It blows out coldnesses air but will not blow hot air!

2001 OLDSMOBILE ALERO
15,700 MILES
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LHARNEY31
  • MEMBER
  • 1 POST
This just recently happened! The lights for inside/outside air flow and ac/rear defrost quit working now it only blows out cold air what could be the issue?
Nov 30, 2011 at 9:48 PM
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RIVERMIKERAT
  • ✓Experienced Mechanic
  • 6,110 POSTS
With the engine hot, feel the two hoses that go through the bulkhead between the engine and passenger compartments. Make sure that when you adjust the temperature, the actuators on the airbox move and you hear the blend doors moving inside. Check all electrical and vacuum lines.
Nov 30, 2011 at 10:05 PM
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