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

junk trans 700

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Old Oct 20, 2011 | 02:57 PM
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newoldvette
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Default junk trans 700

Can someone describe whats going on with my transmission? Every so often my trans acts as if it doesnt have a 2nd gear. Sometimes it just revs and other times it fine. Last week after coming to a red light, the car would not shift into 2nd gear. After I let of the gas and the rpms went down, I heard a clunk, the the car shifted normal all day.

what is the clunk noise
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Old Oct 20, 2011 | 03:24 PM
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Check fluid level and tv cable adjustment before declaring it junk.
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Old Oct 21, 2011 | 11:02 PM
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Originally Posted by newoldvette
Can someone describe whats going on with my transmission? Every so often my trans acts as if it doesnt have a 2nd gear. Sometimes it just revs and other times it fine. Last week after coming to a red light, the car would not shift into 2nd gear. After I let of the gas and the rpms went down, I heard a clunk, the the car shifted normal all day.

what is the clunk noise
It is 1 of 2 possible issues taking place in your 700 R4.

There is a problem with the 2nd gear servo in the 2-4 servo assembly that activates the 2-4 band.

Or there is a problem with the stock sun gear shell.
Sun gear shell may be cracked or half stripped out splines.

The 2-4 servo assembly can be serviced without removing the trans from your Corvette.

BR
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