Fuel Pressure Release: Service and Repair

Fuel Pressure Relief (Without CH 48027)
Warning: Refer to Gasoline/Gasoline Vapors Warning Service Precautions.

Warning: Refer to Relieving Fuel Pressure Warning Service Precautions.


1. If the fuel system requires repair, prevent fuel spillage by removing the fuel pump fuse. Refer to Electrical Center Identification Views Fuse Block - Auxiliary Label.
2. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure.
3. Remove the engine cover, if required.
4. Remove the fuel rail service port cap.
5. Wrap a shop towel around the fuel rail service port and using a small flat-bladed tool, depress (open) the fuel rail test port valve.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline container.
7. Install the fuel rail service port cap.
8. Install the engine cover, if required.
9. Tighten the fuel fill cap.