Q: The tachometer in my car stays over 1000rmp when parked and even while holding the break

asked by on June 21, 2017

My cars tachometer stays over 1000rpm even while parked and it does not move when I accelerate, the speedometer does function correctly, and I can tell the break is somewhat harder to press. What could be the problem and how much would it cost to fix it?

My car has 100000 miles.
My car has an automatic transmission.

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