Idle Assistance

[Woppy V]

Recently, something odd has been happening when I stop. With the engine warmed up I am idling at 900 rpms and when I come to a complete stop at a stop sign or light every so often my idle will spike up to 1,200 or so. When it does that my ST will jolt forward because I don't have enough preassure on the brakes to keep it still which has me concerned about hitting someone in front of me. When the spike happens I can hear something engage under the hood and when it disengages the spike calms down. Is my Idle to high? Any ideas what is happening here?



Woppy

 

[Tom Schindler]

Turn your HVAC controls to off and see if it still happens.





Tom

 

[Chris Kulbaba]

I have this same problem...



Its like a click, I think it is the HVAC, but is that normal?



Mine actually goes from 900 to 1200 then to a stall once in a while... Im currently trying to find out how to fix this. I actually took off the battery cable for a while today, and re-did some of my stereo wiring, and it hasnt stalled out yet, so maybe this is a fix for it?



Whatever it is, its annoying!

 

[Tom Schindler]

Its like a click, I think it is the HVAC, but is that normal?

It is normal for the HVAC to make a clicking noise. I recomed cleaning your throttle body and cleaning your ISC Valve.



Tom

 

[Todd Z]

Yes thats the High idle kicking in when your AC compressor inguages...

It is slightly normal, You can adjust the throttle body a little and see if that helps...



I wish my truck would idle that high, I have to re flash my truck to do it...

Mine sits around 500 RPM and it sucks..

Todd Z

 

[Woppy V]

I will clean the throttle body and IAC tommorrow. Anything out of the normal always concerns me and the extra gas I burn is a noticeable to the ole bank account. But as long is this is 'normal' I feel better about the situation. Thanks all.



Woppy

 

[Chris Harris]

i have the same problem...



i have no solution for it either...im not much of a mechanical genius so i plan on just mentioning it to the worker next time it needs maitenence.