Leak Detection Pump: Description

The Leak Detection Pump (LDP) is bolted to the front of the fuel tank. See Figure.

The Leak Detection Pump (LDP) is used only with certain emission packages.

The LDP is a device used to detect a leak in the evaporative system.

The pump contains a 3 port solenoid, a pump that contains a switch, a spring loaded canister vent valve seal, 2 check valves and a spring/diaphragm.