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Old 07-01-2009, 11:05 AM
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Buick Riviera - Bad Tranny?

so I've got a 95 Riv. 3.8 supercharged. auto. Anyway, When I put it in drive, reverse, or any other gear it doesn't go. period. the engine runs fine, RPMs increase without any trouble at all, but the wheels don't turn!! I assume this is a bad tranny, but I've also been told it could be the torque converter, or even something as simple as the throwout bearing. Is there a way I can try to diagnose this so I don't spend my money on a tranny and my time replacing when it could be something else? thanks in advance for the help guys!

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Old 07-01-2009, 11:20 AM
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Quote:
Originally Posted by klutchmaster427
so I've got a 95 Riv. 3.8 supercharged. auto. Anyway, When I put it in drive, reverse, or any other gear it doesn't go. period. the engine runs fine, RPMs increase without any trouble at all, but the wheels don't turn!! I assume this is a bad tranny, but I've also been told it could be the torque converter, or even something as simple as the throwout bearing. Is there a way I can try to diagnose this so I don't spend my money on a tranny and my time replacing when it could be something else? thanks in advance for the help guys!
There usually isnt a quick fix for automatics. Have you checked the fluid level. Running in park. The torque converter can also cause this.
There is no throwout bearing on an automatic. From the year I would assume it has a lot of miles on it. A transmission shop with the proper gauges should be able to do a proper diagnosis on it.
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Old 07-01-2009, 11:28 AM
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Hi,
Have you checked the fluid in the transmission, if not go check it,
when you take the dipstick out, look at the color of the fluid it should be red,
now smell it, does it smell as if it's burnt?
if the fluid is dark or smells burnt you need to rebuild.
Rich

PS There is no throughout bearing in there, that's for a clutch movement with a standard trans.
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Old 07-01-2009, 01:05 PM
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The fluid LEVEL is ok, but I did not smell it. It don't recall it looked too dark, I will check again and smell it as well. Assuming the fluid checks out ok, what's next?
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Old 07-01-2009, 04:12 PM
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bad tranny

Change the fluid and filter,it may give you a few more miles ,but be prepaired for a rebuild or replacment. Jerry
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Old 07-01-2009, 06:01 PM
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changing fluid & filter at this time is a wast of money & time
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Old 07-01-2009, 08:15 PM
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Tranny

So wa you can diagnose a tranny without trying any thing? It would be cheaper and simplier especially if the guy is bucks down and not much in the way of tools.
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Old 07-01-2009, 11:59 PM
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read his post again, the car isn't moving, so that's a mechanical problem.
& you can change the filter & fluid as many times as you want, it wont fix a mechanical problem.

And to answer your question about diagnosing a tyranny without
even seeing it, well yes I can, (you witnessed it when you read this thread) & so can a bunch of other people on this board.

Last edited by richard stewart 3rd; 07-02-2009 at 12:20 AM.
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