| 
                           Last Modified: 05-08-2025 | 
                        6.11:8.1.0  | 
                        
                           Doc ID: RM100000001FFX1 | 
                      
                     
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                           Model Year Start: 2019 | 
                        
                           Model: RAV4 HV | 
                        
                           Prod Date Range: [11/2018 - 02/2019] | 
                      
                     
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                           Title: A25A-FXS (ENGINE MECHANICAL): CYLINDER HEAD GASKET: REMOVAL; 2019 MY RAV4 HV [11/2018 - 02/2019] | 
                      
                   
                  REMOVAL
                   
                  CAUTION / NOTICE / HINT
                  The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during cylinder head gasket removal/installation are shown below. 
                  Necessary Procedure After Parts Removed/Installed/Replaced
                  
                     
                        
                        
                        
                        
                     
                     
                        
                           | 
                               Replaced Part or Performed Procedure 
                            | 
                           
                               Necessary Procedure 
                            | 
                           
                               Effect/Inoperative Function when Necessary Procedure not Performed 
                            | 
                           
                               Link 
                            | 
                         
                     
                     
                        
                           | 
                               Auxiliary battery terminal is disconnected/reconnected 
                            | 
                           
                               Perform steering sensor zero point calibration 
                            | 
                           
                               Lane control system 
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
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                               Pre-collision system 
                            | 
                         
                        
                           | 
                               Memorize steering angle neutral point 
                            | 
                           
                               Parking assist monitor system 
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           | 
                               Panoramic view monitor system (for HV model) 
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           | 
                               Reset back door close position 
                            | 
                           
                               Power back door system (for HV model) 
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           | 
                               Back door lock initialization 
                            | 
                           
                               Power door lock control system 
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           | 
                               Replacement of ECM 
                            | 
                           
                               Perform Vehicle Identification Number (VIN) registration 
                            | 
                           
                               DTC P063051 is output 
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           
                              
                                 
                                    - 
Gas leak from exhaust system is repaired
 
                                    - 
Replacement of throttle body with motor assembly
 
                                    - 
Replacement of cam timing control motor with EDU assembly
 
                                    - 
Removal and installation of a cam timing control motor with EDU assembly
 
                                    - 
Replacement of camshaft timing gear assembly
 
                                    - 
Removal and installation of a camshaft timing gear assembly
 
                                    - 
Replacement of cylinder head sub-assembly
 
                                    - 
Replacement of camshaft (for intake or exhaust camshaft)
 
                                    - 
Replacement of camshaft timing exhaust gear assembly
 
                                    - 
Replacement of port fuel injector assembly
 
                                    - 
Replacement of direct fuel injector assembly
 
                                    - 
Replacement of fuel pump assembly (for high pressure side)
 
                                    - 
Replacement of spark plug
 
                                    - 
Replacement of ignition coil assembly
 
                                    - 
Replacement of EGR valve assembly
 
                                    - 
Replacement of knock control sensor
 
                                    - 
Replacement of air fuel ratio sensor (sensor 2)
 
                                  
                               
                            | 
                           
                               Inspection after repair 
                            | 
                           
                              
                                 
                                    - 
Poor idle, etc.
 
                                    - 
Engine start function, etc.
 
                                  
                               
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           | 
                               Replacement of inverter with converter assembly 
                            | 
                           
                               Resolver learning 
                            | 
                           
                              
                                 
                                    - 
DTCs are stored
 
                                    - 
Slight vibration at a vehicle speed of 5 km/h (3 mph) or less
 
                                    - 
Shock or vibration during acceleration
 
                                  
                               
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           | 
                               Replacement of hybrid vehicle transaxle assembly 
                            | 
                           
                              
                                 
                                    - 
Resolver learning
 
                                    - 
Initialize resolver
 
                                  
                               
                            | 
                         
                        
                           | 
                               Suspension, tires, etc. 
                              (The vehicle height changes because of suspension or tire replacement) 
                            | 
                           
                               Television camera assembly optical axis (Back camera position setting) 
                            | 
                           
                               Parking assist monitor system 
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           
                              
                                 
                                    - 
Parking assist ECU initialization
 
                                    - 
Adjust steering angle
 
                                  
                               
                            | 
                           
                               Panoramic view monitor system (for HV model) 
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           | 
                               Replacement of headlight ECU sub-assembly LH 
                            | 
                           
                              
                                 
                                    - 
Synchronize the vehicle information
 
                                    - 
Perform headlight ECU sub-assembly LH initialization
 
                                  
                               
                            | 
                           
                               Lighting system (EXT)(w/ Headlight ECU) 
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           | 
                               Suspension, tires, etc. 
                              (The vehicle height changes because of suspension or tire replacement) 
                            | 
                           
                               Perform headlight ECU sub-assembly LH initialization 
                            | 
                         
                        
                           | 
                               Front wheel alignment adjustment 
                            | 
                           
                              
                                 
                                    - 
Clear the zero point calibration data and stored linear solenoid valve calibration data.
 
                                    - 
Perform initialization and calibration of the linear solenoid valve.
 
                                    - 
Perform yaw rate and acceleration sensor zero point calibration.
 
                                  
                               
                            | 
                           
                              
                                 
                                    - 
DTCs are stored
 
                                    - 
ABS warning light illuminates
 
                                    - 
Brake warning light / yellow (minor malfunction) illuminates
 
                                    - 
Slip indicator light illuminates
 
                                    - 
VSC disabled or malfunctions
 
                                  
                               
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                        
                           | 
                               Front bumper assembly (Including removal and installation) 
                            | 
                           
                               Front television camera view adjustment 
                            | 
                           
                               Panoramic view monitor system (for HV model) 
                            | 
                           
                               
                                 
                                    
                                       
                                           
                                       
                                    
                                 
                               
                            | 
                         
                     
                   
                  
                     NOTICE: 
                     
                        - 
After the power switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the power switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) auxiliary battery terminal.
Waiting Time before Disconnecting Cable from Negative (-) Auxiliary Battery Terminal
                           
                              
                                 
                                 
                              
                              
                                 
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                                        System Name 
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                                        See Procedure 
                                     | 
                                  
                              
                              
                                 
                                    | 
                                        Vehicle enrolled in Toyota Entune system or safety connect system 
                                     | 
                                    
                                        6 minutes 
                                     | 
                                  
                                 
                                    | 
                                        Vehicle not enrolled in Toyota Entune system and safety connect system 
                                     | 
                                    
                                        1 minute 
                                     | 
                                  
                              
                            
                         
                        - 
This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.
Click here
                                 
                                    
                                        
                                    
                                 
                              
                            
                         
                      
                   
                   
                  PROCEDURE
                   
                  1. INSTALL ENGINE ASSEMBLY TO ENGINE STAND 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  2. REMOVE ENGINE HANGERS 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  3. REMOVE COMPRESSOR ASSEMBLY WITH PULLEY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  4. REMOVE NO. 2 WATER BY-PASS PIPE SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  5. REMOVE FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY) 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  6. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  7. REMOVE MANIFOLD STAY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  8. REMOVE EXHAUST MANIFOLD 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  9. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  10. REMOVE EGR COOLER ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  11. REMOVE NO. 1 EGR PIPE SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  12. REMOVE NO. 4 WATER BY-PASS HOSE 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  13. REMOVE EGR VALVE ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  14. REMOVE NO. 3 WATER BY-PASS PIPE 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  15. REMOVE NO. 2 WATER BY-PASS PIPE 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  16. REMOVE INTAKE MANIFOLD 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  17. REMOVE NO. 1 INTAKE MANIFOLD TO HEAD GASKET 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  18. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  19. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  20. REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY (for High Pressure) 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  21. REMOVE NO. 7 WATER BY-PASS HOSE 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  22. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  23. REMOVE NO. 1 DELIVERY PIPE SPACER 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  24. REMOVE INJECTOR VIBRATION INSULATOR 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  25. REMOVE NO. 5 ENGINE WIRE 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  26. REMOVE PORT FUEL INJECTOR ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  27. REMOVE FUEL DELIVERY PIPE 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  28. REMOVE DIRECT FUEL INJECTOR ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  29. REMOVE FUEL INJECTOR SEAL 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  30. REMOVE IGNITION COIL ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  31. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  32. REMOVE OIL PRESSURE CONTROL VALVE ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  33. REMOVE CAMSHAFT POSITION SENSOR (for Intake Side) 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  34. REMOVE CAMSHAFT POSITION SENSOR (for Exhaust Side) 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  35. REMOVE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  36. REMOVE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  37. DISCONNECT NO. 1 WATER BY-PASS HOSE 
                  
                     
                        
                           | 
                               (a) Slide the clip and disconnect the No. 1 water by-pass hose from the cylinder block sub-assembly. 
                            | 
                           
                              
                            | 
                         
                     
                   
                   
                  38. DISCONNECT NO. 2 WATER BY-PASS HOSE 
                  
                     
                        
                           | 
                               (a) Slide the clip and disconnect the No. 2 water by-pass hose from the No. 1 water by-pass pipe sub-assembly. 
                            | 
                           
                              
                            | 
                         
                     
                   
                   
                  39. REMOVE CRANKSHAFT PULLEY ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  40. REMOVE WATER OUTLET 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  41. REMOVE OUTLET WATER BY-PASS SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  42. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  43. REMOVE SPARK PLUG TUBE GASKET 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  44. REMOVE ENGINE MOUNTING BRACKET RH 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  45. REMOVE NO. 2 TIMING CHAIN COVER ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  46. REMOVE TIMING CHAIN COVER OIL SEAL 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  47. SET NO. 1 CYLINDER TO TDC (COMPRESSION) 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  48. REMOVE OIL PUMP DRIVE CHAIN SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  49. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  50. REMOVE CHAIN SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  51. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  52. REMOVE CHAIN TENSIONER SLIPPER 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  53. REMOVE NO. 1 CHAIN VIBRATION DAMPER 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  54. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  55. REMOVE TIMING CHAIN COVER ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  56. REMOVE FUEL PUMP LIFTER GUIDE 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  57. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  58. REMOVE CAMSHAFT BEARING CAP 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  59. REMOVE CAMSHAFT 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  60. REMOVE NO. 2 CAMSHAFT 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  61. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  62. REMOVE VALVE LASH ADJUSTER ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  63. REMOVE VALVE STEM CAP 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  64. REMOVE CYLINDER HEAD SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  65. REMOVE CYLINDER HEAD GASKET 
                   
                  (a) Remove the cylinder head gasket from the cylinder block sub-assembly. 
                   
                  66. INSPECT CYLINDER HEAD SET BOLT 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                   
                  67. INSPECT CYLINDER HEAD SUB-ASSEMBLY 
                  Click here
                        
                           
                               
                           
                        
                     
                   
                  
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