Author Topic: Why does my idle drop when ac compress turns on?  (Read 4550 times)

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Offline 1987GN

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Why does my idle drop when ac compress turns on?
« on: October 08 2013, 10:25:36 AM »
any ideas?

Offline Steve Wood

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Re: Why does my idle drop when ac compress turns on?
« Reply #1 on: October 08 2013, 11:28:38 AM »
Is the IAC changing to compensate for the additional load of the compressor?
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Offline daveismissing

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Re: Why does my idle drop when ac compress turns on?
« Reply #2 on: October 08 2013, 02:01:46 PM »
What chip?
-Drain plug by Earl Brown, custom oil pan by Rich's Auto

Offline 1987GN

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Re: Why does my idle drop when ac compress turns on?
« Reply #3 on: October 08 2013, 03:38:59 PM »
TT 93 Chip...gonna clean the IAC tonite.

Offline Steve Wood

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Re: Why does my idle drop when ac compress turns on?
« Reply #4 on: October 08 2013, 04:14:05 PM »
Do the iac counts change when you turn the compressor on?


Steve Wood

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Offline 1987GN

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Re: Why does my idle drop when ac compress turns on?
« Reply #5 on: October 08 2013, 09:38:42 PM »
Steve,

The IAC #s do climb BIG time when the compressor comes on...So?

Offline Steve Wood

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Re: Why does my idle drop when ac compress turns on?
« Reply #6 on: October 08 2013, 10:08:35 PM »
so the iac should be working to provide more air...Perhaps cleaning will help make it effective
Steve Wood

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A lot of broken parts does not make you a racer; it makes you a slow learner.

Offline 1987GN

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Re: Why does my idle drop when ac compress turns on?
« Reply #7 on: October 08 2013, 10:37:58 PM »
I just bought a new one...$35..  See what happends.   Thanks John

Offline Steve Wood

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Re: Why does my idle drop when ac compress turns on?
« Reply #8 on: October 08 2013, 11:50:00 PM »
should read just like the old one.

be sure not to over tighten it when you screw it back together after cleaning the passages
Steve Wood

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Offline 1987GN

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Re: Why does my idle drop when ac compress turns on?
« Reply #9 on: October 11 2013, 09:13:41 AM »
New IAC did the trick....idles great!  You can hear it idle up when the compressor turns on also!   :)

Offline Steve Wood

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Re: Why does my idle drop when ac compress turns on?
« Reply #10 on: October 11 2013, 09:44:41 AM »
guess it was sending commands but the old one was fried inside...glad it did the job!
Steve Wood

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A lot of broken parts does not make you a racer; it makes you a slow learner.

Offline 1987GN

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Re: Why does my idle drop when ac compress turns on?
« Reply #11 on: October 11 2013, 10:04:01 AM »
 :cheers: Thanks Steve !

 

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