$400 to $500 or more if the vehicle has AC, would be my guess.
how to replace a heater core in a 1997 Chevy blazer
The heater core is leaking coolant. Replacing the heater core in that vehicle is a fairly complicated job. If you are considering replacing it yourself, purchase a shop manual for that vehicle, you will need it.
Replacing heater core on a 2001 chevy,cavaliar.
Same as a 96 blazer go here.How_do_you_replace_the_blower_motor_on_a_1996_Chevy_blazer
DON"T TRY IT! I'm 5 hrs. into it and haven't got the dash off yet! Replacing the engine is eaiser! Steve
You have to completely remove the dash to get access to the heater core.
pull the handle down
do you need to remove dashboard in 2003 chevy impala to replace heater core
Maybe a bad switch
Right under the throttle cover.
Heater Airbound? Heater control cable not working? Heater core plugged?
did you check your battery and alternator?