Wont stay running

TIM.BAISDEN

MEMBER
1994 FORD F-150
4.9L
V6
4WD
MANUAL
139,000 MILES

My truck is hesitating when you give it the gas and it dies out like its flooding itself but it only does it like one out of three times you give it gas, but its not running good enough to drive it and I changed the throttle body gasket and it fixed most to the problems I am having with it but this one.

5 Replies

HMAC300

MECHANIC
48,601 POSTS

Try cleaning throttle plate on both sides and iac hole with choke cleaner. then check fuel pressure with a gauge if it continues.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

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Tuesday, June 28th, 2016 AT 12:59 PM

TIM.BAISDEN

MEMBER
5 POSTS

OK I cleaned everything and the fuel pressure is 20 psi and it still hesitates when u try and give it gas

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Saturday, July 2nd, 2016 AT 5:11 PM

HMAC300

MECHANIC
48,601 POSTS

Fuel pressure should 45-60 psi engine running and 50-60 psi key on only sounds like you have a bad pump.

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Sunday, July 3rd, 2016 AT 8:07 AM

TIM.BAISDEN

MEMBER
5 POSTS

I just changed the fuel pump and and fuel filter u think it could be a bad one

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Sunday, July 3rd, 2016 AT 8:51 AM

KEN L

MASTER CERTIFIED MECHANIC
42,924 POSTS

Yes sure sounds like it, do the fuel filter too, I have seen where the fuel tank switching valve goes bad in those trucks as well. Please let us know what you find

Best, Ken