Blazer heater core with dashboard completely removed
The Chevrolet Blazer uses a coolant-heated radiator core mounted in the dashboard to supply heated air into the passenger compartment. This heater core can pass into clogged and leak, as it is normally the lowest aim in the coolant system and debris settles into it. Replacement of the heater core Testament catching the morals backyard mechanic approximately two hours to filled.
Instructions
1. Remove the front dash panel by turning the lower screws in a counter-clockwise direction, then unscrewing the unmarried bolt on the lip of the instrument Swarm and pulling the panel away. Remove the rear wiper switch and the 4x4 switches, provided relevant. Lowering the tilt rotate Testament spare the panel to be completetly removed.
2. Remove the radio, headlight switch module and glove box by turning their screws in a counter-clockwise progression.
3. Remove the leading dashboard by unbolting it at the front, between the windscreen and firewall. There are six to eight bolts holding it in, and, once they are removed, the sprint can be pulled out from the firewall. Be careful not to pull further all the more, as the wiring harness could grow into damaged.
4. Void the coolant system by turning the withdraw plug on the lower left corner of the radiator and allowing the fluid to fall into the void pan.10. Crank up the truck and add coolant until the heater core is filled and blowing hot air.11.
Hour and heat may carry stuck the hoses to the core nipples, and the hoses can be chop fitting at these nipples provided binding. Assent enough hose to reconnect the new core.
6. Unbolt the heater core's mounts with a socket wrench in a counter-clockwise direction. Once the bolts are free, the heater core can be maneuvered toward the windshield and slid out. Some coolant may splash out, so have a towel handy.
7. Replace the heater core with a new one by sliding it into place and securing the mounting bolts.
8. Reconnect the heater core's hoses, turn the radiator's drain plug clockwise to shut it, then refill the coolant system with a 50/50 percent mix of coolant and water.
9. Reconnect the dashboard to the firewall, then replace the front dash panel and fasten its instrument cluster screw and bottom bolts.
Uncapping the radiator can chop the internal power.5. Remove the heater core hoses, on the upper left of the engine bay, by pinching their hose clamps with a brace of pliers and pulling them off. Some models Testament include screw-type hose clamps; turning them counter-clockwise Testament loosen them.
Replace the radiator cap.
