Fuel Pressure Relief

4 & 8 Cylinder Engines

1. With engine Off, remove fuel pump fuse from fuse block.
2. Start engine and allow to run until fuel supply is exhausted.
3. Crank engine an additional 3 seconds to ensure fuel supply is exhausted.
4. Install fuel pump fuse.
5. On 4-112 and 4-121 overhead valve engines, install fuel pressure gauge between throttle body side of fuel filter at the rear of the car. On 4-151 engines, install fuel pressure gauge between TBI unit and steel fuel line. On V8 engines, install fuel gauge between front and rear TBI units steel fuel line.
6. Start engine and observe fuel pressure. It should be 9 to 13 psi.
7. Relieve fuel system pressure. Refer to steps 1 through 3 above.
8. Remove fuel pressure gauge and reinstall fuel lines.
9. Start engine and check for fuel leaks.