gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Evaporative System Service Port > < Evaporative Emission (EVAP) Hoses/Pipes Replacement - Canister/Fuel Tank|Page 8271
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5. Remove the caps from the fuel and balance lines at the fuel tank.
6. Connect the fuel feed and pressure balance lines from the front tank.
7. Install the fuel fill cap.
8. Connect the negative battery cable.
9. Perform the following procedure in order to inspect for leaks.

1. Turn the ignition ON, with the engine OFF, for 2 seconds.
2. Turn the ignition OFF for 10 seconds.
3. Turn the ignition ON, with the engine OFF.
4. Inspect for fuel leaks.

Evaporative System Service Port > < Evaporative Emission (EVAP) Hoses/Pipes Replacement - Canister/Fuel Tank|Page 8271