AC Not cooling…Freon leak - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

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Old 09-10-2016, 10:01 AM
ChuckP1906 ChuckP1906 is offline
Junior Member
2008 Chevy TrailBlazer SS (3SS)
Silverstone Metallic 6.0L LS2 V8 AWD
Join Date: Sep 2016
Location: Wilmington, DE
Posts: 1
AC Not cooling…Freon leak

Thinking I was low on freon, I bought a can of 134A and added some freon to my system. My AC was still blowing warm air out. Three weeks ago, I took my SS to the dealership and they charged me $160 to recharge my AC system which included adding freon with a special dye to detect leaks. That worked 2 days then went back to having warm air blowing out. The next week, I took it back to the dealership and they recharged the AC system again and said my freon was low so they added some more. That lasted for about 1 week then the passenger side was blowing cool but not cold air and the driver side was blowing warm air. Then the blower motor died! I had the AC controls on full blast and nothing was coming out! Back to the dealership I go last week where they charged me $260 to replace the blower motor. They added more freon and the mechanic said it was blowing cool but not cold air! Two days later I am back to square one with the thing blowing warm air on both sides of the truck! There is an obvious leak somewhere in the system.

I am at a loss of words right now! I've taken my truck to the dealership 3 times in the last 3 weeks and they can't get this right!

Has anyone experienced anything like this? They claim the dye they used to detect a leak, they cannot locate where the leak is. However on the invoice of my latest dealership visit, they made a note and said its most likely an evaporator leaking inside the case.

Thoughts or suggestions?
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Old 03-19-2017, 08:26 AM
Jkb242 Jkb242 is offline
Junior Member
2006 GMC Envoy Denali
pewter 5.3L V8 2WD
Join Date: Nov 2014
Location: Orange Co, CA
Posts: 65
The dealership is violating federal law to add Freon knowing there is a leak. The dye is commonly found in all freon that is added to signal leaks under UV light.

Other than the leak, you apparently have an actuator control that is faulty Henderson, cool air in one side warm in the other.

Don't go back to that dealer find another repair facility, that dealer is clueless and risking a huge fine. The AC system is not that complicated to locate and repair the leak.

Best of luck!
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134a, air condition, blower motor, freon, hvac

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