Question about 1993 Ford F150 SuperCab

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F150 floods when cold, runs sluggish when warm

1993 f150, 5.0, automatic, 2wd, 170000 miles. engine light came on last week and started running real rough when first started after cooling down. then would run sluggish when warm. so i replaced oxygen sensor, map sensor, any help appreciated,,,,

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  • Sam Shamblin May 11, 2010

    When you check the diagnostic code using an OBD code reader, what code comes up attached to the engine light?

  • Anonymous Mar 23, 2014

    everything has been replaced except the computer had a used one put in ran good for awhile then started the same thing over


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At that many miles its do a timing set

Posted on Mar 05, 2009

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2001 jeep grand Cherokee every time I start it Idles rough and cuts out until warm and if heater is turned on when cold it cuts out really bad and dies. but after completely warmed up runs fine. (?)

ok no engine stated?
if gas engine, ?
I bet never tuned-up up in decade,right?> that gets 99% here.
but it can be far more complex, not guessing,,
what if , the ECT reads wrong.
and the PCM thinks you are in ALASKA,and you are in key west,FL..
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all EFI cars do that ,everyone, like that.'

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fix MISFIRE COLD that is the problem.!! real.

and new spark plugs top that list????
a rich engine needs more spark, and on HILLS

and scanning the ECT.
does ECT read correctly first thing in morning before starting engine
yes ECT can be scanned keyon, not started.

correct means if last night was 40f, the ECT is 50f in morning
or lower. say 41f.
-20f wrong, 0f wrong , got that? not blow average of last nights
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the air cleaner can be packed.up
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misfiring cold
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best is a tuneup ,pray, and work form there.
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Reduced engine power warming came on yesterday, after driving in extreme cold temps, idled rough and the. started back up fine after sitting a few minutes. Drive today, in cold temps again, and drove... ball park guess on this is just a tune up. The engine light is usually showing a misfire. If the plugs are bad then the cylinder is not igniting the fuel and it is flooding out. With what is here this makes sense to me. Let me know what it does turn out to be.

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1993 f150 5.0 automatic 2wd, runs rough and floods when cold.

sounds like a 'simple' vacuum leak... that age and mileage you probably have some very dry rubber lines...

Feb 22, 2009 | 1993 Ford F150 SuperCab

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