Thread: Bad motor mount ?

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  1. #1 Bad motor mount ? 
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    During the past few weeks I'm feeling the engine vibrations in the steering wheel & brake pedal. Pretty sure the motor mount has been wet from an oil leak too. So, when the motor mount goes bad does the motor come down onto the metal part & cause this ? Car has 150 K on it.
    04, GTP

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  2. #2 Re: Bad motor mount ? 
    SE Level Member jimzssei's Avatar
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    I'd say it's more than likely a culprit.
    Have someone (you trust) sit in the drivers seat, goose the throttle while in drive and reverse (heavy on the brakes of course) . Watch the engine and trans move.
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  3. #3 Re: Bad motor mount ? 
    GrandPrix Junkie SgtMarshal's Avatar
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    If the motor mount has never been changed it is probably bad. The oem mount is made of rubber, has some metal frame in it, but the rubber is hollow and is fluid filled. Over time the rubber deteriorates and the fluid leaks out. A lot of different things can cause vibration, but a bad engine mount is possible. I Have a mount for sale, pm me if you are interested
    Last edited by SgtMarshal; 10-30-2016 at 09:35 PM.
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  4. #4 Re: Bad motor mount ? 
    The Blue One blueguy's Avatar
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    All you need are solid rubber replacement mounts; motor and transmission.

    Trans is on drivers side; motor on passenger.

    Flip the uppers, too.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  5. #5 Re: Bad motor mount ? 
    Donating User Swiggles's Avatar
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    Quote Originally Posted by blueguy View Post
    All you need are solid rubber replacement mounts; motor and transmission.
    Easier said than done
    No more GP 04 Impala SS Indy:
    Gen V 3.4”|FWI|N* TB lq4 MAF|1.9 Modded Rockers|F&R Plogs|ZZP 3" Catted DP|ZZP 2.5" Catback|
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  6. #6 Re: Bad motor mount ? 
    GrandPrix Junkie SgtMarshal's Avatar
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    it's not too hard, I did an engine mount myself. all I did was drill holes in the mount, drained the fluid, then used a caulk gun to inject polyurethane. it's kind of a pain because it makes a mess, but not hard. after I got the mount done, I saw I had a zzp poly engine mount, so now I'm trying to sell the mount.
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  7. #7 Re: Bad motor mount ? 
    Donating User Swiggles's Avatar
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    I meant harder to find actual solid mounts even when they say they are solid.
    No more GP 04 Impala SS Indy:
    Gen V 3.4”|FWI|N* TB lq4 MAF|1.9 Modded Rockers|F&R Plogs|ZZP 3" Catted DP|ZZP 2.5" Catback|
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  8. #8 Re: Bad motor mount ? 
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    So are the replacement mounts from parts stores also with the fluid? & where do you get the solid 1's & are they rough feeling.
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  9. #9 Re: Bad motor mount ? 
    GTP Level Member CHI2000GTP's Avatar
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    From what I have read, all the parts-store mounts will have fluid. Even if they claim to be "solid mounts", they will most likely have fluid in them. The solid ones will be slightly more rough feeling, as engine vibrations are not absorbed as well (not rough enough for anyone to care tho). ZZP sells them:

    http://zzperformance.com/3800/solid-engine-mount.html
    2000 GTP 4DR - Stock
    243,000 miles
    CHICAGO, IL
    My Car: http://www.grandprixforums.com/members-rides/103740-lukes-gtp.html#post1443981
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  10. #10 Re: Bad motor mount ? 
    GrandPrix Junkie SgtMarshal's Avatar
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    I would be curious if the zzp solid mounts are actually solid like they claim.

    The mount in the link looks exactly like the fluid filled one I modified
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  11. #11 Re: Bad motor mount ? 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by Swiggles View Post
    Easier said than done
    Pffft, not really.

    Sh1ts easy.

    What's hard about mounts? lol

    You can very easily order the solid rubber option mount off of RockAuto. As for the trans mount, ZZP sells a solid stock Regal trans mount. That's all that is, anyways.
    Last edited by blueguy; 10-31-2016 at 03:55 PM.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  12. #12 Re: Bad motor mount ? 
    GTP Level Member CHI2000GTP's Avatar
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    Quote Originally Posted by SgtMarshal View Post
    I would be curious if the zzp solid mounts are actually solid like they claim.
    The mount in the link looks exactly like the fluid filled one I modified
    Totes.
    We need decodave to buy one for $60, and confirm.
    2000 GTP 4DR - Stock
    243,000 miles
    CHICAGO, IL
    My Car: http://www.grandprixforums.com/members-rides/103740-lukes-gtp.html#post1443981
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  13. #13 Re: Bad motor mount ? 
    Donating User Swiggles's Avatar
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    I did get them from rockauto the second time.
    No more GP 04 Impala SS Indy:
    Gen V 3.4”|FWI|N* TB lq4 MAF|1.9 Modded Rockers|F&R Plogs|ZZP 3" Catted DP|ZZP 2.5" Catback|
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