Unkown leak

2005 CHEVROLET EXPRESS
62,000 MILES • 2WD • AUTOMATIC
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ALLANTORGESEN
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I noticed a greenish fluid covering the left side of the rear transaxle on my 2005 Chevy Express 3500. Upon inspection, it appears there is a leak in a silver/aluminum tube that runs the length of the van -- the very slow leak is just above the transaxle (see attached photo). Not sure if this is engine coolant (part of the heating system) or part of the air conditioning system. Any ideas on what this is and repair suggestions?

It is a slow leak -- but it seems to be increasing with each time I drive the van.
Mar 26, 2011 at 3:57 PM
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HMAC300
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if it's greenish liquid it may be coolant although yours should use the dexcool which is red. the coolant should be low if it is. It could also be a/c oil/freon leaking as well....one of them should be low though.
May 3, 2011 at 1:26 AM