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Joined: May 2000
Posts: 702
Administrator
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Administrator
Joined: May 2000
Posts: 702 |
Originally posted by stingray454:
Check the vacuum lines going to the IAC. If there is a leak somewhere, the IAC won't have enough vacuum to do its job, and the idle will be high. There are no vacuum lines to the IAC. It is electrically operated. It is likely just the IAC sticking open. Take it off and clean it! -Lance
Lance Kinley
CEG Webmaster
95SE, "Official CEG Beater"
Quaife, SVT parts, ST200 wheels, SS Y-pipe
I perceive you to be a stand-up, rational individual...
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Joined: Jul 2000
Posts: 743
Member
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Member
Joined: Jul 2000
Posts: 743 |
THROTTLE POSITIONING SENSOR....atleast thats what my problem was (says ford but how can i trust them)i also had some loose vaccuum lines but that was just causing the car to stall not rev
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Joined: Jul 2000
Posts: 1,461
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Member
Joined: Jul 2000
Posts: 1,461 |
I had similar revving-up-by-itself problems on my '95 V6 Contour.
Replacing the TPS fixed the problem.
Brian
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Joined: Jul 2000
Posts: 743
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Joined: Jul 2000
Posts: 743 |
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Joined: Jul 2000
Posts: 1,461
Member
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Member
Joined: Jul 2000
Posts: 1,461 |
The best I could figure out is that the TPS was bad in such a way that when the throttle was at idle the TPS told the computer otherwise. Could have been caused by a faulty connection inside the TPS, specifically the ground connection--if that's lost the TPS will read 5 volts all the time.
This would cause the computer to open the idle air controller, making the engine rev higher. (The computer opens the idle air controller when you have your foot in the gas--it does this for a dashpot-type function of gradually closing the IAC when you take your foot off the gas)
Brian
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