car repairs






 

Question by  LFgood (25)

What is going on if my car is reeving up to 4 rpms?

My car is reeving at 4 rpms.

 
+13

Answer by  Mark15 (94)

It's more than likely that your problem is the IAC (Idle Air Control) valve or TPS (Throttle Position Sensor). Either one can be easily diagnosed with a scan tool.

 
+7

Answer by  jon40 (440)

If your car is automatically revving to 4000 rpm you could have an air leak or your throttle cable could be damaged and sticking.

 
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