Manager Forum

Customer replaced battery over the weekend, and ever since, once the car warms up, whenever at an idle it stalls.

No codes, does not have an idle air control valve (which when customer called, is what we thought it would be). Checked for anything customer may have done, by mistake, all looks good.

Any thoughts?

Thanks.

(His mother-in-law was her for an oil change yesterday and said he is "an idiot, know-it-all" and she told him to have a professional replace the battery.)

No answer here from a tranny guy just a question. How does it control idle with out an IAC? Does it have a stepper motor?

wbuxton wrote:No answer here from a tranny guy just a question. How does it control idle with out an IAC? Does it have a stepper motor?

Okay, I'm not a tech here, so I just asked the tech... He said he worded it wrong for my first post (not the first time he's done that to me), he says it's an electronic throttle, with no cable, not the typical Toyota IAC.

I assume there are no codes? Sounds like you lost the calibration on the idle controller, much like the VW throttle adaption. Perhaps there is a calibration procedure.

We haven't looked into that, as of yet, but one thing we were told was that it has to be driven, and driven, and driven. I've been doing that when I get a chance and it's definitely getting better.

My business partner (and oh do I use that term ever so loosely, as I expected a partner would actually work) killed his battery in his Denali a few weeks ago. He said it has the same kind of idle control, and he was having all kinds of trouble, but the more he drove it, the better things got, until everything was back to normal after about two weeks.

Probably needs the throttle plate cleaned.