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Old 08-26-2012, 08:23 PM
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700R4 problems shifting

Hi all

Been helping a neighbor off and on with his project '91 Chevy K1500. He's got a transmission problem and I don't know a lot about the 700R4. It goes from park into drive fine, but revs up really high before it shifts. Once it shifts into the higher gear, it won't downshift again. Manually going through the gears has no effect. Eventually it gets stuck in OD, it won't go into park, reverse, etc. However, if he shuts the truck off, and restarts it, it will go right back into first and the whole process starts over again...

Also, it doesn't have this problem all the time, it comes and goes. I'm guessing it's electronically related?

Any guesses as to what's going on here?

Thanks!

Mike
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