Test Description

WARNING: This page is about a different variant/trim than selected.

1: This step determines that no EVAP diagnostic DTC is present.
3: This step tests for location of fuel leakage in the fuel lines.
4: This step tests for fuel leaks below the fuel level in the fuel tank.
5: This step tests for a location of fuel vapors escaping above the fuel level in the fuel tank.

Fuel Tank Leak Test

Step	Action	Yes	No
1	Did you perform the Diagnostic System Check-Engine Controls?	Go to Step 2	Go to Diagnostic System Check - Engine Controls
2	CAUTION: Refer to Gasoline/Gasoline Vapors Caution in Cautions and Notices. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information. Inspect the fuel tanks and the fuel pipes for damage or external leaks. Did you find fuel leaking from the fuel tank?	Go to Step 7	Go to Step 3
3	Turn ON the ignition, with the engine OFF. Command the fuel pump ON with a scan tool. Inspect for fuel leaking from the fuel pipe. Did you locate a fuel leak from the fuel pipes?	Go to Step 8	Go to Step 4
4	Install the J 41415-40 Fuel Tank Cap Adapter. Connect the J 41413-200 Evaporative Emissions System Tester (EEST) to the J 41415-40 . Command the EVAP vent valve ON with a scan tool. Pressurize the fuel tank with the J 41413-200 . Inspect for a fuel leak from the fuel tank. Did you locate a fuel leak from the fuel tank?	Go to Step 7	Go to Step 5
5	Maintain pressure in the fuel tank with the J 41413-200 . IMPORTANT: It may be necessary to partially lower the fuel tank. Refer to Fuel Tank Replacement . Test for leaks above the fuel level in the following locations with the J 41416 Ultrasonic Leak Detector. The fuel tank, fill limiter vent valve, pressure relief valve and rollover valves-Refer to Fuel Tank Replacement . The fuel sender housing and fuel sender seal-Refer to Fuel Tank Module Replacement - Primary and Fuel Tank Module Replacement - Secondary . The fuel tank pressure (FTP) sensor seal-Refer to Fuel Tank Pressure Sensor Replacement . The EVAP vapor pipes-Refer to Evaporative Emission (EVAP) Hoses/Pipes Replacement - Chassis/Canister . The fuel fill pipe and hose-Refer to Filler Tube Replacement . Did you locate a fuel leak in any area?	Go to Step 6	Go to Diagnostic Aids
6	Repair the system as necessary. Did you complete the repair?	System OK	-
7	Replace the fuel tank. Refer to Fuel Tank Replacement . Did you complete the repair?	System OK	-
8	Replace the leaking fuel pipe. Refer to Fuel Hoses/Pipes Replacement - Filter to Tank and Fuel Hose/Pipes Replacement - Chassis . Did you complete the replacement?	System OK	-