truck won't stay running

450

Asked by Jul 28, 2012 at 08:32 AM about the 1991 Ford F-150 S SB

Question type: Maintenance & Repair

have had some problems keeping truck running, a couple of weeks ago was stopped at red light and truck died got towwed home now it will start but won't stay running runs good for about a minute and smothers out like it has ran out of gas both tanks have plenty of fuel in them. Pumps sound good and strong when i turn the key on and changed filter the other day and had a friend turn key on and observed fuel line before putting fuel line back on filter fuel just squirted about a foot out of line when key was turned on, i figured it would have more pressure than that , if anyone has a suggestion please help.

25 Answers

20,860

After it kills, will it restart immediately? Or does it have to crank over a few times to start?

107 of 107 people found this helpful.
20,860

What I'm asking is does it start right up the first time, then not catch right away after it kills?

40 of 40 people found this helpful.
450

ok it will start the first when cold run about a minute or less and smothers out like it ran out of fuel,try to restart it and u can hear the pump motor just for a split second and wont start keep cranking no start. I can wait about ten minutes and it will start fine and then kills out almost a minute. We took the bed off and checked pumps ran a hot wire to them from battery and took fuel pump relay out and startted right up and stayed running so wired em up to run both tanks off of a 3 way toggle switch for front and rear tanks works perfect runs really well.I'm thinking i have an electrical problem now i still gotta fix it right but gets me where i need to go for now

37 of 37 people found this helpful.
20,860

Sounds like you have a faulty relay somewhere. It appears may be heating up after a minute or so, then cutting out. When you bypass the curcuit by running it directly from the battery you're bypassing the problem oviously. Get a clinton or haynes book for the year which has a wiring relay/schematic section. The problem may be right there in the fuse box. Most, if not all of the fuel system circutry begins and ends there.

23 of 23 people found this helpful.
450

Thank you OJ havent tried anything on that yet working 6 days a week havent much time,but i was thinking could it be my EEC?

8 of 8 people found this helpful.
230

My 1979 F-100 300 cu. in. 6 cyl. would be very hard to start at times and would often die while driving down the road (and would start back up while still rolling) I replaced the fuel pump that is on the side of the engine-no help (but solved an oil leak as it was loose). I took the wiring harness off and cleaned it up and checked for continuity---the wires were okay. I checked the Ignition Control Module (ICM) as recommended in my Ford Electrical and Vacuum Diagram Manual using a jumper as it said to do---it checked out okay. I replaced the ICM ($24 for an improved unit) and now it starts up every time and does not die.

23 of 23 people found this helpful.
300

my truck run then it die what that problem

25 of 25 people found this helpful.
150

Sounds like you're fuel filter is not let enough fuel to get past to keep the vehicle running and it is running out of fuel than it set for awhile fuel fill the lines and you can start it again until the line empties again.

15 of 15 people found this helpful.
150

I have a 2006 Ford f150 I was driving after I pumped gas a convenience store heading on road while driving truck stalled and showed oil pressure oil checked it n was good took it to shop n show code for gas pump they installed new n didn't turnon mechanic thinks it might have a short cause he put it on computer n everything looks good what do ya think

11 of 11 people found this helpful.
150

I have a 2006 Ford f150 I was driving after I pumped gas a convenience store heading on road while driving truck stalled and showed oil pressure oil checked it n was good took it to shop n show code for gas pump they installed new n didn't turnon mechanic thinks it might have a short cause he put it on computer n everything looks good what do ya think

4 of 4 people found this helpful.
50

I found that my problem was a yellow wire from my sylanoid on fire wall towards the head lights was not getting good connection , some wire nuts fixed it. Could be your problem, wouldn't hurt to check yours hope this helps also emergency fuel pump cut off reset could help

5 of 5 people found this helpful.
870

I got a f-150 that's getting fuel and fire. It will crank early in the morning then cut off ten min later . Then it hard to started again. Please help me anyone

87 of 87 people found this helpful.
20

1999 dodge ram 2500 diesel starts then runs then cuts out dies new filter new batteries cleaned maps and I.A.T. will remove bed and check ground and lift pump I think it's pump dealers want too much money will do it myself

2 of 2 people found this helpful.
70

I have a 1988 e350, 351 engine size. The truck runs rough high low then after awhile stalls while idling. If I drive alongs I don't come to stop it won't stall. We tuned up the truck, then changed map sensor, fuel filter, all the vacuum hoses, the air fuel sensor, but have changed the wire harness believe it's the throttle position sensor. The truck ran fine for awhile then started to act up. Need some ideas

7 of 7 people found this helpful.
30

J1988 did you figure out the problem with your truck ? Mine is doing the same thing

3 of 3 people found this helpful.
70

Try your timing. After changing out parts our timing was off. We also had to change the distributor. Seems to be ok now but we will let you know it's only day 4 after being fixed.

80

Shoot it had starting problem with my 94 f 150 5.8 spent a pile of money ready to throw in the towel. Shoot it

8 of 8 people found this helpful.
10

I have a 1990 Ford F-150 pull my hair out trying to find out why rough idle runs rich stalls vatic idle wouldn't stay running change the throttle position sensor no effect change map sensor no effect check IAC motor cleaned still no effect finally unplugged coolant temp sensor and map sensor the new one truck crank cold no flooding run smooth low idle let it warm up run decent end of story bad coolant temp sensor

1 of 1 people found this helpful.
20

I have a 2006 ford expedition I change the starter I change the fuel pump n the fuel filter to where it will started but as soon as I hit the gas it cut off can somebody okease tell me Wats wrong

2 of 2 people found this helpful.
20

i have a 1988 ford f150 5.8 i haveing a problem. i can get in the truck start it runs great i can step on the gas hard all the way to the store.when i get back in the truck and try to do the same thing.the truck want to die out at 35. i let off the gas and the truck dies down and coe right back up but i cant ove por press on the gas .or it will die

2 of 2 people found this helpful.
10

My 1985 F-150 5.8L runs good when i first crank it and start driving and get it good and warm up. And when I get to a stop light it dies and will not crank back. And I'm getting towed home. It cools down it starts right up. What is going on here?

1 of 1 people found this helpful.
115

Gurudjjk8, your problem sounds like a crank sensor issue to me. Test the resistance cold and then after it dies and compare readings with the specs I'm sure they're easy to find

my 1981 f350 engine start but when turn loose it die

I try starting serval but as soon turn loose of key it dies

115

GuruZXSF5 that sounds like it could be the ignition switch that is at fault. Its the electrical component right behind the key/tumbler mechanism, when you turn the key there's a little finger on the end of it that turns the switch. One way to test my theory is to get a remote starter switch from the parts store, hook it up to the starter so it will engage the starter, turn the key to accessory (one click before start) and hit the button to start the truck. If it doesn't start the ignition switch is your problem, if it starts and dies like it's doing then you have a different problem, probably still ignition related

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