1991 F150 runs for ten minutes then shuts off will not start again for about 1 hour

Asked by Mar 13, 2012 at 09:59 PM about the 1991 Ford F-150 XLT Lariat Extended Cab SB

Question type: Maintenance & Repair

6 Answers

110

Not really sure but this can be caused by electrical or fuel problem. So basically. If it eleectrical check spark plug wires and spark plugs. If its fuel issue, then check fuel filter, fuel valve.

685

Could be the ignition module that's attached to the distributor they they will cut out when the engine gets warm and then after it cools down they will restart and run till they get hot again.

9 out of 9 people think this is helpful.
15,360

Back in the 70's my souped up grand torino has the exact same problem except it took about thirty minutes for it to shut down. It would restart after about fifteen minutes. An old retired mechanic has a simple check. He poured a bottle of water over the "powerback" to cook it down and it immediately started right up. A bold on tix.

1 out of 1 people think this is helpful.
165

i would bet with Troy on this i had one do the same. and bad plug wires can also be hard on that little piece of $70 junk. i also had one of the little hall effect pickup coil on the gear inside the distribtor do the same stuff when it was really hot or working hard. but i think your distributor is newer and doesnt have one.

1 out of 1 people think this is helpful.
25

did u try to replace the alernater and check ur distrubuter and plugs?

Your truck has two temp sensors.. When the two wire sensor fails the ECM default is -31 degrees. The truck will run so rich it wont start after its warm. Pull the codes if the temp sensor is listed that's your problem and remember you need the two wire sensor.

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