i thought that i had this damn thing fix and i could stop turning wreches for a couple weeks but i guesse not... anyway most of the time it starts up and idles just fine... right about 500 rpm... then i put it in gear drops a tad but no big deal... when im backing out of my driveway and tap the gas in revers when i come to a stop to put it in drive the idle drops to like 400 and feels like its going to die... not sure if its a tuner issue or what the deal is.... let me know what could cause this

Thanks

 

my dad has the same issue with our 01 tahoe ive heard you need to perform an idle relearn

https://www.performancetrucks.net/fo...d.php?t=374639

i havent tryed it yet but i plan to and hope that it works

 

Remove and clean your IAC (Idle Air Control). Mine started to idle erratically and when I pulled the IAC it was covered in crud. Cleaned it up and the idle problem went away. I also did the idle relearn right after cleaning it.

 

where is the IAC located at

 

nah idle relearn didnt work for me

 

mine runs like a top when its cold.... just when it warms about half way to normal running temp it starts to lose idle and and starts getting really rough

 

the idle relearn didnt work for my freinds truck eather

 

It is installed on the top driver's side of the Throttle Body. You can remove just the IAC or you can pull the whole TB and clean everything. It is a black plastic part.

 

i dont think the IAC is the culprit in my case.... worked fine on the 5.3 i doubt that in a week the thing got totally fucked up

 

Could still be worth checking. Mine was fine for about 80K and then the idle just started acting up all of the sudden. Not saying it is the problem but you could pull it in less than a minute and know for sure.