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Cadillac
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19 Posts
Discussion Starter #1
1998 catera. 115,000 miles. 3.0 litre, has vibrating on idle and at stop while in drive position, can anyone help as to get started
 

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92' Eldorado, 97 Catera
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289 Posts
How bad are the vibrations? Are you seeing any fluctuations in the RPMs? Any lose in the MPG you where getting before? Any other drivability issue, even if they are small? Anything you can give will help narrow the search. Right now it would be a pretty big list if I wrote it out.
 

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Cadillac
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19 Posts
Discussion Starter #3
every thing is running good, no loss in rpm,suggest motor mount,and a reputable seller
 

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Cadillac
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Discussion Starter #5
it is a constant , as if theres a vibrator resting on the entire car,do you think it may be the harmonic balancer, if so how can i test
 

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2 1997 Cateras: black&ocean green
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698 Posts
I do not have info on the harmonic balancer. Does it feel like it misfires when you accellerate? Check Engine light on?
 

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Cadillac
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Discussion Starter #7
no, As i looked under car i noticed that the transmission mount bushing is split in half. Maybe this is causing the trouble
 

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1999 Catera
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57 Posts
That could very much do it. When the car is cold, start it up and put your hand on the tranmission mount and see if that is the bulk of the vibration. Regardless, fixing that is likely a good thing, but it's going to be a pain to replace.
 
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