Tranny won't shift out of first on its own - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 05-08-2013, 07:11 PM Thread Starter
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Tranny won't shift out of first on its own

My 2000 7.3 automatic transmission won't shift out of first. The only way to get it to shift is by ruining it up to 2500 rpm then let off the gas let it shift then goes threw the rest of the gears fine , any ideas ?? Already changed filter and fluid .
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post #2 of 2 Old 05-09-2013, 12:24 PM
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Mine had similar issues. I spoke with Brian at BTS and he recommended cleaning the accumulator valve body.

I needed to do a flush anyways so I dropped the pan, removed and cleaned the accumulator valve body, installed a new filter, installed a 6.0 cooler with an external filter, and flushed the fluid. That was probably 4000 miles ago and no issues since.

Hope this helps

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