Question about 2003 Chevrolet Suburban 1500

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2001 Chevy Suburban: Front A/C is very cold...Rear A/C blows warm

The rear a/c quit blowing cold on a long hot haul up mountain grade pulling trailer. Following that, A/C hose blew and the high pressure switch on back of compressor blew. Replace hose and compressor, flushed, evac, and charged. Front a/c blows ICY cold (Yeah Baby!) but rear still blows warm...if I leave it off for a little while and then turn it on I get a little cold air. Did anyone confirm that there is a rear orifice tube that is clogged? Is it part of the rear A/C?

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  • Chevrolet Master
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It has a thermal expansion valve on the rear evap core top

Posted on Sep 06, 2009

Testimonial: "Thanks for a quick answer...I'm' thinkin I get to open the system, replace the exp valve, and flush evap core. You confirmed what I suspected. "

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I believe there is a expansion valve located on the back part of the air conditioner on the back right side i believe that could be the problem. I think if I am understanding you correctly, your back air is not as cool as it should be or not cold at all. Might want to check this. If I am not understanding you correctly please let me know again what your problem is.

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