1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Rev's Jump Suddenly When Stopped

Discussion in 'Performance and Tuning' started by marcbush123, Jan 31, 2012.

  1. Jan 31, 2012 at 5:43 PM
    #1
    marcbush123

    marcbush123 [OP] New Member

    Joined:
    Jan 31, 2012
    Member:
    #71847
    Messages:
    1
    Gender:
    Male
    Hey Guys,

    Newbie here. Just bought an 08 double cab 4x4 with about 23,000 miles a month ago. Couldn't be happier with the truck, it's the truck I always wanted - even if I won a million bucks!!!

    I have very little knowledge about engines apart from the basics. After about a month of driving it, I have noticed that when I am waiting at a red light for instance, the revs jump and the truck wants to move forward. I usually don't have my foot on the brake all that hard, unless I'm on a hill, so it tends to startle me - even now that it's happened a few times. It doesn't actually take off or anything, but it does budge a little and seems a bit odd.

    I am trying to narrow down the window becuase it doesn't happen all the time. I thought maybe when it's very cold, in other words the engine may not have warmed up completely, but that has not always been the case. Not a deal breaker by any means, but wondering if this is normal, or a quick fix?

    Cheers,
     
  2. Jan 31, 2012 at 5:45 PM
    #2
    OZ-T

    OZ-T Quite an experience to live in fear , isn't it ?

    Joined:
    Dec 15, 2009
    Member:
    #27584
    Messages:
    38,727
    Gender:
    Male
    First Name:
    Peter North
    British Columbia
    Vehicle:
    Mag Grey 09 Trd Sport DCLB 4x4
    OME 885x , OME shocks and Dakars , Wheelers SuperBumps front and rear , 275/70/17 Hankook ATm , OEM bed mat , Weathertech digifit floor liners , Weathertech in-channel vents , headache rack , Leer 100RCC commercial canopy , TRD bedside decals removed , Devil Horns by Andres , HomerTaco Satoshi
    Air conditioner compressor kicking on , it will do that if on either of the defrost settings
     
  3. Jan 31, 2012 at 5:47 PM
    #3
    Taco-NB

    Taco-NB MMMMM Taco's

    Joined:
    May 1, 2009
    Member:
    #16662
    Messages:
    1,744
    Gender:
    Male
    New Brunswick
    Vehicle:
    '09 4X4 SR5 Access Cab V6 - Black Sand Pearl
    First of all .... Welcome to the forum.

    The increase in revs is "normal". I have read that its related to the AC compressor. Used to freak me out too but I got used to it.

    Cheers.
     
  4. Feb 29, 2012 at 2:30 PM
    #4
    JORGEDOMHER

    JORGEDOMHER Member

    Joined:
    Jan 14, 2012
    Member:
    #70625
    Messages:
    8
    Gender:
    Male
    First Name:
    JORGE
    GUADALAJARA, MEXICO
    Vehicle:
    TACOMA 02 TRD
    BODY LIFT 2"
    I have the same issue, but i never use the a/c so?
     
  5. Feb 29, 2012 at 2:33 PM
    #5
    OZ-T

    OZ-T Quite an experience to live in fear , isn't it ?

    Joined:
    Dec 15, 2009
    Member:
    #27584
    Messages:
    38,727
    Gender:
    Male
    First Name:
    Peter North
    British Columbia
    Vehicle:
    Mag Grey 09 Trd Sport DCLB 4x4
    OME 885x , OME shocks and Dakars , Wheelers SuperBumps front and rear , 275/70/17 Hankook ATm , OEM bed mat , Weathertech digifit floor liners , Weathertech in-channel vents , headache rack , Leer 100RCC commercial canopy , TRD bedside decals removed , Devil Horns by Andres , HomerTaco Satoshi
    ^^^ unless it's different for the first gens
     
  6. Mar 1, 2012 at 1:42 AM
    #6
    Kyouto42

    Kyouto42 Iron Beard

    Joined:
    Aug 18, 2008
    Member:
    #8614
    Messages:
    9,243
    Gender:
    Male
    First Name:
    Jake
    Ahwatukee, AZ
    Vehicle:
    BSP '10 4x4 TRD Off-Road DC
    See build thread in signature
    Actually it's not the a/c compressor (though this can do it too)... it's actually a delay in the auto downshifting to 1st gear. Both my 08 and 10 does it, normal operation. Just the torque in downshifting bumping the truck a bit. Over time you'll learn to hold the brake down just a tad harder :)
     
To Top