High idle

1996 ISUZU RODEO
150,645 MILES
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BABCAKES2002
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I just replaced the IAC motor and drove it for about 1 hour and then 3 hours later drove it for 2 minutes down the road and turned it off to go intside and 10 minutes and then drove back home when I turned off A/C the idle went high again. What is wrong now. I thought that would fix it. Hope you can help.
Aug 31, 2011 at 3:03 AM
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JACOBANDNICKOLAS
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It sounds like the IAC is still not working properly. Check wiring to it to make sure nothing is damaged or corroded. Also, you may have gotten a bad one, so you may want to take it back for a new one again.
Aug 31, 2011 at 4:19 AM
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KHLOW2008
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I agree with Jacobandnickolas about the IAC.

Did you adjust the base idle?
Did you check the coolant level?

Aug 31, 2011 at 6:06 AM
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NSP4635!
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I had the same problem with my 1998 Isuzu rodeo 3.2l finally replaced IAC and had the same problem it was week later with a lot of digging into different sights all I had to do is unhook my battery for a little while to reset everything now it runs fine
Jan 17, 2023 at 3:54 PM
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JACOBANDNICKOLAS
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Hi,

Thank you for that information. It will help others in the future.

Take care,

Joe
Jan 17, 2023 at 6:27 PM