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Author
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Topic: idling problem
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Roush3
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Member # 2638
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posted
 
 
I have a 96 gt mustang my problem is with a intermitten high idle problem. this happens when i come to a stop. the idle shoots up to 1500 for about 6-7 seconds and then drops back down to about 800. it also has a problem rpms hanging when the motor is reved. Ford diagnosed the problem as a intake manafold vacum leak. i replaced the intake and still have the same problem. Next it was diagnosed as a bad IAC valve, new IAC and still the same problem. Motor was vaccum leak tested by ford and showed no leaks. the next step was replacing the PCM, and still the problem. If anyone has any input let me know.
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2002 Roush stage 3
Posts: 49 | From: Fremont | Registered: Mar 2003
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MoostangGT
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Member # 2894
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posted
Have you done any mods to the car?
How long has it been happening?
Minor things like checking the voltage on the TPS, cleaning the throttle body, IAC, and EGR on stock cars seem to take care of those issues.
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Sabrina aka The chick in the cow print pants.
Posts: 106 | From: Redding, CA | Registered: Jun 2003
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Wildfire532FB
CAFords OG
Member # 1482
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posted
What are the mods on the car? 96 was the first year of the 4.6 right? Our 98 Cobra comes with an idle motor and if that goes bad sometimes it will hold the idle up.
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68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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Stimson
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Member # 51
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posted
Can pretty much gauruntee its not the EEC. Have you tried the TPS sensor?
Posts: 2373 | Registered: Jun 2000
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95still5.0
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Member # 2994
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posted
could be your clutch or your injectors because your fuel filter is dirty.
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Abel Ibarra
Posts: 56 | From: San Jose, Ca | Registered: Jun 2003
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