RPMs dip when AC is on
#1
RPMs dip when AC is on
I have a CLS6 and everytime I have the AC on, then press in the clutch while slowing down the RPMs seem to dip very low (about 4-500 and back to normal). It only does is when I run the AC and never has stalled. Could it possibly be the IACV I hear everyone talk about being dirty or faulty?
#2
Whats up with RDX owners?
iTrader: (9)
It could be slightly dirty. Does it do that when the AC is off?
#4
Whats up with RDX owners?
iTrader: (9)
Doubt its the compressor.
If you turn the steering wheel at idle, does the idle drop too?
Its been awhile since I drove with the a/c on at idle, so it may be normal.
If you turn the steering wheel at idle, does the idle drop too?
Its been awhile since I drove with the a/c on at idle, so it may be normal.
#7
Thanks for the replys... I don't use the AC too much either, just started to get a lil hot in the northeast. Only problem is it gets on my nerves while driving in traffic, feeling like it wants to conk out every time I push the clutch in. Maybe ill start taking the scenic route home w the windows open.
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#8
i believe what compensates engine speed when a/c is turned on is activated by a vacuum hose... do you see any loose hose by throttle body? hear any hissing sound? does it idle a bit up and down if a/c not engaged?
#9
Other than when the AC is on, it idles and drives absolutely perfect. The only thing I thought it MIGHT be is there is more drag on the motor with the AC, right? So, maybe before I push the clutch in it is used to the extra RPMs and killing that extra power may drag it down. I don't know maybe Im just making excuses for it now.
#10
Whats up with RDX owners?
iTrader: (9)
It could just be the parasitic drag on the motor. It could also be the pressure switch, but since the RPMs rebound to normal, I doubt it.
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