Question about 2003 GMC Envoy Xl

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2003 GMC Envoy XL transmission issue; make loud noise and...

It has about 120k miles and suddenly make loud noise when I accelated.   It seems that gear was stuck in one position for a while and gear changes later without notice .   Replaced transmission filter but problem did not solved.   What might cause the problem?

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Transmition willnot change to second gear

Posted on Aug 15, 2009

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