Please help
Thread Starter
|
New User
Joined: Dec 2013
Posts: 7
Likes: 0
Please help
Ok I have a 92 f150 with the 5.8 it will start up on cold start and run ok it might surge a little on idle and I can drive it and it will run as long as I don't shut it off when I do shut it off then it will not start back unless you hold gas pedal to the floor it is like it is loading up on fuel please I need help to figure this out it all started after sitting for about a month
Postmaster
Joined: Jan 2009
Posts: 4,558
Likes: 2
Ok I have a 92 f150 with the 5.8 it will start up on cold start and run ok it might surge a little on idle and I can drive it and it will run as long as I don't shut it off when I do shut it off then it will not start back unless you hold gas pedal to the floor it is like it is loading up on fuel please I need help to figure this out it all started after sitting for about a month
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Edit:
lew52 beat me to the post but X2 ^ what he said.
Sounds like a bad fuel pressure regulator.
Pull the vacuum hose off the nipple on top it and turn the key on and off with a cold engine.
If fuel comes out the nipple it is bad.
lew52 beat me to the post but X2 ^ what he said.
Sounds like a bad fuel pressure regulator.
Pull the vacuum hose off the nipple on top it and turn the key on and off with a cold engine.
If fuel comes out the nipple it is bad.
Posting Guru
Joined: Jan 2004
Posts: 2,403
Likes: 4
From: Charlestown, RI
First off, welcome to FTE. 
Check the vacuum line to your fuel pressure regulator. Many times, the diaphragm in the regulator bursts, and the vacuum line sucks fuel through it, which would explain your "flooding" condition.
It could also be an injector or two that sticks open, but start with the easy stuff first.
Check the vacuum line to your fuel pressure regulator. Many times, the diaphragm in the regulator bursts, and the vacuum line sucks fuel through it, which would explain your "flooding" condition.
It could also be an injector or two that sticks open, but start with the easy stuff first.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
A leaking regulator would cause a rich condition and that is good for starting cold but bad for starting warm.
Trending Topics
Thread Starter
|
New User
Joined: Dec 2013
Posts: 7
Likes: 0
I went out and check the regulator it is not leaking check vacum didnt find any leaks has good vacum what else should I check please help this is my sons truck
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Engine Coolant Temperature (ECT) Sensor located center front of engine, on thermostat housing.
It tells the PCM Computer the water Temperature and it has nothing to do with the gauge on the dash cluster.
Air Charge Temperature (ACT or IAT) Sensor located top center front of engine, near intake runner #6.
It tells the PCM Computer the air Temperature of the incoming air.
IAT (Intake Air Temperature) & ACT are the same device, they are called by both names.
It tells the PCM Computer the water Temperature and it has nothing to do with the gauge on the dash cluster.
Air Charge Temperature (ACT or IAT) Sensor located top center front of engine, near intake runner #6.
It tells the PCM Computer the air Temperature of the incoming air.
IAT (Intake Air Temperature) & ACT are the same device, they are called by both names.
Lead Driver
Joined: Dec 2012
Posts: 7,877
Likes: 49
From: Tennessee
I think the others are giving good advice .I would like to add one more thing to look at , The Idle Control Valve . I have seen two cause similar symptoms .Not normal , but possible . Clean it and see what happens .
Lead Driver
Joined: Dec 2012
Posts: 7,877
Likes: 49
From: Tennessee
Then pin test with a DVOM , resistance chart and an IR gun ( for temp readings )