Question about 2001 Ford Explorer Sport

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I have a 1989 f150 EFI I just purchased, my question is when you try to start it, it act like a cold carburator it dies, you have to goose it and rev a little while once it warms up it idles great and runs great but once its shut off for a couple of minutes its hard to start again. I went ahead and did a tune up but it still starts hard

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  • rockvaughn3 Aug 06, 2008

    1. thanks for answering i did change the plugs also



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I had a 1989 F150 V8 5 speed for 15 years. The TPS is located on the underside of the throttle body and I feel it would get cooked by the engine heat. I replaced it several times, but the symptom was that it would stall while turning corners. An easy check is if the RPM's decrease when you turn on the AC, its not doing its job.

Posted on Sep 05, 2008

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it could be the idle air control sensor/solenoid on the throttle body if its TBI, its near the air intake on the TBI , also near the throttle position sensor, try pulling the wire harness off of the idle solenoid and starting it, if it does the same thing, that might have been it, theyre expensive new but we got the whole TB at junkyard for 20.00
if it isnt that I suggest getting a code reader or taking it in so you dont waste money..

Good Luck


Posted on Aug 06, 2008

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Sounds like your tank pump may have failed. this vehicle has two and one is on the frame. It can **** gas through the old one.

Another possibility is the fuel line has a leak in it.

Did you change the spark plugs in the tune up?

Posted on Aug 06, 2008

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