OEM Buick Terraza Fuel Tank

Buick Terraza Fuel Tank Parts and Q&A

• Fuel Tank
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  Q: What tools are required to replace the fuel tank module on a long wheelbase on Buick Terraza?

  A:

  You need to use the fuel sender lock nut wrench (J 45722) to replace the Fuel Tank module of a long wheelbase vehicle. Start by taking off the Fuel Tank followed by disconnecting wires from the Fuel Tank module. All fuel pipe and hose connections require cleaning before any disconnect procedure becomes necessary to avoid contamination. The first step is to disconnect both quick connect fittings that lead the fuel feed pipe and the evaporative emission (EVAP) pipe from their module positions. Unlock the fuel sender lock ring through counterclockwise rotation using the fuel sender lock nut wrench (J 45722) together with a long breaker-bar while draining the fuel to safe containers as a fire precaution. Extract the Fuel Tank module with its seal while disposing of the aging module seal then clean both sealing areas. Check for damage on the lock ring while also measuring its warpage against 0.41 mm (0.016 inches); perform a replacement if warpage exceeds this measurement. The installation of a new Fuel Tank module requires users to place a fresh Fuel Tank module seal on the Fuel Tank so the Fuel Pump Strainer remains untwisted and unfolded. Place the new Fuel Tank module into the Fuel Tank before securing the lock ring through clockwise rotation of the fuel sender lock nut wrench (J 45722). The procedure ends by reconnecting the evap quick connect fittings, the fuel feed pipe quick connect fitting, the Fuel Tank harness electrical connectors, and placing the Fuel Tank back in position.