fuel pressure too high

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Dec 16, 2005 | 08:06 AM

lab288

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fuel pressure too high

Hello,
I have a 1995 f150 4X4 with the 5.8 it is starting hard and smells like gas when it finally starts my firend pulled the codes and tested the fuel pressure and says that the pressure is too high at 80 psi what can I do to fix this? the pump is only about 3mo old and it did it befor the change.

Thanks Joel.

Dec 16, 2005 | 08:51 AM

johnsonswamp

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From: Florida

Replace the fuel pressure regulator, fuel pressure is only supposed to be around 35psi.

The pump is fine, the regulator is all that's bad.

Dec 16, 2005 | 10:11 AM

subford

Fleet Owner

Joined: Aug 2005

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From: Easton,Ks

Yes johnsonswamp is right and here's how it works.

Dec 16, 2005 | 07:15 PM

lab288

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I will get it changed thank you for the info.

Joel.

Dec 16, 2005 | 08:41 PM

Popa Tim

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Joined: Jun 2004

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From: Central NY

The regulator and the return line is after the filter and before the Schraeder valve isn't it?

Dec 17, 2005 | 06:37 AM

subford

Fleet Owner

Joined: Aug 2005

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From: Easton,Ks

Quote:

Originally Posted by Popa Tim

The regulator and the return line is after the filter and before the Schraeder valve isn't it?

No, just like it shows in the diagram.

0. Tank
1. Pump
2. Filter
3. Injectors & Schraeder valve in parallel on same fuel manifold.
4. Regulator
5. Tank

Dec 17, 2005 | 03:25 PM

95bluestreak

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Joined: Nov 2005

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lab288 - does it start easily if it has only been stopped for a minute or two? What about after sitting overnight? Just trying to diagnose my problem.