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

Problem with automatic frany

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Old Nov 15, 2011 | 05:28 PM
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Default Problem with automatic frany

I have a 1986 corvette with a automatic and it jumps into overdrive way to soon. when it does that it cugges along. I am pretty sure it is the torqc converter fluddering because i can tap the brakes lightly and it runs great. Its like having a differant car. I can't see and adjustment. Could i get some good advice from somone out there Please.
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Old Nov 15, 2011 | 06:37 PM
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Automatic frany

Sorry, that just strikes me as funny.

I think it's set to go into OD in the low 40's if you're not really putting your foot into it. You might want to put your shifter into D rather than OD to be sure it's the OD you're noticing and not something else (like torque converter lockup).

I'm sure someone who knows way more than me about franies will pipe up soon.
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Old Nov 15, 2011 | 08:19 PM
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Franies act weird if the tv cable to the franny is not adjusted correctly. Make sure that is done.
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Old Nov 15, 2011 | 08:56 PM
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There is an adjustment tab for the tv cable on the drivers side of the intake, right behind the throttle body. With the engine not running press the tab, and move the slider on the front towards the back of the car, release the tab and push the throttle lever wide open. This should make frany behave, but you should also check to make sure her fluid is at the correct level.
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