Why does my trans keep going out?


Asked by Jul 19, 2016 at 10:49 PM about the 2004 Chevrolet Avalanche 1500 4WD

Question type: Maintenance & Repair

I had my transmission rebuilt in my 2004 Avalanche 1500, Z71' 4x4 about 6
months ago. Since then they have rebuilt it again 2 more times. Now it is out
again. The trans shop is supposed to be good but they are at a loss as to
what is happening.I drive it in a normal fashion and don't tow or carry a heavy
load. Has anyone seen this problem?

2 Answers


If they have been using the same case it is possible they have missed a bad passage or a flaw in the case itself. If they have changed out the transmission completely they need to look at fluid cooling, possibly the cooler it self is plugged.

1 out of 1 people think this is helpful.

Forgot to mention that this a computer controll d tranny so if the TCM is messing up that could also ruin a tranny.

1 out of 1 people think this is helpful.

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