I HAVE A 99 F150 5

1999 Ford F-150

Tiny

Anonymous

November, 9, 2012 AT 12:26 AM

I have a 99 f150 5.4. It runs fine but I have to prime the fuel system before I can start it about 5 to 6 time. I have changed fuel pressure regulator, fuel pump, fuel filter. I have also removed the fuel rail and checked the injectors for leaks but none found. What else can I check? Fuel pressure drops to zero as soon as the key is turn off.

FOUND 65 RELATED QUESTIONS

1 Answer

Tiny

ASEMaster6371

November, 9, 2012 AT 4:24 AM

You either have a fuel leak or a ad check valve in the fuel pump.

Roy

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