What is the fuel pressure for a 5.4 L ford expedition engine

100

Asked by Aug 27, 2015 at 01:47 PM about the 2008 Ford Expedition Eddie Bauer 4WD

Question type: Maintenance & Repair

I have a 2008 Ford Expedition and I am having problems with the engine after changing the spark plugs and fuel filter, I think the fuel pressure is too high, 60 before start and above 70 engine running. Is this normal? I can smell gas on the exhaust now. No check engine and verified the spark plugs twice.

4 Answers

148,425

Yes, that is high. Might need a fuel pressure regulator, or Ford calls them modulators. Specs for the 5.4 are 35 psi +/- 5

6 out of 6 people think this is helpful.
100

Do you know where is the fuel pressure regulator located on the truck?

10 out of 10 people think this is helpful.
4,735

35 psi +/-. You are way too high.

4 out of 4 people think this is helpful.

^ that is bso the pressure is 62-71 psi koer with a pressure of 62psi koeo

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