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Old 05-08-2015, 03:40 PM
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2011 overland AC Defrost noises/ issues

I have owned my '11 overland for almost 4yrs and have had very few issues to date. However, today the A/C suddently stopped working and there is a lound hissing sound when running Defrost or A/C. I did a little searching and didn't find much but are there known issues with the earlier wk2s and HVAC? The A/C doesn't even attempt to cool...it just blows cabin air.

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Old 05-20-2015, 10:02 AM
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Re: 2011 overland AC Defrost noises/ issues

Quote:
Originally Posted by ajs800 View Post
I have owned my '11 overland for almost 4yrs and have had very few issues to date. However, today the A/C suddently stopped working and there is a lound hissing sound when running Defrost or A/C. I did a little searching and didn't find much but are there known issues with the earlier wk2s and HVAC? The A/C doesn't even attempt to cool...it just blows cabin air.
I have a hiss too like a screechy hiss. Still have cold air till evaporator freezes. I've checked pressures and all diagnostics possible with my diy skill set. Depending on your pressures I'd lean towards expansion valve then maybe compressor. In my case I beli its valve since it works till it freezes up.
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Old 06-09-2015, 03:45 PM
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Re: 2011 overland AC Defrost noises/ issues

After two trips to dealer and $150 to recharge to trace leak, dealer finally found a hole in a line due to it rubbing against another line. $400 to replace and recharge and now pushing jeep to cover as it seems like a design or factory flaw. 53k miles and has been hissing/not working since around 50k. It seems like a random very odd issue but figured it might help someone attempting to diagnose an A/C leak.


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