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302 running problem

Old Sep 16, 2007 | 09:01 AM
  #1  
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302 running problem

I have a 1987 Ford conversion van with a 302FI and auto OD tranny with some slight running problems, over she runs good but a few things. When cold starting the engine usually stalls once or twice before idling down, also when giving it gas to accelerate it will sometimes hesitate and octane knock before downshifting out of overdrive into drive. She only has 70,000 miles on her and has never seen a winter, any ideas would be sweet.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>

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Thanks, Jim S.<o></o>
 
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Old Sep 16, 2007 | 12:40 PM
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I'd guess the throttle position sensor is going bad. It's located on the underside of the throttle body. It has to be removed to change it.
 
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Old Sep 16, 2007 | 04:32 PM
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could be a lot of things........hard to say from NH.......get it hook up and see whats going on.

could be fuel pressure
TPS as Baddad457 said
coolant temp sensor
 
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Old Sep 16, 2007 | 08:41 PM
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From: Germantown, MD
My truck used to stall a lot. It also has the 302 EFI. I removed the throttle body, and cleaned the hell out of it with carb cleaner, and brakleen. I just kind of let it hang by the throttle wires, and cleaned it all out where it meets the intake manifold, and in each TB etc... I also removed the Idle Air Control unit mounted on the side of it. Just unplug the device, remove it, and clean it allllllll out. Do all this first, and see if it helps...
 
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