Vehicle make/model 2000 Buick Lesabre
Mileage 200k
Engine size 3.8
dash lights =
codes
work done prior = At around 120k the trans was replaced with a used
one. Vibration appeared a few YEARS later.
Work done to repair = New tires, balance, alignment. These were needed
anyway.
Tech SF
question = There is a vibration under load (hard acceleration/load is
worse).
If you coast at any of these speeds it is NOT present or significantly
reduced.
Vibration reminds me of a wheel badly out of balance but seems to be
more centered in the driveline.
Another owner recently described a vibration (same year/model w-similar
mileage) that may be the same. Is there anything common to look for on
these?
SF:
Well, with the amount of miles, and not feeling it for myself, this may be caused by a
worn engine mount or transmission mount. A worn mount under heavy load can give
what feels like a driveline vibration.
May also be a worn axle CV joint. These are a little harder to diagnose. Removal of
axle and feeling for loose joint or stiff joint may be required. Also, check for axle being
loose as it goes into the trans. This would indicate a worn bushing in the trans.
Mileage 200k
Engine size 3.8
dash lights =
codes
work done prior = At around 120k the trans was replaced with a used
one. Vibration appeared a few YEARS later.
Work done to repair = New tires, balance, alignment. These were needed
anyway.
Tech SF
question = There is a vibration under load (hard acceleration/load is
worse).
If you coast at any of these speeds it is NOT present or significantly
reduced.
Vibration reminds me of a wheel badly out of balance but seems to be
more centered in the driveline.
Another owner recently described a vibration (same year/model w-similar
mileage) that may be the same. Is there anything common to look for on
these?
SF:
Well, with the amount of miles, and not feeling it for myself, this may be caused by a
worn engine mount or transmission mount. A worn mount under heavy load can give
what feels like a driveline vibration.
May also be a worn axle CV joint. These are a little harder to diagnose. Removal of
axle and feeling for loose joint or stiff joint may be required. Also, check for axle being
loose as it goes into the trans. This would indicate a worn bushing in the trans.
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