how do you know when the idle air control valve is bad???

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Old 07-08-2003, 12:40 PM
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how do you know when the idle air control valve is bad???

I was wondering how you know when it goes bad? What are the symptoms?
Old 07-08-2003, 01:00 PM
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Erratic or inability to idle or maybe even a consistent high idle. Why, what is going on??
Old 07-08-2003, 01:14 PM
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This morning....I came to a stop light and the cars idle dropped a little bit, it felt like it sputtered a bit. I had the fuel pressure regualtor fixed already
Old 07-08-2003, 04:00 PM
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The IAC valve also controls cold-start.. so if your cold-start idle is NOT higher than 1K RPM, then you might have an issue.

Also. check for DTC 00505 - if I am not mistaken, its the IAC error code... I get it often
Old 07-08-2003, 04:21 PM
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I just talked to my service guy.....he said the idle fluxuates up and down, and most of the time the check engine light comes on... I trust what he says!
Old 07-08-2003, 11:32 PM
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the car will rev by itself from 1k to almost 2k. I had mine replaced. also when you drive it, the car speeds up by itself too.
Old 07-09-2003, 02:01 AM
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Originally posted by allmotor_2000
...if I am not mistaken, its the IAC error code... I get it often

Speaking of which, what is the story with that. Did u get my last PM about it?











Juker008
Old 07-09-2003, 08:45 AM
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Yup P0505 is the code for a crapped out idle motor .
Jens
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