Removal Procedure
- NOTE:
Left side shown, right side similar.
Front Wheelhouse Liner-Right Side (3) - Remove - Front Wheelhouse Liner Replacement
Emission Reduction Fluid Injector Clamp (1) - Remove
- Reductant Fluid Injector (2) - Remove
- Exhaust System Front Gasket (3) - Remove and DISCARD
- Clean the exhaust mounting flange and injector mounting surfaces to remove any soot or emission reduction fluid deposits.
Disconnect the exhaust temperature sensor position 3 electrical connector (2).
- Exhaust Temperature Sensor Clip (3) @Exhaust Temperature Sensor (1) - Unclip [2x]
Exhaust Temperature Sensor- Position 3 (1) - Remove
Disconnect the nitrogen oxides sensor position 2 electrical connector (3).
- Nitrogen Oxides Sensor Bolt (2) - Remove [2x]
- Nitrogen Oxides Sensor- Position 2 (4) - Remove
Nitrogen Oxides Sensor Cable Clip (1) @Nitrogen Oxides Sensor- Position 2 (2) - Remove [2x]
Nitrogen Oxides Sensor- Position 2 (1) - Remove
- Support the transmission with a suitable jack.
{If equipped} Transfer Case Skid Shield Bolt (1) - Remove [3x]
- {If equipped} Transfer Case Skid Shield (2) - Remove
Fuel Heater Inlet and Outlet Bolt (2) @Transmission Support Crossmember - Remove
- Hose Clip (3) @Transmission Support Crossmember - Remove
- Fuel Cooler Coolant Cooler Inlet Hose (4) - Reposition away
Transmission Mount Nut (1) - Remove [3x]
Fuel Heater Inlet and Outlet Nut (1) - Remove [2x]
- Remove the auxiliary radiator outlet hose (2) from the exhaust bracket stud and the transmission fluid cooler pipe stud and reposition the auxiliary radiator outlet hose.
Fuel Heater Inlet and Outlet Nut (2) - Remove
- Exhaust Front Bracket (4) - Reposition
- NOTE:
Clip is released to allow for more room for pipe movement when removing the nitrogen oxides catalytic converter.
Transmission Fluid Cooler Inlet and Outlet Pipe Clip (1) - Release
Exhaust Bracket Stud (1) - Remove
- Catalytic Converter Brace Bracket Bolt (2) - Remove
Remove the exhaust front bracket and exhaust front insulator (1) as an assembly.
Exhaust Front Pipe Nut (1) - Remove [4x]
Exhaust System Rear Nut (1) - Remove [4x]
Transmission Support Crossmember Nut (2) - Remove [4x]
- Reposition the nitrogen oxides catalytic converter for access to remove the right side inner transmission support crossmember bolt (1).
- Transmission Support Crossmember Bolt (1) - Remove [4x]
Transmission Support Crossmember (1) - Remove
Transmission Mount Bolt (2) - Remove and DISCARD [2x]
- Transmission Mount (1) - Remove and DISCARD
With the aid of an assistant, reposition the transmission and lower the nitrogen oxides catalytic converter (1) from the vehicle.
- Exhaust System Seal (2) - Remove and DISCARD
- Exhaust System Seal (3) - Remove and DISCARD
- Lower the transmission enough to gain access to the transmission vent hose clip bracket.
Transmission Vent Hose Clip Bracket Nut (3) - Remove
Disconnect the transfer case vent hose (1) from the transfer case.
- Disconnect the transfer case vent hose retainer (2).
- Transfer Case Vent Hose (1) - Remove
Do not use a prying tool to remove the injector.
After removing the injector, wipe any residual DEF with a clean towel to avoid urea crystal build up at the connection during installation. Urea crystal build-up can result in a future leak.