Engine Trouble

BG11760

MEMBER
1992 FORD F-150
5.0L
V8
RWD
AUTOMATIC
90,000 MILES

My van starts up while foot is pushed in on the pedal. Whenever I take my foot off of the pedal the van stalls out. I smelt gas in the cab and looked and saw leaking. It was leaking from the fuel pressure valve. (Test pressure of fuel running to engine) I changed the TPS and it didn't help me but I am assuming it may be a bad fuel pump? I do not know what to do. Please help.

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,787 POSTS

Have you repaired the fuel leak? What do you mean by fuel pressure valve and what led you to replace the TPS?

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Wednesday, May 25th, 2016 AT 8:22 PM

BG11760

MEMBER
1 POST

The leak was repaird and I was looking into it and people who had the same problem changed their TPS and said it worked soo I gave it a shot but I also need to include I changed the fuel filter and the engine ran for a bit longer then it cutting out. Also I had a 94 explorer that sat for a while and the fuel pump went out I didn't include that this van had been sitting a while this is why I asume fuel pump

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Saturday, May 28th, 2016 AT 9:42 PM

KEN L

MASTER CERTIFIED MECHANIC
47,812 POSTS

IT sounds like the stalling problem is the IAC valve or you have a vacuum leak, check out these guides on how to repair the problem

https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac

and

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

as far as the fuel leak it could be a fuel injector, get a flashlight and inspect each one and change them if leaking this is common problem.

https://www.2carpros.com/articles/how-to-replace-a-fuel-injector

Let me know what you find.

Best, Ken

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Sunday, May 29th, 2016 AT 8:08 AM