Diesel Emissions Fluid Injector Nozzle: Service and Repair

Reductant Injector

Removal

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.

2. Slide the reductant pressure line heat shield back to access the reductant pressure connector on the reductant injector.





3. NOTICE: Do not use any tools when disconnecting the reductant pressure line. The use of tools may cause a deformity in the clip components which may cause reductant leaks.

NOTE: Disconnect the reductant pressure line before disconnecting the reductant injector electrical connector.

Disconnect the reductant pressure line from the reductant injector.





4. NOTE: Make sure the reductant pressure line is disconnected from the reductant injector before disconnecting the reductant injector electrical connector.

Disconnect the reductant injector electrical connector.





5. Remove the 2 nuts and the reductant injector and gasket.
- Discard the gasket.

Installation

1. NOTE: When reinstalling the reductant injector, a new reductant injector gasket must be installed.

Install a new gasket and the reductant injector.

- Tighten to 25 Nm (18 lb-ft).

2. Connect the reductant injector electrical connector.





3. Connect the reductant pressure line to the reductant injector.





4. NOTICE: Make sure the reductant pressure line heat shield is installed back in position. Failure to do so can cause system overheating or freeze up.

Slide the reductant pressure line heat shield back on the reductant pressure connector on the reductant injector.