the heater on my car wont blow hot air

2003 CADILLAC CTS
105,000 MILES
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CHAPIS82
  • MEMBER
  • 1 POST
the heater blows just warm air not even warm air
Jan 12, 2012 at 9:43 PM
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RIVERMIKERAT
  • ✓ASE Certified Mechanic
  • 6,110 POSTS
  • ASE Certified Mechanic
Check heater control valve. Make sure heater hoses get hot when engine does. Verify temperature control opens and closes blend doors.
Jan 13, 2012 at 12:35 AM
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