I have an 03 5.3L in my s10. It has a cam, intake, tune. Just got the exhaust put on and now it idles high. It idles about 1300-1400 rpm. Put it in gear and it still idles real high. What do yall think?

 

TTT for the day

 

i would say its in your tune.... mine was like that also and after i got it tuned it was at 700

 

Well i called the guy that programmed my computer and he is going to go over see if he finds any thing

 

sticky throttle plate ,i just had issues with similar ,and i did have a bad tune also but that only started at 2k rpm then slowly went down.i also had the same issue with a big vaccuum off ,just my piece of mind

 

check the vaccuum lines..could be in the throttle plate too...what i did to mine to get it to idle great is unplug the IAC motor and move the set screw to what the desired idle rpm is in the tune..that way the IAC motor doesnt havent try and keep up if the the throttle plate isnt opened far enough or too much

 

I got looking at it last night, and I dont the IAC motor is working. So I am going to go get me a new one today and see how it works

 

I got a new IAC. Put it on... and back to idling high. The only thing I can do to fix this is to manually move the plunger myself. So I have it set at 750-800ish.

Another thing I noticed when i start the truck (warm or cold) i have to give it a little gas to keep it running. It will bog down the idle up a little, bog down idle up a little. Then after a few sec. its ok I can drive, idle fine. Any ideas?

 

^^^.... anybody ?