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Old 02-12-2011, 07:37 AM   #11
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Here is a different idea...
Engine mounts it happened to me
If the position of the engine has moved then that will affect the position of the throttle cable
Assuming that your front passenger mount is hydraulic type...
See that large black plastic cap on the passenger side mount? Underneath that black cap is a 'bubble' or dome of hydraulic fluid pushing up on that cap. If there has been damage and the fluid has leaked out then you will be able to slightly move the large black plastic cap up or done by a fraction of an inch
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Old 02-12-2011, 09:38 AM   #12
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Im with the alternator idea. Mine was doing that. Ended up being that the cable from the battery to the alternator was corroded. also, it was arcing against the frame.. Luckily it was covered under warranty, since I had been having major issues with Carmax. If it didnt start right back up, i would suggest the sensor in the steering column. Mine would act up and not register teh chip in the key, and then it wouldnt start for 2 hrs.

in short, check alternator and wiring.
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Old 09-06-2019, 12:29 PM   #13
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I understand this is an ancient thread, but I've started having the same issue. It is not the alternator, or the battery as both are brand new. When I'm slowing down past 50, or even cruising at 50, my RPMs do a dance getting as low as 200RPM, and if I give it some gas, will jump back up to about 1800, but immediately descend again to 200, and if I'm lucky, drops to 0 and the car shuts down. Brought it to a mechanic, he couldn't figure it out, and this problem happens every single time I commute to or from work (~55km), but only starts to happen when I've nearly reached my destination, suggesting that it's caused by some sort of build up (maybe pressure?) as the car is running.

Any thoughts?
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