Assembly, Diesel Exhaust Fluid Pump: Removal
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect and isolate both of the negative battery cables.
- Drain the Diesel Exhaust Fluid (DEF) tank. Refer to DIESEL EXHAUST FLUID EMISSIONS, STANDARD PROCEDURE .
- Remove the bolts (1) and the DEF pump cover (2).
- Disconnect DEF supply line (3) from the DEF pump.CAUTION:
DEF is highly corrosive. If the wire harness connector is exposed to DEF fluid during service replace the DEF tank wire harness.
- Disconnect the DEF pump wire harness connector (1) and tie the wire harness connector away to prevent exposure to the DEF fluid.
- Using the (special tool #9340, SAE Fuel Pump Lock Ring Wrench) (1), remove the lock ring (3) from the DEF tank.
- Remove the DEF pump and level sensor (2) from tank.
- Remove and discard O-ring seal (1).