Having problems with your 2001 Chevrolet Suburban ?
Heat blows when AC is turned on - 2001 Chevrolet Suburban
On the bottom of the blower box(remove cowl)there is a actuator motor that opens up to the evaporator,and closes off the heater core,it is not working,just replace it,it is about 55 dollars around here.
Repair Help & Product Troubleshooting for 2001 Chevrolet Suburban
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