1996 GMC Truck Repair Question
Topics covered: Heater, Heater core, Door.
Mileage: 130,000 miles.
Mileage: 130,000 miles.
Asked on January 12, 2011
Heater
Heater doesnt work on my 1996 gmc sierra truck 1500 4.3 i have already replaced blender door accuator and still doesnt work when i turn heat on it blows heat a second then cold air
Asked by pawpaw49Answer
Replied on January 12, 2011
At engine operating temp, quickly touch the two heater core hoses on firewall. If one is hot and one warm/cold, then heater core is blocked.
