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Chevrolet
Monte Carlo
Climate Control
Heater
Not Working
car heater
1999 CHEVROLET MONTE CARLO
180,000 MILES • 6 CYL • 2WD • AUTOMATIC
CHEROKEECHUCK82011
MEMBER
3 POSTS
my heater only blows cold air, and i hear clunk sound underneath, and when i hear it, i get hot air for 3 seconds
Feb 11, 2011 at 5:53 AM
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MMPRINCE4000
✓
Experienced Mechanic
8,548 POSTS
Sounds like a blend door that is stuck. These direct heat to vents and lower vents. If they are stuck (closed), you would not get heat.
Feb 11, 2011 at 5:57 AM
CHEROKEECHUCK82011
MEMBER
3 POSTS
but i cant seem to find a blend door for a 99 monte..does it have a blend door on it?
Feb 11, 2011 at 7:15 AM
MMPRINCE4000
✓
Experienced Mechanic
8,548 POSTS
They are inside air ducts. They are mechanical "doors" that divert air as mentioned.
Feb 11, 2011 at 10:43 AM
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