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Puzzled by engine vibration

This is a discussion on Puzzled by engine vibration within the General Help forums, part of the LSx Technical Help Section category; Good evening guys, As I sit in the driver seat of my car, I throttle the gas and there is ...

  1. #1
    Junior Member
    Join Date
    Oct 2016
    Roseville, ca

    Puzzled by engine vibration

    Good evening guys,
    As I sit in the driver seat of my car, I throttle the gas and there is a decent vibration during the RPM rev. I though maybe it was the Harmonic balancer (it had a large gouge in it) So I bought an aftermarket one and installed.

    Still the same vibration. Needles to say, Im frustrated because I know it shouldn't be doing that.

    Any thought?

    Im a experienced mechanic, however Im new to the WS6's.

    I own a 2002 Trans Am WS6.

    Thanks in advance for the help


  2. #2
    Spaz is My Mentor SMWS6TA's Avatar
    Join Date
    Feb 2009
    Ugy Lower Corner of AL

    Navy Blue Metallic
    98 T/A w/ mods, 00 FBVert

    Only on rev up? Like a stumble or stutter?

    Check your motor mounts?

    6.0L Block - Forged 403 built, breaking it in , Polluter Stg3 Cam, FAST 102mm Intake, NW102 TB, MSD wires, NGK TR6 plugs, Truck Coil Packs, LS3 Fuel Injectors, CC Pacesetter LT Headers, TS&P ORY, QTP e-Cutout, Magnaflow Muffler, 104mm Air Lid & Line Lock, Catch Can, Stage 2 T56 w/Viper shaft, PRO 5.0 Shifter, Tick MC, Monster Stg 4 Clutch, QT SFI BH, MWC DSL, UMI: SFC, PHB, LCA's, LCA Relocation Brackets & TA, Hotchkis Springs (1" Drop), YR1 Snowflake Wheels wrapped in NT555 tires & Custom Fab Ford 8.8 rear w/4.10 Yukon Gears, WSQ Hood, 3"CM Strange Eng Drive Shaft.

    00 FB Vert

    Horsepower never lies, but is often lied about!

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