Wrangler L4-2.5L VIN P (1999)
Leak Detection Pump: Service and Repair
EVAP Canister, Purge Solenoid And LDP Location
The LDP is located in the engine compartment near the EVAP canister. The LDP filter is also located near the EVAP canister. The LDP and LDP filter
are replaced (serviced) as one unit
REMOVAL
1. Carefully remove vapor/vacuum lines at LDP.
2. Disconnect electrical connector at LDP.
3. Remove LDP filter mounting bolt.
Leak Detection Pump (LDP) Mounting Screws
4. Remove 3 LDP mounting screws and remove from vehicle.
5. Carefully separate hose at bottom of LDP filter.
INSTALLATION
1. Install LDP connecting hose to LDP and filter.
2. Position LDP and LDP filter (as an assembly) to vehicle.
3. Install LDP filter to mounting bracket. Tighten bolt to 7 Nm (65 in. lbs.) torque.
4. Install LDP to mounting bracket. Tighten screws to 1 Nm (11 in. lbs.) torque.
5. 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.
6. Connect electrical connector to LDP.
