fuel pressure too high

Reply Subscribe

Thread Tools

Search this Thread

Dec 16, 2005 | 08:06 AM

lab288

Thread Starter

New User

Joined: Dec 2004

Posts: 11

Likes: 0

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

Senior User

Joined: Nov 2004

Posts: 447

Likes: 0

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

Posts: 23,667

Likes: 301

From: Easton,Ks

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

Dec 16, 2005 | 07:15 PM

lab288

Thread Starter

New User

Joined: Dec 2004

Posts: 11

Likes: 0

I will get it changed thank you for the info.

Joel.

Dec 16, 2005 | 08:41 PM

Popa Tim

Posting Guru

Joined: Jun 2004

Posts: 1,781

Likes: 1

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

Posts: 23,667

Likes: 301

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

Freshman User

Joined: Nov 2005

Posts: 34

Likes: 0

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.