'94 STS rattle
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Northstar Engines and System Technical Discussion Discussion, '94 STS rattle in Cadillac Engine Technical Discussion; My '94 STS has a rattle that has started about a month ago, I thought it might be the front ...
  1. #1
    Reactor is offline Cadillac Owners Member
    Automobile(s): '94 STS, '94 SLS, '72 couple deville
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    Question '94 STS rattle

    My '94 STS has a rattle that has started about a month ago, I thought it might be the front motor mount, I looked at it,(the one at the front center with the brace that goes up to the head), and it is questionable, the brace is about .25" from touching the bottom part of the mount.
    But this rattle is not present when parked, and the engine running, I can race the engine, torque it under load, and idling with no rattle.

    when going down the road the rattle is there when hitting bumps, or cruising down the highway.
    Could it be the catalytic converter? I banged on it with my hand and it seem to have a rattle to it that is similar to the rattle I'm looking for.

    thanks for your input.

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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
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    Re: '94 STS rattle

    Stabilizer & link bushings?

  4. #3
    mcowden is offline Cadillac Owners Connoisseur
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    Re: '94 STS rattle

    I agree with Ranger. It does sound like that's what it could be. I have the same problem right now and need to get it fixed. FYI, my dad has replaced them twice on his 2000 ETC.
    Mike

  5. #4
    Reactor is offline Cadillac Owners Member
    Automobile(s): '94 STS, '94 SLS, '72 couple deville
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    Re: '94 STS rattle

    thanks, I will take a look at them, and let you know the results

  6. #5
    abreeze is offline Cadillac Owners Member
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    Re: '94 STS rattle

    just replaced my Links...did the job....Rock Auto sells after market ones by MOOG...they have grease nipples and should last longer...you can check em by wiggleing them, there should be no play..also check the sway bar bussings.

  7. #6
    powerglide's Avatar
    powerglide is offline Cadillac Owners Connoisseur
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    Re: '94 STS rattle

    Torque strut? (the dogbone shaped link connecting the engine to the front of the car.....just guessing (it cured my 'rattle'.....but it sounded more like a 'clunking')

  8. #7
    Reactor is offline Cadillac Owners Member
    Automobile(s): '94 STS, '94 SLS, '72 couple deville
    Join Date
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    74

    Re: '94 STS rattle

    could it be a transaxle?
    boots look good, but what would be a easy check for them?
    thanks

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