1999 Chevy Camaro No hot air blowing.

1999 CHEVROLET CAMARO
112,000 MILES • 6 CYL • 2WD • MANUAL
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REDELMAN
  • MEMBER
  • 1 POST
My car would blow cold air out the heater intermittantly. I could turn the foot, dash and defrost button back and forth and get the heat to blow again. I have since flushed and refilled the radiator, new thermostat and back flushed the heater core. That seemed to work. Now, after about 1,000 mi. no heat at all. I have a new heater valve. Where does it install? Is it the instrument switch? Is the door not opening to let the blower air flow over the heater core? Please help with possible remedy.
Dec 29, 2009 at 7:40 PM
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DOCFIXIT
  • ✓ASE Certified Mechanic
  • 18,828 POSTS
  • ASE Certified Mechanic
Hi Temp valve on HVAC unit is vacuum controlled see diagram. Most likely the problem but don't over look master select vacuum switch. A leak there will not close door all the way.


https://images.2carpros.com/forum/automotive_pictures/198357_Graphic_293.jpg

Hope this helps Thanks for donate
Dec 30, 2009 at 11:56 AM
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