2003 Chevy Trailblazer Vents

2003 CHEVROLET TRAILBLAZER
116,000 MILES • 6 CYL • 4WD • AUTOMATIC
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BRANDONHAWKES
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  • 1 POST
My air conditioning only works out of the passengers side of my car, on the drivers side it only comes out hot, the fan speed is great just no cold air.
Nov 11, 2009 at 9:54 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
In this case, you are most likely looking for a vacuum leak. The vent doors are actuated by vacuum. Check under the dash for damaged, broken, or disconnected vacuum hoses. If the engine is on, you may actually hear a hissing sound from a leak. Also, follow the vacuum supply hose from the controler through the firewall to the engine to make sure there are no leaks there.

Let me know what you find.

Joe
Dec 1, 2009 at 8:24 AM
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