What is your question?
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What is your question?
no problem till yesterday fluid full
What makes this problem better or worse?
transmittion
How long has your 2002 GMC Sierra 1500 had this problem?
2nd day
1 Reply
Hello, it sounds like a probable internal transmission issue. However, it would be a good idea to perform diagnostic testing of this electronically controlled transmission to find out if there are any inputs electronically causing the shifting habits to occur, or any non-responsive electronic transmission components contributing to the problem. This must be done by a trained technician with diagnostic skills and equipment located near you. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops