Idle problems driving me nuts!

[tmv]

Just a thought: clean the Idle Control Valve and throttle body.

[TEMA]

i too also have the same problem with my 3.0i 2004 11200 miles on the clock. somehow i think the transmission is the culprit of all of this. In my car Neutral / Reverse / and Park don't trigger the irritating idle but as soon as i move the shift to Drive the car begins to vibrate. Now im thinking the transfer case? maybe / tranny itself? maybe I really just hope that someone would point me to a solution.

[DrewN209]

Throttle body has been cleaned and I'd love some advice on the idle control valve ... Is there one on the 4.4i ? I searched on if leaning would help and how to and it all related to the 3.0 and I couldn't seem to find where it is on realoem.com

[TEMA]

Originally Posted by DrewN209

Throttle body has been cleaned and I'd love some advice on the idle control valve ... Is there one on the 4.4i ? I searched on if leaning would help and how to and it all related to the 3.0 and I couldn't seem to find where it is on realoem.com

don't know where and if theres an ICV on a 4.4 but i've cleaned mine and nothing no difference in idle.

[blktoptrvl]

Originally Posted by DrewN209

I ran a tank full of techron followed by a tank of seafoam my last 2 tanks... and in total I've probably ran about 5 or 6 cleaners through... I'm not against throwing another one in there if it fixed yours. You had the same problem where the ac would fix the rough idle as well ? Am I crazy thinking the idle at 525 is just too low ? Thanks.

Turning on the AC would boost the idle speed a little and smooth the idle. I believe my idle is at about 700 or so.

[DrewN209]

Thanks... Yea my idle is barely over 500. When I turn the AC on its jumps to about 650 or so and gets a lot smoother. Can you manually raise the idle ? Possibly an Indy or dealer could just override and turn the idle up a little ?

[killcrap]

Originally Posted by TwinTurboGTR

Very good Drew,
Do not start chasing the problem because it won't solve anything. There are a lot of people on here; and I have done it myself, told the forum here, left and said "Damn, now I'm chasing a damn problem by throwing parts at it!"

Anyways, as far as the rough idle, it sounds like it has to do with the X breathing or emmissions. I would check to see the throttle body and look at that butterfly plate. If it is covered in carbon, that plate may have a hard time properly opening and closing. Carbon may be covering the plate, blocking air flow when the motor is in idle. If it is covered, hit it with throttle cleaner. I've done it on my X 4 times and no problems. You might trigger a CEL but it goes away after a few hours of driving. And emission wise, check the ERG valve a check to see if the valve is sticking, de to carbon build up. Anyone want to concur?

At least these things don't cost any money, well besides the $6 on the cleaner, and $9 for a 6 pack of bud???

the throttle body has no effect on this vehicle when it comes to idling, it is solely used for start up, failsafe and to maintain a 50mbar vaccum for emissions.

Originally Posted by DrewN209

Thanks... Yea my idle is barely over 500. When I turn the AC on its jumps to about 650 or so and gets a lot smoother. Can you manually raise the idle ? Possibly an Indy or dealer could just override and turn the idle up a little ?

the idle on the ME9 engine management can be increased by 50rpms, a service function is available to do so

[DrewN209]

Originally Posted by killcrap

the throttle body has no effect on this vehicle when it comes to idling, it is solely used for start up, failsafe and to maintain a 50mbar vaccum for emissions.



the idle on the ME9 engine management can be increased by 50rpms, a service function is available to do so

Thanks... by 'a service function is available' i'm assumming this is something that only a dealer can accommodate ?

I hope they will help me out, I have a feeling I'm going to get the no codes, no problems rant...

[TEMA]

Originally Posted by DrewN209

Thanks... by 'a service function is available' i'm assumming this is something that only a dealer can accommodate ?

I hope they will help me out, I have a feeling I'm going to get the no codes, no problems rant...

basically anyone with g1 software could do it. i pretty sure but i dont know who has what so the dealer is a likely option and if you do figure this out please report back.

[swipe]

Hi guys I have the same problem as Drew my 4.4 just about idles around 450-550 rpm, with the AC on it improves the rpms but sometimes cuts out and then restarts after I've left the ignition on for a few seconds.
Really starting to get to me now so i think it will be of to my local indy to see if they can find anything.