Question about 2003 Chevrolet TrailBlazer

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2002 trailblazer. the air all of the sudden started blowing HOT air! also when air is turned on the rpms drop dramaticaly and have even stalled the engine a few times! what gives?

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  • kdrubly8 Jul 23, 2009

    found out what it was! need whole new heat/ac control panel. big expense! time for a trade

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Do you have standard environmental controls or are they of the digital type for one? As far as the RPM's dropping hard, you can have a dry compresser. try a can of " R134 with oil " sounds to me that if all this just started happening with the HOT air and the engine rpm's dropping. you may heve a leak in the system, and if you continue to run it you can cause sever damage to the compresser.

Posted on Jul 24, 2009

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How many times do you have to start it before it keeps running ? Will it stay running if you open the throttle ?

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