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Old 09-08-2015, 06:33 PM   #1
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Dash A/C Recharge - Where is the Port?

The dash A/C on my 2002 Ultimate Adventure (Spartan chassis-Cummins engine) is blowing, but the air is not cool. Decided it needed a recharge of freon. Stopped at WalMart for a cheap recharge kit and went out to tackle what I thought would be a simple project. Found the A/C compressor alright with the two lines leading away from it, but no ports for adding the freon.
Anybody able to tell me where those ports (or specifically, the port for the low pressure line) are?
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Old 09-08-2015, 07:27 PM   #2
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TheJanieLynn, look up front around the evaporator coil.
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Old 09-08-2015, 07:32 PM   #3
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I have seen and on my truck it is by the dryer on the firewall.
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Old 09-09-2015, 03:49 AM   #4
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When we had our Ultimate they were up front as everyone else has mentioned.
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Old 09-09-2015, 11:29 AM   #5
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Armed with information from grtharris, tucsonrv, and ranger smith, I ran out to my Ultimate Adventure over the lunch hour. Opened the hatch up front (do you call it a hood) as if to pull the generator out, and there it was, staring me in the face. Actually, at chest height. Two freon lines, one fat and one thin with plastic caps on the ports. I'm shocked that they actually built this part to be maintenance friendly. After work today I'll attempt to charge the system in accordance with the instructions on the can.
Thank-you gentlemen.
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Old 09-11-2015, 09:23 AM   #6
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Just wanted to follow up and let everyone know that the a/c charge process went well. However, I went through two cans (34 ounces) and the system may not yet be fully charged. When you consider that the lines run almost 40 feet to the compressor and back, it isn't surprising. At least now, one line feels hot and the other feels cold and I'm getting some cool air out the vent. Just hoping that there isn't a large leak draining all of the Freon. Multiple cans of that stuff isn't cheap.
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Old 09-11-2015, 07:16 PM   #7
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Dash A/C Recharge - Where is the Port?

My system completely empty holds 3.5 pounds. There is a label on your system somewhere telling the exact amount. I have heard +- 2 ounces should be the range from the mfg specs. Too much is just as bad as too little.




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