Quote:
Originally Posted by rod4
https://youtu.be/nCLcQxbkd3o
Can anyone tell me what's wrong with my car?
I'm answering all questions.
Been going back and forth with the dealer, since they have been unsuccessful in duplicating this behavior they've been nonchalant. Usually happens after long drives, and without warning. Car takes off on me.
Definitely not cruise control related, the engine runs really rough and shakes when this happens, also bogs and stalls out. It's scary it's revved as high as 3.5k RPM without my foot on the gas!
This is another video recorded a different day previously to the video above. This time a low, rough idle like the engine was struggling to remain running. At the beginning of the video it's easy to see how much the RPMs were dancing slightly up and down, the engine was shaking the entire car pretty badly.
https://youtu.be/f_46AexB5JM
the dealer said they found 2 codes stored in the computer I think they were P0018 and P0016. he said he cleared them and "updated" the computer but it's happened again since then.
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Maybe try cleaning the MAF (mass air flow) sensors. That can make the computer confused about airflow coming in and it may mis-adjust idle based on it.
This is the stuff to clean them with:
http://www.google.com/shopping/produ...HDOBoCr6Dw_wcB
Here's a generic video on how to clean them (couldn't find one specific to C6):