A/C blows cold air, but heater blows cold air.

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?

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

1 Reply

Tiny
HMAC300
  • EXPERT
  • 45,744 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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