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Car revving by itself?

Discussion in 'The Garage' started by xlilzeex, Jul 30, 2007.

  1. Jul 30, 2007 #1
    xlilzeex

    xlilzeex New Member

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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.
     
  2. Jul 30, 2007 #2
    68mustang5.0

    68mustang5.0 Active Member

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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.
     
  3. Jul 30, 2007 #3
    scarface

    scarface Guest

    def. check the IAC (idle air control valve)
     
  4. Jul 30, 2007 #4
    TxCobrA98

    TxCobrA98 Legend

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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.
     
  5. Jul 30, 2007 #5
    quickstang_1994

    quickstang_1994 Well-Known Member

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    +1
     
  6. Jul 30, 2007 #6
    TxCobrA98

    TxCobrA98 Legend

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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.
     
  7. Jul 30, 2007 #7
    quickstang_1994

    quickstang_1994 Well-Known Member

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    did you drive it to see if the computer will correct it after the reset.
     
  8. Jul 30, 2007 #8
    TxCobrA98

    TxCobrA98 Legend

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    yeah.. it still did it after like 100 miles..
     
  9. Jul 30, 2007 #9
    quickstang_1994

    quickstang_1994 Well-Known Member

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    spray it down with carb cleaner to check for vaccum leak
     
  10. Jul 30, 2007 #10
    scarface

    scarface Guest

    HOLY BIG SIG quickstang!
     
  11. Jul 30, 2007 #11
    quickstang_1994

    quickstang_1994 Well-Known Member

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    I just put the second one up there for a little while
     
  12. Jul 30, 2007 #12
    Red96GT

    Red96GT Legend

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    Looks the way my car does all the time. ^-^