| 
                     
                        | Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001BMO0 |  
                        | Model Year Start: 2019 | Model: Avalon HV | Prod Date Range: [04/2018 -                    
                                       ] |  
                        | Title: A25A-FXS (INTAKE / EXHAUST): EXHAUST MANIFOLD: INSTALLATION; 2019 - 2022 MY Avalon HV [04/2018 -        ] |  INSTALLATIONPROCEDURE1. INSTALL NO. 2 EXHAUST MANIFOLD HEAT INSULATOR (a) Install the No. 2 exhaust manifold heat insulator to the exhaust manifold (TWC: Front Catalyst) with the 6 bolts. Torque:  11 N·m {112 kgf·cm, 8 ft·lbf} 2. INSTALL EXHAUST MANIFOLD (TWC: Front Catalyst) (a) Install a new exhaust manifold to head gasket to the cylinder head sub-assembly. (b) Temporarily install the exhaust manifold (TWC: Front Catalyst), No. 1 exhaust manifold heat insulator and No. 1 upper front floor heat insulator. HINT: At this time, do not install the parts with bolts or nuts. 
                     
                        
                           | (c) Using a 12 mm deep socket wrench, temporarily install the exhaust manifold (TWC: Front Catalyst) to the cylinder head sub-assembly with 7 new nuts. |  |  (d) Using the 12 mm deep socket wrench, tighten the 7 nuts in the order shown in the illustration. Torque:  26 N·m {265 kgf·cm, 19 ft·lbf} 3. INSTALL MANIFOLD STAY 
                     
                        
                           | (a) Temporarily install the manifold stay to the exhaust manifold (TWC: Front Catalyst) and cylinder block sub-assembly with the bolt and nut. |  |  (b) Tighten the bolt and nut in the order shown in the illustration. Torque:  43 N·m {438 kgf·cm, 32 ft·lbf} 4. INSTALL NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 
                     
                        
                           | (a) Using a 10 mm union nut wrench, install the No. 1 exhaust manifold heat insulator to the exhaust manifold (TWC: Front Catalyst) with the 5 bolts. Torque:  Specified tightening torque :   10 N·m {102 kgf·cm, 7 ft·lbf} 
                                 HINT: 
                                    
Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
Click here
                                             
                                                
                                                   ![2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION](/t3Portal/stylegraphics/info.gif) 
When using a 10 mm union nut wrench (fulcrum length of 22 mm (0.866 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)): 8.8 N*m (90 kgf*cm, 78 in.*lbf)
 | 
                                 
                                    |   |  
                                    | 
                                          
                                             
                                             
                                          
                                          
                                             
                                                | *a | Torque Wrench Fulcrum Length |  |  |  5. INSTALL NO. 1 UPPER FRONT FLOOR HEAT INSULATOR 
                     
                        
                           | (a) Using a 10 mm union nut wrench, install the  No. 1 upper front floor heat insulator to the vehicle body with the 2 nuts. Torque:  Specified tightening torque :   4.9 N·m {50 kgf·cm, 43 in·lbf} 
                                 HINT: 
                                    
Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
Click here
                                             
                                                
                                                   ![2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION](/t3Portal/stylegraphics/info.gif) 
When using a 10 mm union nut wrench (fulcrum length of 22 mm (0.866 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)): 4.3 N*m (44 kgf*cm, 38 in.*lbf)
 | 
                                 
                                    |   |  
                                    | 
                                          
                                             
                                             
                                          
                                          
                                             
                                                | *a | Torque Wrench Fulcrum Length |  |  |  6. INSTALL WIRE HARNESS CLAMP BRACKET (a) Install the wire harness clamp bracket with the bolt. Torque:  13 N·m {133 kgf·cm, 10 ft·lbf} 7. INSTALL AIR FUEL RATIO SENSOR (for Sensor 1) Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (ENGINE CONTROL): AIR FUEL RATIO SENSOR (for Sensor 1): INSTALLATION](/t3Portal/stylegraphics/info.gif)  8. INSTALL FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; BRAKE SYSTEM (OTHER): BRAKE BOOSTER (for HV Model): INSTALLATION+](/t3Portal/stylegraphics/info.gif)  9. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY Click here
                        
                           
                              ![2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; WIPER / WASHER: FRONT WIPER MOTOR: INSTALLATION](/t3Portal/stylegraphics/info.gif)  10. INSTALL FRONT LOWER NO. 1 FLOOR HEAT INSULATOR Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; P710 (HYBRID TRANSMISSION / TRANSAXLE): TRANSMISSION CONTROL CABLE: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  11. INSTALL FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst) (a) Install 2 new gaskets to the front exhaust pipe assembly (TWC: Rear Catalyst). (b) Connect the front exhaust pipe assembly (TWC: Rear Catalyst) to the 2 exhaust pipe supports. (c) Install the front exhaust pipe assembly (TWC: Rear Catalyst) to the exhaust manifold  (TWC: Front Catalyst) and center exhaust pipe assembly with 2 new bolts and 2 new nuts. Torque:  43 N·m {438 kgf·cm, 32 ft·lbf} (d) Engage the wire harness clamp. (e) Connect the air fuel ratio sensor (for sensor 2) connector. 12. INSTALL CENTER FLOOR CROSSMEMBER BRACE Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (INTAKE / EXHAUST): EXHAUST PIPE: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  13. INSTALL FRONT CENTER FLOOR BRACE Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (INTAKE / EXHAUST): EXHAUST PIPE: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  14. INSTALL FRONT FLOOR COVER LH Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (INTAKE / EXHAUST): EXHAUST PIPE: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  15. INSTALL FRONT FLOOR COVER RH Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (INTAKE / EXHAUST): EXHAUST PIPE: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  16. INSPECT FOR EXHAUST GAS LEAK Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (INTAKE / EXHAUST): EXHAUST PIPE: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  17. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  18. INSTALL NO. 1 ENGINE UNDER COVER Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  19. INSTALL FRONT WHEEL OPENING EXTENSION PAD LH Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  20. INSTALL FRONT WHEEL OPENING EXTENSION PAD RH Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  |