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Showing results for tags 'problem shifting'.
Since I bought my truck (1999 Sierra 1500) she had had a problem in the heat of summer (only). In the winter she hauls my snowmobiles perfectly with no problems at all. However, when the weather temp rises in the summer (above 75) degrees she truck will shift from first to second with a slamming jerk; from third on she is fine. I have read in other forums there is a way to adjust this but, where and how to do the adjustment is where I need guidance. All ideas and guides are welcome to help me out. The dealer wants way too much and I am disabled so that is completely out of my realm of budget. Please help me.