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My 2003 GMC Yukon XL - HVAC issues
I have an 03 XL and never had any issues. My ax/heater is now acting stupid in the front. It's dual climate control and the drivers side will blow hot or cold air but the passenger only hot. I replaced my alternator and battery a few months ago but that is the only major maintenance work that has been done. Anyone know what's going on and htf do I fix it? Thanks