A/C LINE GETS FROSTED

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A/C LINE GETS FROSTED

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Chevrolet Forum >> Chevy Trucks, Vans & SUV's >> Trailblazer >> A/C LINE GETS FROSTED

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A/C LINE GETS FROSTED - 7/5/2008 6:26:57 PM

JUNIOR

Posts: 45
Joined: 10/4/2006
Status: offline

i have an ac problem on a 2005 TB, at first i thought it was low on freon so i recovered and recharged it at 1.87lbs no rear ac on this 05. i have the low side off of the compressor getting frozen as the low side guage goes below 40 and my highg side is erratic on the quage it just goes crazy. i was thinking it could be the orfice tube being clogged up or something. where is the orfice tube on this 05 TB. i also read somewhere that these TB have had problems on the control panel unit something about reseting it by removing th hvac fuse to reset it, my 05 TB isnt cooling well inside i think it might be related to the ac control panel as well maybe its not controling the vent door correctly etc. it cools inside but not to 40 deg, but i also think i might have a restriction problem causing my low side line to get frozen under the hood. any help i can get i would greatly appreciate it.

Post #: 1

RE: A/C LINE GETS FROSTED - 7/6/2008 2:38:33 PM

EuroGoldLS

Posts: 2087
Joined: 7/12/2007
From: Princeton, NC, USA
Status: offline

Could be a number of things. You could have a refrigerant leak. Thats the best case scenario. Your inside coil piston/checkvalve could be sticking. Or you could have a system contamination such as water in the line freezing and causing a blockage.

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RE: A/C LINE GETS FROSTED - 7/7/2008 10:06:10 PM

JUNIOR

Posts: 45
Joined: 10/4/2006
Status: offline

coil piston/checkvalve could be sticking, how can i fix this with out havng to remove the evaporator. i know on hondas you can blow some air through the line and it will normally fix the expansion valve in the evaporator rather than replacing it etc. is this something i can do the evaporator on the 05 tb?

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Post #: 3