Fuel Pressure
WARNING:
Inspect fuel system for leaks or damage before testing fuel pump.
- Release fuel pressure. Install fuel pressure gauge. Turn ignition on and read fuel pressure. Start engine and read fuel pressure. Compare fuel pressure reading on fuel pressure gauge with specifications. For fuel pressure specifications, see FUEL PRESSURE SPECIFICATIONS
article.
- If fuel pressure is not within specifications, check fuel pressure regulator. With engine running, connect hand vacuum pump and apply vacuum to regulator.
- Ensure fuel pressure changes as vacuum at regulator is increased and decreased. If no pressure change occurs, replace regulator and recheck system. For additional testing information, go to CIRCUIT TEST HC in TESTS W/CODES
article.
FUEL PRESSURE SPECIFICATIONS
| Application |
Specification |
| Fuel Line Pressure |
|
| Fuel Volume |
|