idle aggrivation!!!

[Tncoalroller88]

having a little trouble with the idle of my truck it runs fine and it starts fine its just the idle of it.. when the truck is dead cold it idles like it should but as soon as it warms up it runs sorta roughly and idles up and down bout 200 or so rpm up then back down kinda like when the ac or somethin does when it kicks on only it does this with nothing on at all anyone else had this problem icp was cleaned not long ago and re sealed thinking maybe icp but it doesnt have any oil in it im stumped

 

[neverkickn]

You mean the ipr was cleaned? Have you unplugged the icp sensor to see if it changes the idle?

How many miles are on the injectors?

 

[Tncoalroller88]

yea man sorry yes i cleaned the ipr but i never took it apart and yea i unplugged it idle still feels pretty much the same after unplugging i just dont get it

 

[neverkickn]

Disassembling and cleaning an ipr isn't really a fool proof way of ruling out an ipr issue. When you unplugged the icp sensor did you do it while it was running? If so, did the truck make a different sound, or did it just continue to idle out just the same?

How many miles are on your injectors?

 

[Justin@DP-Tuner]

yea man sorry yes i cleaned the ipr but i never took it apart and yea i unplugged it idle still feels pretty much the same after unplugging i just dont get it

When the idle feels the same that usually means the ICP sensor is bad.

 

[Tncoalroller88]

yes i did unplug it while it was running and no sound pretty much stayed the same but if the icp was bad why would it idle rough just when the engine warms up ?

 

[neverkickn]

yes i did unplug it while it was running and no sound pretty much stayed the same but if the icp was bad why would it idle rough just when the engine warms up ?

Why do you think I keep asking you how many miles you have on the injectors?

 

[Tncoalroller88]

lol truck only has about 94000 miles on it and its a 2000

 

[neverkickn]

You might start with an icp sensor and see where you go from there. It really is a matter of trial and error without a way to scan the truck.

 

[Tncoalroller88]

my buddy has an ae scanner it comes up with no codes what so ever how else would i see if the icp or ipr are bad

 

[Justin@DP-Tuner]

yes i did unplug it while it was running and no sound pretty much stayed the same but if the icp was bad why would it idle rough just when the engine warms up ?

Well when the ICP sensor goes bad it usually is leaking oil through it. It could be that when the truck warms up the oil thins out and is able to leak through. A HPO leak will definitely make the truck run different.

my buddy has an ae scanner it comes up with no codes what so ever how else would i see if the icp or ipr are bad

A lot of times there will be no code when the ICP sensor is bad.


On another note, I am having a problem similar to yours. But my idle does not change by 200 RPM's. My truck just shakes when warm LOL