RAM 3500 Van V8-360 5.9L VIN 5 Magnum (1998)
Leak Detection Pump: Service and Repair
Leak Detection Pump Mounting
The LDP, LDP filter and EVAP purge solenoid are attached to a common bracket. The assembly is located in the engine compartment on the left-inner
wheelhouse (fender). The LDP and LDP filter are replaced (serviced) as one unit.
REMOVAL
1. Disconnect negative battery cable at battery
2. Disconnect electrical connector at duty cycle purge solenoid.
3. Remove duty cycle purge solenoid from bracket.
4. Disconnect electrical connector at LDP.
5. Carefully remove vapor/vacuum lines at LDP.
6. Remove two bracket mounting bolts.
7. Remove LDP, LDP filter and bracket assembly from vehicle.
8. Remove 3 LDP mounting screws and remove LDP from bracket.
9. Remove LDP filter mounting bolt.
INSTALLATION
1. Install LDP filter to bracket. Tighten mounting bolt to 7 Nm (65 in. lbs.) torque.
2. Install LDP to bracket. Tighten screws to 1 Nm (11 in. lbs.) torque.
3. Install LDP and bracket assembly to body and install mounting bolts. Tighten bolts to 7 Nm (65 in. lbs.) torque.
4. Carefully install vapor/vacuum lines to LDP. 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.
5. Connect electrical connector to LDP.
6. Install duty cycle purge solenoid to bracket.
7. Connect negative battery cable to battery.
