You need to go to a car parts store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
Detach the screw that attaches the heater duct on a Chevy Cavalier and remove the heater core. Once this is done you can replace the faulty heater core with a functional one.
how do you replace ignition switch on a 1992 Chevy cavalier 2.2 4 cylinder
Try this link it even has photos http://www.v6z24.com/howto/heatercore
How do you remove and replace wiper switch on 2002 Chevy Cavalier
how to replace a heater core in a 1997 Chevy blazer
There are heater-resistance wires in the glass of the back windshield.
The Front-Passenger-Side Cylinder
Probably around $500 or more if you have AC.
replace heater core in a 1991 Chevy work truck 1500
Remove the water supply hose from your 1988 Chevy Cavalier thermostat housing. Remove the thermostat housing bolts. Lift the old thermostat out and drop in the new thermostat.
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