High idle

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.

4 Replies

JACOBANDNICKOLAS

MECHANIC
108,170 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

KHLOW2008

MECHANIC
41,815 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

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

JACOBANDNICKOLAS