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Automatic transmission question

dwalc0604

Active member
Joined
Jul 3, 2015
Messages
27
Location
Cheektowaga, NY
Corvette
1980 Mellow Yellow
I have a 1980 Corvette with an automatic tranmission. Recently the exhaust donut on the righ side disintgrated. I also had a problem with my transmission where it was up shifting through the gears very quickly. It was in third gear before I reached 20 miles per hour. It got to the point where I was manually shifting. I made an appointment to have the donut replaced and to have the shifting problem looked at. On the way to the shop the transmission would not automatically shift at all. In fact I had a problem manually shifting. When I called the shop to check the staus of my car my mechanic told me he couldn't find any issue with shifting. He told me it was shifting perfectly. Is it possible that an exhaust leak would have a affect on the transmission shifting? Thanks, Dave
 

LLC5

Well-known member
Joined
Sep 28, 2004
Messages
2,299
Location
Wa.
Corvette
98 black 6spd convert.
Not likely unless it burned some wires or vacuum hoses.
 

dwalc0604

Active member
Joined
Jul 3, 2015
Messages
27
Location
Cheektowaga, NY
Corvette
1980 Mellow Yellow
I do have a recommendation from my mechanic for a transmission shop. Since it is shifting fine and it's almost time for winter hibernation I will wait till spring if I need further diagnosis. Thanks for your reply.
 

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