Grand Cherokee 2WD V8-4.7L VIN N (2000)
Leak Detection Pump: Service and Repair
Fig. 18 Leak Detection Pump (LDP) Removal/Installation
The LDP is located in the left/front corner of engine compartment below the air cleaner housing. It is mounted to left/front inner fender sheet metal. The
LDP and LDP filter are replaced (serviced) as one unit.
REMOVAL
1. Remove air cleaner housing. Refer to Air Cleaner Housing/Resonator/Ducts Removal/Installation.
2. Disconnect electrical connector at LDP.
3. Carefully remove vapor/vacuum lines at LDP.
4. Remove 3 LDP mounting bolts.
5. Remove LDP from inner fender.
INSTALLATION
1. Install LDP assembly to inner fender. Install 3 bolts and tighten to 2 Nm (20 in. lbs.) torque.
2. Carefully install vapor/vacuum lines to LDP and 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.
3. Connect electrical connector to LDP.
4. Install air cleaner housing. Refer to Air Cleaner Housing/Resonator/Ducts Removal/Installation.
