My car RPM drops while I'm driving. What can be wrong?

Asked by Aug 14, 2014 at 09:36 PM about the 2007 Pontiac Grand Prix Base

Question type: Maintenance & Repair

I noticed today while driving on the interstate that my RPM would suddenly drop. What
could be the cause of this? I checked my transmission fluid and it's fine.

2 Answers

32,325

Dose the engine slow down when the RPM drops?

2 out of 2 people think this is helpful.
6,705

deoends.. if 1500 rpms at 55mph it is normal shifting. overdrive puts it that way.

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