Having problems with your 2002 Chevrolet Silverado 2500HD ?
I have a 2002 2500HD silverado with a 6.6L Duramax my heater and a/c isn't working. I've checked all fuses.
Sounds like the control head. That's the control module in the dash you press for AC and heater.
Repair Help & Product Troubleshooting for 2002 Chevrolet Silverado 2500HD
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