2001 Chevy Tahoe Front works, back don't

STONEFEATHER

MEMBER
2001 CHEVROLET TAHOE
V8
2WD
AUTOMATIC
131,000 MILES

First, thank you for providing this service. I have a 2001 Tahoe with 131K miles. The front A/C blows as cold as the day I bought it. Recently, the back just blows air and does not cool. Being as how they are on the same compressor and the front still gets ice cold I am at a loss to understand what is the problem.

Sunday, October 12th, 2008 AT 11:25 PM

2 Replies

BMRFIXIT

MECHANIC
19,053 POSTS

You still have two lines going to the rear high and low
check if the two lines have a difference in temp
if not suspect the orifice valve

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Monday, October 13th, 2008 AT 9:20 PM

STONEFEATHER

MEMBER
2 POSTS

BMRFIXIT, Thanks for the answer. I failed to mention that the A/C is also making a loud clattering sound under the hood. Sounds kinda like a lifter rod but the noise ceases immedeately after I turn off the A/C.

Read somewhere about an accumilatior valve preventing the cool air from being vented to the rear? Make any sense to you?

Sorry to be a pain but times are tough and I just don't want to pay for a bunch of repairs only to find the problem persisit (my luck)

Thanks again!

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Tuesday, October 14th, 2008 AT 7:22 PM