Quote:
Originally Posted by suss6052
I haven't noticed a difference in idle between a/c on and a/c off at idle with a foot on the brake, but idling in park with the foot off the brake seems to be about 680 rpm target idle with the DCT at least vs the 750 with the foot on the brake with or without the a/c on.
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It has just been the last few weeks that it has been cool enough here to turn off the A/C. So I just noticed it. That is in gear, foot on the brake at idle and I don't remember at what rpm but 680 to 750 sounds about right. It picks up about 50 to 100 rpm when the A/C compressor comes on. So I would say at 680 it is a little rough and at 750 it is smooth.
The other thing I notice is the rough idle is not consistent, it seems to modulate a little.