Question about 2000 Nissan Xterra

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I have a 2003 Nissan Xterra that slowly after 7 years ran out of refrigerant. I bought a can of R-134A and a hose - but no guage. I emptied the bottle into the Low Pressure fitting and the car instantly started to produce cool air.. I dont believe that there are any leaks in the system .. but want to know if I should add another can of R-134a ? The A/C does nt get super cool , but definately colder than before. Do I need to purchase a compression guage to be sure and then add another can if it show low pressure ? Whats the norm to fill an empty A/C system in the Xterra ?

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Don't know what the capacity of your vehicle is, but if there is a leak, the lubricating oil that also resides with the refrigerant has gone as well. If that lubricating oil is not present, the compressor can be damaged. In order to ensure a good working AC system, a technician needs to service it.

Posted on Sep 07, 2010


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Posted on Jan 02, 2017


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  2. Locate the low side AC line (will have a valve and cap similar to the cap on a tire)
  3. Insert the oil or R-134A can to the hose (Do not turn the screw to puncture the can yet)
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