C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

The +3 part dont work. 85'

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Old May 13, 2004 | 08:01 PM
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From: Cape Cod Ma
Default The +3 part dont work. 85'

When I use the overdrive wile going fast the tranny will pop its self in and out of overdrive. But going under 60 its fine. The only thing I checked is the fluid. The fluid is a clear color with a little red/brown. Not a normal ATF color. I'll change the fluid but in the Fall I jiggled a couple of sensors around on the overdrive unit and the overdrive worked fine untill now. Dose anyone know what kind on sensor could go bad. Or is it just a freek thing that the overdrive worked fine then now its junk.
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Old May 14, 2004 | 03:10 PM
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Default Re: The +3 part dont work. 85' (redfast)

On my '86 the connection plug for the overdrive unit had a build up of oil / grease in it. The mechanic found this out after replacing the overdrive switch under the shifter. Of coarse he charge me for replacing a switch that was not bad to begin with. :rolleyes:
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Old May 14, 2004 | 03:14 PM
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Default Re: The +3 part dont work. 85' (fmrff)

I would also check your overdrive relay connections of shrunken insulation.
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Old May 14, 2004 | 05:56 PM
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Default Re: The +3 part dont work. 85' (scorp508)

:thumbs: Witch connector is it. The one on the overdrive itself or the one on the tail shaft. Thanks :cheers:
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