Rick's Free Auto Repair Advice

Posts Tagged: can’t control air temperature

My AC stops cooling and the heat comes on

Why does my AC stop cooling Heater comes on – GM GM has issued a technical service bulletin (TSB) #04-01-38-008 to address AC stops cooling – heater comes on problems with the HVAC system on the following vehicles: 2003-2005 Cadillac Escalade, Escalade ESV, Escalade EXT 2003-2005 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2003-2005 GMC Sierra, Yukon, Yukon XL If it seems that the heating/cooling system in your vehicle has a mind of its own, it’s probably because the wiring harness has rubbed through and is touching metal parts. GM says the … Read More


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