700R4 problems

[cybrfire]

OK, fluid is OK. red not burnt. Lots of pressure. I got first gear and reverse. Won't shift. Any suggestions on what I can check beyond that? Is it possible a chunk of ice is floating around in there?

One other question, I have another trans I could put in but its not an overdrive tranny. How much gas mileage is the overdrive really worth. This is my daily driver.

 

[RATAH]

Check the detent cable
i went from a 700r4 to th350
and get about 8 miles per gallon,
but to me it was well worth it,
you might also try changing the fluid,
but id say its fried from
what ive been thru with them
and i went thru 6 of em /forums/images/graemlins/frown.gif
here are a few links
http://www.transmissioncenter.net/700r4.htm
http://www.chevytalk.com/tech/transmission/tvcable.html

 

[big83chevy4x4]

most likely the governer gear is stripped. on the driver side near the rear is a cover for the governer. pull the cover and pull the governer out. if the gear is striped it is like 2.50 for a new one.
there is a few other posibilities but 80% of the timeit is the governer gear /forums/images/graemlins/waytogo.gif

 

[Klink K5]

Could have a sticky 1-2 valve in the valve body. I would get a can of Sea Foam Trans tune and add that to tranny fluid and try manually shifting it from 1st to second see if you cant break it loose. Also try pulling up and dowm on your detent cable. That valve can also stick and cause your problems. It doesn't take a big piece of debri to stick a valve body in a 700r4. Good luck! Did the trans work ok up to this?