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is it my transmission mount?

This is a discussion on is it my transmission mount? within the Drivetrain forums, part of the LSx Technical Help Section category; I haven't had my car check because I haven't had anytime, but I was wondering if my transmission mount is ...

  1. #1
    z28pwrHecz Z28pwrHecz's Avatar
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    is it my transmission mount?

    I haven't had my car check because I haven't had anytime, but I was wondering if my transmission mount is out. when I'm at mid rpm on any gear, and I accelerate hard, I can feel and hear a thump coming from under the car. It also happens when I'm taking off on first gear and the car boaghs down. Have any of you guys gone through this?

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    Your dealership guy konigandy6's Avatar
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    It is possibly your exhaust hitting on the floor pan of your vehicle. Do you have long tube headers with an ORY? And if I'm not mistaken, I do belive it can trigger your knock sensors.....? I could be completely full of shit though...

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    z28pwrHecz Z28pwrHecz's Avatar
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    no i dont have any headers. stock exhaust... just has a cut-out

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    TJEA Retirement Home Dr.Crash's Avatar
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    Quote Originally Posted by Z28pwrHecz View Post
    I haven't had my car check because I haven't had anytime, but I was wondering if my transmission mount is out. when I'm at mid rpm on any gear, and I accelerate hard, I can feel and hear a thump coming from under the car. It also happens when I'm taking off on first gear and the car boaghs down. Have any of you guys gone through this?
    i had a problem like that. i replaced my tanny cross member and mount with a prothane mount. no more problem. it ended up being that my tarnny cross member was cracked. good luck

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    z28pwrHecz Z28pwrHecz's Avatar
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    thanks, i need to get this fixed this week.

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    TJEA Retirement Home Dr.Crash's Avatar
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    Quote Originally Posted by Z28pwrHecz View Post
    thanks, i need to get this fixed this week.
    pull your mount out first to make sure its not just that. do you notice any shifter movment? mine used to pop up a little bit when it was broken. where is the sound coming form. could also be the u-joint check that out as well

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    Senior Member Justin23454's Avatar
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    Ive got the same problem :/

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