What could possibly be wrong with my heat?

2002 CHEVROLET BLAZER
190,000 MILES
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JAMIE.GILL
  • MEMBER
  • 1 POST
I have a new heater core, replaced the thermostat twice, have gotten a new heater blend door. I recently replaced the radiator (about 1 1/2 years ago) Not only does it not have any heat what so ever it blows cold air constantly from all outlets. (floor, vents, defrost) Even when turned off it blows air.
Jan 2, 2012 at 11:52 AM
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FIXITMR
  • ✓Experienced Mechanic
  • 9,989 POSTS
does it blow even while not moving?sounds like mode door is missing/broke?
Jan 2, 2012 at 12:12 PM
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