truck won't stay running

310

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.

16 Answers

16,600

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

80 out of 80 people think this is helpful.
16,600

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

27 out of 27 people think this is helpful.
310

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

25 out of 25 people think this is helpful.
16,600

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.

17 out of 17 people think this is helpful.
310

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?

6 out of 6 people think this is helpful.
170

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.

17 out of 17 people think this is helpful.
170

my truck run then it die what that problem

17 out of 17 people think this is helpful.
100

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.

10 out of 10 people think this is helpful.
90

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

6 out of 6 people think this is helpful.
90

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

3 out of 3 people think this is helpful.
30

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

3 out of 3 people think this is helpful.
480

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

48 out of 48 people think this is 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 out of 2 people think this is helpful.
40

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

4 out of 4 people think this is helpful.

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

40

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.

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