Question about 2006 Chevrolet Silverado 2500HD 2WD

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My 2005 Silverado a/c starts blowing hot after about 2-3 mins. If I shut the ignation off it strats to blow cold again, is there an inherent problem with this truck?

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  • LE man Aug 13, 2008

    Have the same problem with my 2006 6.6 diesel a/c. Will blow extremely HOT air unitl I turn off the engine. On restart, it works fine.

  • rstanza Aug 18, 2008

    Have you resolved or found an answer to this problem? I've raised the thermostat temp. and this seems to stop that from happening. Ron www.rcola.com

  • rstanza Aug 20, 2008

    Any answers, setting the temp higher works, checked Refeg. level AOK, does not need a charge, no leaks That cost $100, Must be a relay? Kinda Hot In Louisiana www.rcola.com

  • BigAssHam Oct 08, 2008

    I have the same problem. I have a 2006 Chevy Silverado, Ext Cab and this has happened 5 times in the last month. I shut it off and once I turn it back on it's fine.

  • no1dookie Oct 26, 2008

    06 silverado Hybrid ext-cab



    Same problem, and it only happens once in a while. About 75% of the time its fine. Mine also does this when i want heat and it blows cold when the motor is plenty warm,and also I noticed a clicking from the inside the passenger dash when that occurs. Is there a relay or something, Maybe one of the gates are stuck. It only happens on the passenger side for me. Driver side is fine. I'll sync the temps with Auto then go up all the way to 90 then down to 65 a few times. That works about 50% of the time. Any luck Let me know.



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6 Suggested Answers

  • 9 Answers

SOURCE: one side air blows cold one side blows hot

GM has a known problem with the electric actuators that operate the blend and temperature doors in the HVAC system. There are 4 or 5 of these in the typical system. Any can start sticking or binding and cause this problem. Sometimes they can be cleaned, or they might need to be replaced. Sometimes resetting the HVAC system controller by disconnecting the battery for 10 minutes, then reconnecting it, will correct the problem.

Posted on Sep 15, 2009

  • 4 Answers

SOURCE: heater only blows out cold air

Check the valve that controls coolant flow to the cabin

Posted on Feb 12, 2009

  • 31 Answers

SOURCE: 2005 jeep grand cherokee ac blows cold only on drivers side

I agree, these vehicles have a problem with the blend doors and since the accuators hit the door when it opens and closes, it breaks the doors. and it's a huge job to replace them.

Posted on Mar 12, 2009

inspectmycar
  • 233 Answers

SOURCE: ac blowing hot air

the blend door actuator located on the air box (right hand side under dash) is prob. inop. worst case senerio the blend door its self is broken. I have replaced the actuator more than anything.

Posted on Sep 16, 2009

  • 1 Answer

SOURCE: air conditioner problem with 2005 chevy 1500 silverado

I have the same problem exactly, if i turn off the ignition and then turn it back on it begins blowing cold air again. I would like to know what the problen is as it sounds like it is not unique to just my vehicle.

Posted on Oct 10, 2009

  • 1 Answer

SOURCE: 01 silverado blend door changed /now works back wards!!!

were the a/c blend door is located in 2002 chevy silverado

Posted on Mar 05, 2010

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