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Old 09-02-2007, 04:24 AM
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Ongoing problems with my 700r4 tranny

This transmission has only 20,000 miles on it and all of a sudden it won't shift from 2nd to 3rd. It is currently in my 1990 GMC 2500 Vandura (3/4 ton with a 5.7 Liter engine). Please advise.
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Old 09-02-2007, 07:48 AM
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Quote:
Originally Posted by Don Zdybel
This transmission has only 20,000 miles on it and all of a sudden it won't shift from 2nd to 3rd. It is currently in my 1990 GMC 2500 Vandura (3/4 ton with a 5.7 Liter engine). Please advise.

A common failure of the 700r4 / 4L60 trans is the 3-4 clutch pack. this clutch is used for 3rd gear and 4th gear too..... the band applies to create 4th gear.

Your thread title of "Ongoing problems .... " makes me think there have been previous problems recently?

This trans was recently rebuilt, repaired or is just real low mileage for the age of the vehicle?
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