my 3oom when reaches 40 miles per hour will not change to the next gear, what could cause that, just started today 7/25/12
Does it shift if you use the auto stik?
Yes, but when it suppose to goto fourth the engines rev up but doesnt change, sound like it is stuck and will not increase its speed
I would check transmission fluid level and the filter. If those are good I would hook up to a code reader and check for any codes.
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