Question about 2003 GMC Yukon XL
I posted a problem back in Aug. 08 about the leak on passenger side from the a/c.I have since cleared the drain tube with an air hose and also a piece of wire (wire was inserted only about 10 inches) still the problem remains the same. I pulled the carpet back ran the a/c on high for a few minutes and was ready with flashlight in hand.. sure enough I saw the drip,drip,drip coming from end of the evaporator case (black plastic box looking thing that is located directly under and behind the glove box) where it meets the firewall , where the drain tube goes to the outside. What can I do about this short of pulling the whole dash out?
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Posted on Jan 02, 2017
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Check your radiator fluid level, if it is low it is a good chance your heater core or the hose to the heater core has a leak. The heater core is a small version of a radiator which has the air from the blower blow across it to force warm air into the cabin of the vehicle. You will need to probe under the passenger's dash to locate the leak.
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