700R4 transmission

The TH (turbo-hydramatic) 700R4 was developed for use after 1982 in GMC and Chevrolet cars and trucks.

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Why won't my 700r4 downshift?

t.v. cable adjusted properly, spool valve works, and governer is fine but when applying throttle car will not downshift. converter will unlock but no downshift. when slowing to a stop trans downshifts though slightly delayed. trans wasn't overheated and has less than 8000 miles.

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2 Answers

Chosen Solution

I think it might be a stuck downshift valve.

Check out this long discussion about it and see if you can find anything that helps you.

Good Luck

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Could be the shift solenoid or the speed sensors chech them is also possible the sence it sat for so long that the filter is just pluged up

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matt will be eternally grateful.

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