Gears in tranny grinding.

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Old 12-17-2008, 10:02 PM
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Default Gears in tranny grinding.

it sounds like gears grinding and its 1st and 2nd gears. 3rd i can go into a little. any help? input? trial and error methods?
Old 12-18-2008, 03:07 AM
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Default You need to post more information. No one can answer your post as is.

Grinding noise when rolling down the road?
Grinding when trying to engage gears?
Is the car a stick or auto?
is there a clutch issue?
Have you checked the slave and bled the system?
Old 12-18-2008, 07:03 AM
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Default Cheapest possible fix you could try would be to.....

Drain old gear oil and refill with (I think 3 quarts) of Redline MT90 synthetic gear oil. That might help. If not you only wasted about $30. My 91 90Q 20V would grind if I tried to go from 1st to 2nd too fast. I would have to push in the clutch and slowly go into 2nd if I didn't want to hear the gears grind. Now after using the MT90 gear oil it's like new. I guess it has something to do with the viscosity of the oil and the syncros not meshing (spining too fast while engaging the gears). Can't hurt to try.
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