How Do You Change The Heater Core In A Chevy Blazer?
The Chevrolet Blazer uses a coolant-heated radiator core mounted in the dashboard to provide heated air into the passenger compartment. This heater core can become clogged and leak, as it is usually the lowest point in the coolant system and debris settles into it. Replacement of the heater core will take the average backyard mechanic about two hours to complete. Remove the front dash panel by turning the lower screws in a counter-clockwise direction, then unscrewing the single bolt on the lip of the instrument cluster and pulling the panel out. Remove the rear wiper switch and the 4×4 switches, if applicable. Lowering the tilt wheel will allow the panel to be totally removed. Remove the radio, headlight switch module and glove box by turning their screws in a counter-clockwise direction. Remove the main dashboard by unbolting it at the front, between the windshield and firewall. There are six to eight bolts holding it in, and, once they are removed, the dash can be pulled away from th
