2003 Chevy Silverado No matter what I set the temp at it st

2003 CHEVROLET SILVERADO
85,000 MILES • V8 • 2WD • AUTOMATIC
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DAVECANTWELL36
  • MEMBER
  • 1 POST
I bought this truck and the heater was bypassed. I looked online and I saw that I could hook up a hose and see if the heater coil leaked inside. I did this and it did not leak. I hooked the heater up and foumd out the reason why was because it blows hot all the time. Before I hooked it back up the ac does blow ice cold. I dont think it is a problem with either the heater or the ac. the truck does have a dual system though. I need help?
Jan 5, 2010 at 7:15 PM
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BRIAN 1
  • ✓ASE Certified Mechanic
  • 1,030 POSTS
  • ASE Certified Mechanic
you will have to check the left and right side temp actuators,one or both might be stuck.might want to have it scannned for any HVAC codes.I would also remove each actuator and make sure the temp door is moving freely and see if it changes from hot to cold when moveing the door.post back with what you find.
Jan 6, 2010 at 2:34 PM
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