Question about 2005 Chevrolet Cobalt

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Part under gove box leaking water

Cylinder shaped part under the glove box is leaking. Air conditioner is working with no problems, and car ('06 cobalt) is not overheating. Any ideas what the problem could be?

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  • Anonymous Jul 31, 2008

    I have a chevy cobalt with the exact same leaking problem under the glove box.This is the first time I have had this problem since I have owned this car.We took a trip from the border of Wisconsin to Ohio on the edge of Lake Erie.No problems going,but we had a soaking wet floor on the passenger side all the way back.It is a 2005 model.Could this be a manufacture defect?

  • Mike Wright May 11, 2010

    What is it leaking?



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This happened to me many different times. The dealership kept telling me that it was condensation and that I needed to get a new cabin air filter. I went to another shop that said it was a major issue that needed to be taken care of at the dealership under warranty...

Finally, I complained at the dealership that this was a repeated problem. They looked at what they called a "check sheet" (recalls that they don't notify the customers of) and determined that there was a certain gasket that was never put on at the factory.

They put on the gasket, and I haven't had the problem since.

Posted on Apr 09, 2009

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I have an 05 cobalt which did the same thing. There is a recognized problem with cobalts and doing that. I took it to the dealer and they said that there had to be a plate installed between the heater core and something else. But to no avail . My AC is still leaking. Not large amounts like it used to but still noticable

Posted on Jul 29, 2008


Yea i have the same thing happening with my cobalt and it is just condensation from the ac unit nothing serious just water, the only problem is that that could be a possible rust site years down the line.

Posted on Jul 26, 2008

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A quick scan of fourms through google turned this up in the 2005 cobalt. It has a combined heater/ac core that is under the dash on the passenger side. It may have a drain tube that is pinched/plugged. It's probably condsation. It has antifreeze in it (dayglow green/hot after the engine has been running) its possibly the heater core line that comes in from the engine cooling system.

Posted on Jul 09, 2008

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