Thread: motor mounts

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  1. #1 motor mounts 
    GTX Level Member 94grandprix's Avatar
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    ok im pretty sure my 00 grand prix is overdue for motor mounts, the rubber is cracked and broke off on the dog bones, ive searched and couldn't find were and if these cars have rear motor mounts,if so tell me were they are and also the trans mounts cause my cars motor jerks hard when going into reverse and I think they may be causing my vibration, my car has 198xxx miles on it and they have never been changed
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  2. #2 Re: motor mounts 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    Under the engine and trans on the cradle.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  3. #3 Re: motor mounts 
    Killa Bee Scottydoggs's Avatar
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    you have a trans mount, and a motor mount, both located on the sub frame to the engine.

    the two top mounts, engine to the rad support are called "toque struts" or upper mounts.

    they all wear out.

    theres how to's here for all of them. quite easy really if you feel good about working on your car.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #4 Re: motor mounts 
    GTX Level Member 94grandprix's Avatar
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    ok i can probably change them myself,cant be to bad,ive searched the forums and haven't fond a write up yet and is there a possibility it may be causing the vibration cause a motor shouldn't jerk back that hard,i think they are shot
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  5. #5 Re: motor mounts 
    Killa Bee Scottydoggs's Avatar
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    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  6. #6 Re: motor mounts 
    GT Level Member Adidasdude1989's Avatar
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    Hey thanks, im also due for all mounts, i dont have a lower motor mount under my engine, when i had my sway bar replaced, the guy that did it should me the crushed up rubber and pulled it out an what not so now if i take right turns a little to fast, a little clunk is heard. Damn things are $50 from the auto part store, cheaper some where else maybe?

    Miles: 170-XXX
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  7. #7 Re: motor mounts 
    GrandPrix Junkie
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    Rockauto.com
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  8. #8 Re: motor mounts 
    GXP Level Member 91parkave's Avatar
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    Quote Originally Posted by Adidasdude1989 View Post
    Hey thanks, im also due for all mounts, i dont have a lower motor mount under my engine, when i had my sway bar replaced, the guy that did it should me the crushed up rubber and pulled it out an what not so now if i take right turns a little to fast, a little clunk is heard. Damn things are $50 from the auto part store, cheaper some where else maybe?
    Are you saying you need a new lower mount or are you saying you don't have one? Your lower engine mount is located passenger side take the wheel off under the crank pulley you'll see whats left of the motor mount. Go to the store and opt for the solid rubber design (Sr) at the end of part number. There less prone to screwing up like the hydraulic mounts are. Make sire when you get the mounts shake them if you don't hear fluid moving inside you have the solid rubber.
    06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k
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  9. #9 Re: motor mounts 
    Killa Bee Scottydoggs's Avatar
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    what a shot mount looks like,



    the rest of it.



    when this bad, you will see the engine try to rotate when you shift from P to R then to D. the pass side will move towards the rad, and then back to the firewall.

    oil leaks help kill the mount too.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  10. #10 Re: motor mounts 
    I live here. ericspecullaas's Avatar
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    scotty i had worse. but when it gets that bad yeah time for a new one if not then new motor time.
    im a cookie again yay me
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  11. #11 Re: motor mounts 
    Killa Bee Scottydoggs's Avatar
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    how does it get worse then that? its metal to metal no rubber left at all lol

    crazy part is is dint clunk, but the engine sure did move a lot. no vibrations or other issues.

    flipping the dog bones bushing makes the engine even tighter.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  12. #12 Re: motor mounts 
    I live here. Slick2500's Avatar
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    Not trying to jack the thread but does anyone still carry the solid mounts?
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  13. #13 Re: motor mounts 
    GXP Level Member 91parkave's Avatar
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    Quote Originally Posted by slick2500 View Post
    Not trying to jack the thread but does anyone still carry the solid mounts?
    Auto one oriellys just have to specify solid rubber option
    06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k
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  14. #14 Re: motor mounts 
    I live here. ericspecullaas's Avatar
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    Quote Originally Posted by Scottydoggs View Post
    how does it get worse then that? its metal to metal no rubber left at all lol

    crazy part is is dint clunk, but the engine sure did move a lot. no vibrations or other issues.

    flipping the dog bones bushing makes the engine even tighter.
    well i cleaned mine so it was smaller than your mount grease and oil do hide alot.
    im a cookie again yay me
    Quote Originally Posted by Bio248 View Post
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    ^^new favorite quote
    Quote Originally Posted by Kilroy View Post
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    only one person looked it up lol
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  15. #15 Re: motor mounts 
    I live here. Slick2500's Avatar
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    Quote Originally Posted by 91parkave View Post
    Auto one oriellys just have to specify solid rubber option
    Okay sweet so Rockauto might still have them? Its just been a while since I looked.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  16. #16 Re: motor mounts 
    GXP Level Member 91parkave's Avatar
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    I'd prefer a local auto store for the lifetime warranty
    06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k
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  17. #17 Re: motor mounts 
    GT Level Member addzradd's Avatar
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    I Prefer ZZP's poly mount it may be twice as much but even the SR mounts have a hydraulic center and are prone to **** ups.
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  18. #18 Re: motor mounts 
    GXP Level Member 91parkave's Avatar
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    Quote Originally Posted by addzradd View Post
    I Prefer ZZP's poly mount it may be twice as much but even the SR mounts have a hydraulic center and are prone to **** ups.
    Sure Zzp is a great option but solid rubber mounts are just that there is no fluid in them meaning they are not hydraulic in any way. Hydraulic mounts have fluid inside that allows for more movement in the mount for a comfortable compliant ride.
    06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k
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  19. #19 Re: motor mounts 
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    is zzp the only company with poly mounts?
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  20. #20 Re: motor mounts 
    GT Level Member addzradd's Avatar
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    Quote Originally Posted by 91parkave View Post
    Sure Zzp is a great option but solid rubber mounts are just that there is no fluid in them meaning they are not hydraulic in any way. Hydraulic mounts have fluid inside that allows for more movement in the mount for a comfortable compliant ride.
    Trust me even the "soild" mounts have fluid in them our NAPA SR mounts come back all the time for failures where they pop.
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