IAC stays extended when cold
Champion
Joined: Jul 2011
Posts: 4,895
Likes: 35
From: Gilbert, Arizona
Lets start over
First how do you know its extended 100%
Second Im guessing you mean a 3.9 not a 3.7
#3 have you rebuilt it or cleaned out the throttle body these usually need a good cleaning?
#4 the IAC units usually don't go bad my guess the TPS is bad they go bad all the time or the throttle body is gummed up.
My TPS has needed replaced many times for Idle problems oem or quality is needed for a TPS.
First how do you know its extended 100%
Second Im guessing you mean a 3.9 not a 3.7
#3 have you rebuilt it or cleaned out the throttle body these usually need a good cleaning?
#4 the IAC units usually don't go bad my guess the TPS is bad they go bad all the time or the throttle body is gummed up.
My TPS has needed replaced many times for Idle problems oem or quality is needed for a TPS.
Last edited by 98DAKAZ; Oct 7, 2018 at 12:03 AM.
All Star
Joined: Mar 2015
Posts: 752
Likes: 24
As Heyyou said do the full reset .
Yes off brands can be a factor .
If you can ,rent scan tool an do a live data test an see what the different sensors including the map an tps is reading..12 is good on tps in idle.
Yes off brands can be a factor .
If you can ,rent scan tool an do a live data test an see what the different sensors including the map an tps is reading..12 is good on tps in idle.
Last edited by hidden1; Oct 7, 2018 at 10:25 AM.
Thread Starter
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Registered User
Joined: Jul 2015
Posts: 11
Likes: 0
Hey guys. Thanks for all the good advise. Unfortunately I ran out of time and had to work out of town. My girl needed the truck so I put it in the shop. They said they scanned the system, test-reset and relearn IAC System, cleaned the housing and replaced the air filter.
So far so good.Sounds like you guys where right on about the relearn. I will know for next time.
Thanks again!
So far so good.Sounds like you guys where right on about the relearn. I will know for next time.
Thanks again!