need help asap
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Joined: Jan 2010
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need help asap
my 89 f 250 custom starts for about 15-45 seconds then cuts out like theres a vacum leak some where. i checked all the vacum lines and didnt seem to find a leak. what could be wrong
thanks wizzerd
thanks wizzerd
Post Fiend
Joined: Mar 2002
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From: Bonita Springs FL
Engine, transmission, miles, recent repairs or work you did, when did the problem start, is it doing anything else out of the ordinary, any noticeable drop in mileage, etc. Basically anything that will help us diagnose the problem.
Elder User
Joined: Feb 2007
Posts: 690
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From: Madison Ohio
Lets start with your motor What size it is?, explain better how it cuts out. Does it just shut down, sputter to a stop, What happens if you try to give it some gas, ( in other words does it only do it a a idle or can you rev it up to 1500 or so rpm and still cut out.
Will it start right back up? or do you have to let it sit for a while.
check for codes, If no codes put a fuel pressure gauge on the rail and see what kind of pressure you get while its running, and what it does as the motor dies.
Will it start right back up? or do you have to let it sit for a while.
check for codes, If no codes put a fuel pressure gauge on the rail and see what kind of pressure you get while its running, and what it does as the motor dies.
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ok lets see its a japser 5.0 v8. im not suire what the tranny is its a new truck to me. its got 14000 miles on this motor, i no the tranny was rebuilt a coup[le months ago and the problem started after i brought it home and had it sit for two weeks. but thwe guy selling it had it sit for 3 months and it started right up and it ran fine. i did but replace that dash.
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and it just cuts out no sputteriung anf it has to sit for about a minute and a half berfore it will start again
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Post Fiend
Joined: Mar 2002
Posts: 19,402
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From: Bonita Springs FL
I wonder if the PCM is losing the signal from the PIP sensor when it warms up because of a loose wire or bad connection inside the distributor. You might or might not get a code for that, but you should definitely start with checking the codes. See fordfuelinjection.com for more info on pulling codes.
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Joined: Jun 2004
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From: Central NY
Originally Posted by Wizzerd
it has to sit for about a minute and a half berfore it will start again
I'm thinking you have no spark and its time to replace the ICM.
Post Fiend
Joined: Mar 2002
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From: Bonita Springs FL
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