Went to store-had overdrive, coming back-NO OVERDRIVE - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-25-2006, 06:40 PM   #1
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Default Went to store-had overdrive, coming back-NO OVERDRIVE

1995 Riviera Trans seems fine other than no overdrive. It was working great???? Is trans toast? or maybe some kind of sensor or switch? trans is fairly new
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Old 05-25-2006, 07:03 PM   #2
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I have the same problem. You are probably going to have to rebuild the transmission. A scanner would give you a better Idea what is going on with the transmission. I am going to be rebuilding mine in a few weeks.
( god I can't wait) I will keep you informed.
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Old 05-25-2006, 07:06 PM   #3
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DOUBLE POST....CHECK YOUR OTHER POST FOR A REPLY.

Of course the Mod had to lock the other thread because of it because I had replied to it already but here'* what I had asked.

How fast are you traveling?
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Old 05-25-2006, 08:01 PM   #4
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I was driving normal at 65 MPH
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Old 05-25-2006, 08:35 PM   #5
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Do you have a RPM gauge in your car, if so, what was it reading while you were driving?
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Old 05-25-2006, 09:08 PM   #6
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Ill bet it was reading around 2500 rpm wasnt it.
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Old 05-25-2006, 09:42 PM   #7
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Yeah 2500 ,but what'* weird is, I just drove it a couple miles down the highway and now overdrive is working again?????Is the trans getting hot and not wanting to shift? Any FWD trans tech guys on this board?Fluid does not smell burnt.
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Old 05-25-2006, 10:14 PM   #8
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Sounds like you may have an intermittant TCC Solenoid, and it'* starting to go out.


My theory.....if it'* working now and all.

Generally with heat, it'll make it slip in OD more than just not use it at all.
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Old 05-25-2006, 11:29 PM   #9
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Where is the TCC switch? Is it easily accessible with the pan off? I had one go out on my 87 Grand national and it was easy to change.
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Old 05-25-2006, 11:33 PM   #10
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These ones.....not so much.....it'* in the side pan behind the driver'* wheel....a total bitch to get at.
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