When I turn the heat or defroster on I get a sound like a belt is being started it will run and then shut off then run and shut off. If I am not using the a/c, heater or defroster there is no sound

Hi try this on the belt..cheers

Compressor clutch may be shorted.

The belt drives the water pump, alternator and other stuff...car over heats with out the water pump...battery died with out the alternator charging.

sounds like the alternator isnt making enough amps. maybe its a bad rebuil. also a worn belt will slip on alternator under heavy load. check belt and tentioner.

a/c compressor may be seized. A/c compressor kicks on when in defrost, a/c, floor/defrost modes any time temperature is above 40 degrees F. That will burn the sepenine belt and stall the engine.
Try turing heat on floor mode only & see if ok.

sounds like timing belt or fuel pump

SOUND LIKE AC COMPRESSOR LOCKED UP CAUSING BELT TO SMOKE.TICKING NOISE IS PROBABLY THE AC PULLEY BEARING.

You could remove fuse 25 (30amp) in the underhood fuse panel, but then no blower for AC, heat, or defrost. Need to replace blower regulator.

With engine cold, remove rad cap & check level in rad. Top it up if needed to 1 or 2 inches from top. Start engine, turn heater on (not defrost) and observe coolant level as engine warms up, add if necessary. Radiator fan should be off, and only come on when engine reaches normal operating temperature, for a short time, then shut off again. Let it run until that happens about 3 times, then put rad cap back on. If temperature gauge climbs up over normal toward hot, too much, shut it off. Do you now have heat? Is rad fan acting as I described? Let me know.

there is a blend door and a selector door in the HVAC system. These are run by vacuum or servo motors. Sounds like this little motor is your problem. Hope this helps you.