Thread: annoying thumping sound at firewall idling in gear

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  1. #12 Re: annoying thumping sound at firewall idling in gear 
    SE Level Member teejay's Avatar
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    It has AC Delco plugs in it, I always use what came from the factory in it. As I mentioned in the first post the mounts are a year old but theres a strange story to that.The shop that replaced them told me that the enigine was not sitting correctly in the engine bay and that the new mounts would fix that.After they changed the mounts they told me that it was still not sitting at factory specs so they had to do some shimming? I bought this car new and it has never been wrecked so I don't know if thats normal to have to shim mounts in these GPs or not? They did'nt seen to know either. But recently I noticed that the engine mount is oil soaked again just like before it was changed so I guess its bad again? As far as engine movement I think it moves to much and I can feel engine movement while accelerating and decelerating.

    I dont know if them shimming the mounts made them fail prematurely or not?
    Last edited by teejay; 03-09-2013 at 11:53 AM.

    02,160,000 miles, was silver, painted it black after tornado totaled it,that did'nt take much. American Racing wheels,aluminum grills,Stinger Fiberglass hood,drivetrain stock.
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