High idle

Tiny
BABCAKES2002
  • MEMBER
  • 1996 ISUZU RODEO
  • 150,645 MILES
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.
Wednesday, August 31st, 2011 AT 3:03 AM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
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.
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Wednesday, August 31st, 2011 AT 4:19 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
I agree with Jacobandnickolas about the IAC.

Did you adjust the base idle?
Did you check the coolant level?
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Wednesday, August 31st, 2011 AT 6:06 AM
Tiny
NSP4635!
  • MEMBER
  • 2 POSTS
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
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Tuesday, January 17th, 2023 AT 3:54 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

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

Take care,

Joe
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Tuesday, January 17th, 2023 AT 6:27 PM

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