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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

high idle

 
  #1  
Old 03-06-2011, 12:46 PM
buffy.mike
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high idle

1 have a 91 ford f150 it is idleing at 2000 rpm if i disconnect the idle control module it idles at 500 rpm i checked for air leaks ive taken off the throttle body hoses and hold my hand over the openings and the truck will die ive read on other post that this means no leaks ive put on a new idle control module cost 78.00 no change but cannot return electronic part has anybody got any ideas im lost
 
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Old 03-06-2011, 01:06 PM
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You should have looked here first and saved yourself $78: Ford Fuel Injection How To Run a Self-Test
 
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Old 03-06-2011, 06:06 PM
buffy.mike
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thank you very much
 
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Old 03-06-2011, 06:08 PM
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on there left side of your throttle body there is a rubber nipple make sure thats new an tight second the idle control modual is on the right side of it warm your engine up or drive it for about five minutes un plug the modual. before you unplug note where its idling if its around 2000 like you said un plug it it should drop down between 500- 900. wich is where it should be. An instead of buying that new wich had done you coulda unplugged it an tested it like this or drove like this the only difference is in the mornings or when you first start your truck it might wanta die at first. because you unplugged the iddle control. but rev it up just a little for like 20 seconds an she'll idle just fine.
 

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