Question about 1995 Honda Civic

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1995 Honda Civic-AC only blows cool air

A little history- 2 years ago I was charging the AC and overcharged it to the point that the pressure relief valve blew on the compressor. I could not run the AC without stalling the engine. I then had friend with AC equip. pull out all the coolant, flush with inert gas and recharge to the correct amount of coolant. Since then the AC has worked, but not as cold as it should. It slowly has gotten worse over time. My question is- How much damage did I do to the compressor? If I change it out myself, what other parts should be changed at the same time?
Thanks

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  • smithtrip Jun 24, 2009

    The 134a was weighed as it went in and the pressures were checked. I don't doubt there is a slow leak, but am really wondering if the compressor is ok. The AC was not working very well before I overcharged it.

  • smithtrip Jun 25, 2009

    What should the high side pressure be? Is this temp. related?
    Thanks


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The reason it's getting warmer is most likely due to a slow leak. it need the proper amount to be cool. less or more and it will be warm. it's also possible when it was charged he added too much or not enough. also if air is in the system (from not vacuuming the system or in the refrigerant tank) it will not cool as well.

the car need to be recovered, vacuumed (checked for leaks), refilled after purging the refrigerant tank of air.

Posted on Jun 24, 2009

  • Aaron Murchison
    Aaron Murchison Jun 25, 2009

    you'll have to check the running pressures with gauges attached and the car running to tell if the compressor is good or not.

  • Aaron Murchison
    Aaron Murchison Jun 25, 2009

    higher the temp outside higher the pressure. it should be outside temp plus 100. so around 173. if the pressure diffference it low between high side and low side the compressor may be faulty.

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