RAM 2500 Truck 2WD V8-5.9L VIN 5 HDC (1998)
Leak Detection Pump: Service and Repair
Leak Detection Pump
The LDP and LDP filter are attached to a bracket mounted to the right-inner fender. The LDP and LDP filter are replaced (serviced) as one unit.
REMOVAL
1. Carefully remove hose at LDP filter.
2. Remove LDP filter mounting bolt and remove from vehicle.
3. Carefully remove vapor/vacuum lines at LDP.
4. Disconnect electrical connector at LDP.
5. Remove LDP mounting screws and remove LDP from vehicle.
INSTALLATION
1. Install LDP to mounting bracket. Tighten screws to 1 Nm (11 in. lbs.) torque.
2. Install LDP filter to mounting bracket. Tighten bolt to 7 Nm (65 in. lbs.) torque.
3. Carefully install vapor/vacuum lines to LDP, and install hose to LDP filter. The vapor/vacuum lines and hoses must be firmly connected. Check
the vapor/vacuum lines at the LDP, LDP filter and EVAP canister purge solenoid for damage or leaks. If a leak is present, a Diagnostic Trouble
Code (DTC) may be set.
4. Connect electrical connector to LDP.
