Q: Car is having transmission issues (I think)

asked by on November 21, 2016

I change gears and disengage the clutch. Then I start to accelerate but if I put moderate pressure on the pedal (not pedal to the floor) my Mustang will rev to 3k rpm then drop back to about 2.1k rpm. As soon as it drops back to 2.1k it's as if it got its missing power and gets going faster than when it was at 3k. Meaning my Mustang was still applying power to the tires when it jumped to 3k. It stays at 3k for about 2 seconds and then drops to 2.1k. I don't think it's the clutch. Or could it??? Please help!!!

My car has 90000 miles.
My car has a manual transmission.

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