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jerking

This is a discussion on jerking within the Automatic Transmission forums, part of the Drivetrain category; Whenever I put the car in reverse or drive it jerks the whole car. What is causing this?...

  1. #1
    Member ls1wallen's Avatar
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    2001 Formula

    jerking

    Whenever I put the car in reverse or drive it jerks the whole car. What is causing this?

  2. #2
    None Shall Pass Knight's Avatar
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    99 WS.6 - Modified

    Is it the entire time you are in gear, or only when you first shift into gear?

  3. #3
    Member ls1wallen's Avatar
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    2001 Formula

    It does it sometime while in gear. I thought that was from when frost tuned my car.

  4. #4
    Junior Member st_cspeer's Avatar
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    Artic White
    2002 Camaro Z28

    Im Guessing your Cammed and a A4. My car does the same thing sometimes at lower speeds and going into reverse. My tuner says it cause I havent swapped to a larger stall yet so they dont match up correctly. Now I have the issue but should be solved soon, have 3600 stall and flexplate in the closet, along with 3.73 gear to install as well. Then a complete new Dyno tune

  5. #5
    Moderator 98TransAmWs-6's Avatar
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    98 TA WS6/ 01 C5 Corvette

    My car does this too but I am not cammed. But its only when I first put it in reverse and when I first put it in drive. I did recently have a tab replaced on my shifter and it started just after that. So I dunno exactly why it does it.
    1998 Trans Am WS6 - Phantom
    421 CI LQ9, Tick Performance Custom Cam, TFS 255cc LS3 heads, Kooks 2" LT headers, Kooks 3" True Duals w/ high flow cats, FTP 104 lid, Speed Density Tune, 4" silicon tube, LS6 VCT, FAST 102 Intake, NW 102 TB, Oil Catch Can, SLP Bilstein Shocks w/ Vogtland Springs, CTS-V 4-piston Calipers w/C6 Z06 rotors, Stainless Steel Brake Lines, R1 concepts premium rotors, Hawk HP+ brake pads, VFN WSQ Hood, C5-R timing chain, SLP oil pump, E85 tune, Walbro 450 fuel pump, Deatschwerkz 95# injectors, Breathless performance headlights, Frost Tune, !HVAC.
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  6. #6
    Junior Member timothyodell2525's Avatar
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    white
    1998 trans am

    mine does it too when i go from park to reverse or to drive, or from reverse to drive or vice versa. it kinda makes a little ping noise when it does it. im gonna check the ujoints this weekend. i also read it could be the epc ( electronic pressure control valve) in the transmission. anyone had problems with this??

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