1986 Ford F-150 stalls after driving on a hot day

Tiny
WILLYDEAN
  • MEMBER
  • 1986 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
I have a 1986 ford f150 with two gas tanks its fuel injected on a hot day I can trive to town turn it off for about 10min come back and it won't start and stay that way for 15 to 30 min thin it will start wright up this has been goning on for about 5 years just in the summer it runs great other than that and it don't do it all the time help please I love my truck I take good care of it
Sunday, May 9th, 2010 AT 11:14 AM

4 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
See my profile, I am familiar w/ '86 T-Bird, If you are throttle body injected. When this occurs again, if at all possible have a can of starter fuid and an "inline spark tester" handy (or do the old fashion way)

Shoot a shot of starter fliud in throttle body----see if it at least "WANTS" (or does) to fire up (A FUEL DEPRIVATION PROBLEM)

AND/OR

Test for spark (IGNITION PROBLEM)

Come back with results

Love, Turddog
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Monday, May 10th, 2010 AT 12:50 AM
Tiny
WILLYDEAN
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  • 2 POSTS
It will fire off long enough to burn off the ether and that's all and the ignition parts have been replaced I went through that a wile back and most of it with factory replacement parts
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Monday, May 10th, 2010 AT 4:10 AM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
Do you have fuel pressure during hiccup?

Can you hear the fuel pump come on (if real quiet, maybe have someone actvate key several times while you listen at open fuel cap)

If you do not hear it, maybe "THUMP" the Fuel Pump Relay(s)---may be more than one--See if it/they start the pump into working. Do one at a time, you may locate the one that is causing the problem. Without Mega testing or unnecessary replacment.

A self serve salvage yard may supply you several "extra" relays/stuff to test with (all Fords may possess same stuff in similar years). Many times I can walk out with a lot of nothing stuff for less than $5.

You can always replace with NEW, once located.

Respond

Love, Turddog
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Monday, May 10th, 2010 AT 4:21 PM
Tiny
WILLYDEAN
  • MEMBER
  • 2 POSTS
Done that a month ago, some guy said it could be the air temp sensor on the intake I ant done that think that mite be it, and I have a pull-a-part 3miles down the road and thanks for the help
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Tuesday, May 11th, 2010 AT 4:27 AM

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