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Print in friendly format Send this term to a friend  St Louis
St Louis, MO, is the location of the Corvette assembly plant from 1954-1981.

Since 1981, Corvettes have been assembled in Bowling Green, KY.
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johnven Need Help 86 4+3 OD not working
Guru Newb
New Jersey
1 Posts
Member since:
2005/9/21 0:00



Offline
OD light is on and will go into overdrive when coasting on highway or street, as soon as gas is applied slips into lower gear. Just filled off fluid with dealer ( it was low) car has 29000 miles and this just started last time out the other day. Was hoping fluid would do it but no luck, any idea's can it be the relay? Anyone have a similiar problem? Help please if you can thanks.
Posted on: 2005/9/21 22:05
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bogus RE:Need Help 86 4+3 OD not working
Grand Imperial Pooh-Bah
San Pedro, CA
20859 Posts
Member since:
2005/9/7 0:00



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Gee... I would get a copy of the factory service manual, and follow their debugging instructions. www.helminc.com

you can also find copies on eBay.
Posted on: 2005/9/30 14:33
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Arisa RE:Need Help 86 4+3 OD not working
Guru Newb
Laurel DE
37 Posts
Member since:
2006/2/15 0:00



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The 4+3 is basicly a 4 speed with a powerglide auto behind it. As Bogus said I'd grab a factory manual to start with. I can't remember if that unit uses vacuum to operate the OD or it's completely electrical.
Posted on: 2006/2/18 0:52
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bogus RE:Need Help 86 4+3 OD not working
Grand Imperial Pooh-Bah
San Pedro, CA
20859 Posts
Member since:
2005/9/7 0:00



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fully electronic. I would be sure that the connections have not been messed up too much by grease and grime...
Posted on: 2006/2/18 6:19
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