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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

wierd idling problems

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Old Aug 8, 2010 | 10:29 PM
  #1  
75Three90's Avatar
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From: Santa Fe Tx
wierd idling problems

i have to hold the pedal all the way to the floor to get it to start then itll idel real high and for about 5 minutes then itll idle fine and runs perfect. The TPS and somthing else on the throttle body has been changed but i cant remeber what its called its on the throttle body oh yeah its a 1993 4x4 5.0 with a five speed
 
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Old Aug 9, 2010 | 01:31 AM
  #2  
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f-150_1993
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From: TX
ya must be talking about the IAC (idle air control) mounted on the throttle body.



Have you given her a tune-up?

Guys btw especially newbies... I have some sensors labeled and with pics that you can use to identify parts on your 302. Just stop by my profile
and check out the parts & diagrams album
 
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Old Aug 9, 2010 | 01:43 AM
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From: Santa Fe Tx
naw james thats been chaged i just couldnt remebr what it was called my dad thinks it might be the throttle body gasket since the guy made a home made gasket for it
 
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Old Aug 9, 2010 | 12:26 PM
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f-150_1993
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From: TX
It looks pretty beat up or what?
Nothing seals like the proper gasket.
 
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Old Aug 9, 2010 | 12:45 PM
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From: Santa Fe Tx
it looks like it ripples
 
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Old Aug 9, 2010 | 12:49 PM
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f-150_1993
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So ya think air might be entering thru the rippled gasket?
Is your throttle body clean?
 
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Old Aug 9, 2010 | 12:57 PM
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From: Santa Fe Tx
yeah its clean but i think its sucking air around the gasket
 
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Old Aug 9, 2010 | 08:40 PM
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hotstang
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Any codes

My 5.0 started acting like this and it turned out to be a bad coolant temp sensor to the computer.
 
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Old Aug 10, 2010 | 09:40 PM
  #9  
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From: Santa Fe Tx
ah thanks man
 
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Old Aug 17, 2010 | 09:53 PM
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From: Rehoboth MA
could be a fuel pump, or believe it or not even an ignition switch. my buddy has a 302 that would do the exact same thing. we did the pump, didnt do anything. did relays and well, it was the ignition switch suprisingly
 
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Old Sep 2, 2010 | 09:36 PM
  #11  
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From: Santa Fe Tx
thats wierd lol
 
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Old Sep 2, 2010 | 09:38 PM
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f-150_1993
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so have you fixed it yet?
 
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Old Sep 2, 2010 | 09:46 PM
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From: Santa Fe Tx
got the clutch put in it today got some decent rims and tires on it test drove it then parked it,, now its burning real rich and idel high on start up then itll idel fine and wont run rich
 
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