Leak Detection Pump: Service and Repair

REMOVAL

Fig.14 EVAP Canister/LDP Location:

Fig.15 Disconnecting ORVR Vapor Lines:

The Leak Detection Pump (LDP), LDP Filter, and EVAP canister are attached to a common support bracket. This support assembly is located to the rear of the right / rear tire under the plastic wheelhouse liner. The LDP filter is also located near the EVAP canister. The LDP and LDP filter are replaced (serviced) as one unit.

1. Remove right/rear tire/wheel.
2. Remove wheelhouse liner at right/rear wheel.
3. Remove vertical support bracket to gain access to 2 ORVR vapor lines.
4. Two vapor lines connect the fuel tank to the EVAP canister and Leak Detection Pump (LDP). This connection is made near the right/rear corner of the fuel tank. Carefully disconnect these 2 vapor lines near top of flow management valve. Be very careful not to bend or kink the vapor lines. If lines leak, a Diagnostic Trouble Code (DTC) will be set.

Fig.16 Common Support Bracket Assembly:

5. Remove common support bracket assembly containing LDP pump, LDP filter and EVAP canister from vehicle. While lowering this assembly, disconnect LDP electrical connector at LDP pump. Do not allow the assembly to hang from the wire harness.
6. Carefully separate hose at bottom of LDP filter.
7. Carefully remove vapor/vacuum lines at LDP.
8. If necessary remove LDP filter mounting bolt and remove filter.
9. Remove EVAP canister from common support bracket by removing 4 nuts.

Fig.17 LDP Mounting Bolts:

10. Remove 3 LDP mounting bolts and remove LDP from support bracket.

INSTALLATION
The Leak Detection Pump (LDP), LDP Filter, and EVAP canister are attached to a common support bracket. This support assembly is located to the rear of the right / rear tire under the plastic wheelhouse liner. The LDP filter is also located near the EVAP canister. The LDP and LDP filter are replaced (serviced) as one unit.

1. Install LDP and 3 mounting bolts to common support bracket. Tighten bolts to 1 Nm (11 in. lbs.) torque.
2. If necessary install LDP filter to common support bracket. Tighten bolt to 7 Nm (65 in. lbs.) torque.
3. Install EVAP canister to common support bracket and install 4 mounting nuts.
4. Carefully install vapor/vacuum lines to LDP, LDP filter and EVAP canister. 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) will be set.
5. Raise assembly into position while connecting electrical connector to LDP. Do not allow this assembly to hang from the wire harness. While assembly is still being supported, connect 2 vapor lines to fuel tank. This connection is made near the right/rear corner of the fuel tank. Carefully connect these 2 vapor lines near top of flow management valve. Be very careful not to bend or kink the vapor lines. If lines leak, a Diagnostic Trouble Code (DTC) will be set.
6. Position common support bracket assembly to body Install and tighten bolts.
7. Install vertical support bracket.
8. Install wheelhouse liner at right/rear wheel.
9. Install right/rear tire/wheel.