1994 Geo Prizm heat not working

1994 GEO PRIZM
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RALPH11520
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  • 1 POST
Heater problem
1994 Geo Prizm 4 cyl Front Wheel Drive Automatic

hello,

I am having problems with my heat in my car. I replaced the thermostat and i still have no heat. It blows nothing but cold air. In the summer my AC stopped working also. at that point it blew hot air. I am hearing a wistlling noise when i put on the heater or ac . what can i do to resolve this issue. I live in the northeast and it is cold
Nov 23, 2008 at 10:56 AM
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MMPRINCE4000
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Check the cable to the diverter valve in the engine compartment, make sure it is working.
Otherwise the heater core is probably clogged.
Nov 24, 2008 at 5:18 AM