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Heating & Cooling 2nd Gen Dodge Ram Heating & Cooling Problems and Questions.


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  #1  
Old 06-09-2010, 07:30 PM
viperdriver60 viperdriver60 is offline
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Default A/C Problem - blockage???

My A/C stopped working (compressor stopped spinning) so I went to recharge the system.

Some of the hoses/tubes started to vibrate then some coolant actually squirted out the side of the compressor from what I can only assume is overpressurization.

I haven't opened up the system yet, but I suspect a blockage somewhere in the system. Since the Ram uses a fixed orifice tube instead of an expansion valve I'm not sure where the problem might be.

My plan is to open up the system and check the various hoses (and consensor) using compressed air.

Anybody have experience with this kind of problem?
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Old 06-09-2010, 07:35 PM
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That kind of overpressurization is pretty much impossible without the compressor running. Have you put a set of gauges on it yet?
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Old 06-09-2010, 07:42 PM
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compressor started running fine after I got some charge into the system, but after the "squirting 134" i turned the A/C off and haven't turned it on since, haven't put any gagues on it, my initial guess was a bad compressor, but after talking with some people i'm suspecting a blockage in the system
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Old 06-09-2010, 07:45 PM
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I suspect you have a bad compressor which would explain why you were out of refrigerant to begin with.
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Old 06-09-2010, 07:51 PM
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i knew there was a leak in the system as I had to recharge the system last year, I had just not encountered the vibrating lines and 134 squirting out the side of the compressor before...strange
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Old 06-09-2010, 07:54 PM
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You should start with a new compressor and then pull a vacuum on it for at least 30 minutes. If you have too much high side pressure and not enough low side pressure, you can go after the orafice tube then.
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