Car revving by itself?

xlilzeex

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Anyone know what the deal is? Sometimes my car will rev up to 2 grand by itself when i put it into park. Its been goin on for the past two weeks and i need to figure out whats wrong with it.
 

68mustang5.0

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Clean your MAF, clean your IAC, check for vacuum leaks.


Dont forget to reset the ECU by unplugging the battery cable for about a minute.
 

TxCobrA98

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mine used to do the same thing.. i could never figure out the problem.. it went away by itself after a while... hasnt done it since last summer.
 

TxCobrA98

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i did all those and it didnt fix the problem.. only thing i could think is that it was a vacuum leak or maybe one of those sensors are bad.
 

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