First Locate the heater assembly on the passenger side under the hood. You will need a dremel or similar cutting tool. Remove computer and coolant reserve. Now you need to look for the cut line, this is marked with writing "FOR SERVICE CUT HERE" THen cut as far as you can and the rest has a tear line so all you need to do is grab a pliers and pull it until the tear line rips clean. Next remove the bolt in the wheel well right in front of the blower. You can now remove the screws and replace the fan. Just did this last night took me about 1 hr and now i have heat again. Hope this helps you out.
how to replace a heater core in a 1997 Chevy blazer
where is the blower motor on a 2001 chevy blazer
probably the blower motor resistor
Ain't no fixin it, you have to replace it with a new one.
Check fuse if the blower is not working. If it is then replace your heater core. if its not then replace your fan switch.
take it to a shop and have them do it If it's the same as a pickup, take out the glove box and the resistor should be on top of the heater box. Not much too it.
You can but you still won't be able to get it out.
Under the hood, on the passenger side of firewall, near the blower motor.
if you have a 2003 Chevy Trail blazer and you need to replace the resistor for the rear blower, the one under the passenger side dash is the one that controls the front and rear blower.
how to change the blower motor
The heater blower for a 2002 Chevy Silverado is mounted under the dash. It is on the passenger side, in the heater housing.
The fuse. The blower motor speed resistor. The blower motor relay. The blower motor switch. Check for power at the blower motor connection.