2003 Chevrolet Trailblazer Repair Question
Chevrolet Trailblazer Battery Problem
The electrical system made have to be reset. Try removing battery and hooking pos. and neg. cables together, while battery is removed, and let sit overnight. Put battery back in car, put cables back on correctly, then drive car for a short distance, to let ecm relearn. Then try a/c and heat again. If still blowing out at feet when on vent you probably have a vac. leak, on supply line to dash.
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