AC BLOWS COLD AIR BUT HEATER BLOWS COLD AIR ALSO...

  • Tiny
  • james buckhalter
  • 1999 Buick Century
  • 120,000 miles

A/c blows cold air, but heater blows cold air also. What could be the problem?

Monday, December 24th, 2012 AT 1:11 PM

1 Answer

  • Tiny
  • hmac300
  • Expert
  • 41,713 posts

Check to see that both heater hoses are hot when engine warm if they are thenit's an actuator problem in heater. Or control. Check for a vacuum leak and check where i've pointed out in pic. They may not be working

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Monday, December 24th, 2012 AT 2:32 PM

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