I guess is my turn ! My 07' dak has almost 38k miles. About 3,500k miles ago i changed the oil, plugs and got a K&N drop in filter and the only mod i got is the Borla exhaust.

Ok, now to the problem. A couple of days ago i notice that when my truck is sitting on park at idle, the idle drops below 500 rpms and it almost stalls. When is on gear and driving it's ok, no problems. It's only at idle and in park.

Normally she idles at 700 rpms: rain, shine, hot or cold it has always been the same since i got her. I don't know if it's the throttle position sensor or the pcv valve or what! I have checked for vaccumm leaks and nothing and i got no codes or check engine lights or warning lights . Nothing! I'm stumped!

Any suggestions will be appreciated !!!!

 

when i was messing with mine yesterday, i was pulling and plugging lines for the pcv and the evap system, at it was makilg the idle do all sorts of strange things including a low idle with a large vacuum leak, IDK seems backwards to me, but i guess it could be any one of thoes things

 

pull the IAC and clean it? In gear the computer increases RPM's cause it's under load so that may explain why it does not die while in gear....

 

+1 for cleaning the IAC...

 

Do you use a tuner? When I used the SC Cortex I was running the 91 Octane tune and the wife put in 87 and it really messed with the idle. With the SCT I can adjust my idle RPMs, just curious.

 

No! No tuner for me!!! Can't afford it!!!

 

well, thats your problem! lol

 

Thanks for your sympathy! I was hopeing for a "here dakota_raven, you can have my superchips tuner, i want you to be able to program your truck because you are a great guy and i don't need mine" kind of response! lol....

 

d$mn.....I already gave mine to someone else to try it out.....I can add you to my list, I rent it for $100 for a 1 week trial (3 more and it has paid for itself!!! lol)

 

You can adjust the idle with the 3865 too