1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Transmission issues

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Old 07-11-2009, 06:30 PM
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Default Transmission issues

I am not sure if this is the right spot to place this but i am having tranny issues. I have a Supercharged 95 SSEi. It runs and drives great. It shifts and the fluid isnt burnt or smelly. But... my tranny makes a clunk in park and neutral only. I was told maybe the flexplate and that wasnt it. Maybe the planetary set. idk. I have been driving it as is. It still goes like crazy. Everyone i have talked to is stumped and told me to drive it untill it does crap out. Its got 230,000 miles on it on what i believe to be the original motor and tranny. Any advice would be greatly appreciated!

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Old 07-11-2009, 06:51 PM
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I would have a buddy help you. Hold the foot break and shift through the gears standing. See if the engine rocks back and forth you might have a bad motor mount. Also do a tranny fluid change see if it have alot of metal in the pan. But it is weird the trans would make a sound in neutral and park. Might be the input that engages and disengages the gear set.
Old 08-11-2009, 09:16 PM
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Im having the same problems on my bonne as well. Had a flush but still makin that noise..
Old 08-11-2009, 10:59 PM
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Check the engine and transmission mounts. But, sounds like a tranny fluid and filter change are in order as well.
Old 08-12-2009, 08:01 AM
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Is this a random knocking noise? Only in park/neutral, right?
It'* in the final drive area of the trans. I can't for the life of me remember if it'* the actual final drive or something leading up to it. IIRC, it causes enough damage to the case to render the trans "unrebuildable". I say drive it till it'* done and swap in another.
Old 08-12-2009, 01:29 PM
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Yeah it happens to me only in park/neutral. Ive had a flush and have driven it +1,500 miles since Ive noticed it.. Im clueless
Old 08-12-2009, 08:33 PM
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What about going into reverse and the car going 'CERPLUNK'...a hard shift that knocks the car like its getting bumped into...?
Old 08-12-2009, 11:32 PM
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I can feel it shift into reverse, that for sure. But only when parked on a hill.. flat driveway its like nothing.. Im starting to think it might be a mount of some sort.
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