A/C ACUMULATOR PRESSURE SWITCH REPLACEMENT (Full Version)

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A/C ACUMULATOR PRESSURE SWITCH REPLACEMENT

  

jhplove737 -> A/C ACUMULATOR PRESSURE SWITCH REPLACEMENT (7/6/2008 4:35:39 AM)

Do I need to evacuate the a/c system to replace the acumulator pressure switch  on a 2000 chevy blazer ?

thanks

  
swartlkk -> RE: A/C ACUMULATOR PRESSURE SWITCH REPLACEMENT (7/6/2008 7:19:03 AM)

No.  Any of the sensors on the back of the compressor require that the system be evacuated, but the low pressure / cycling switch located on or near the accumulator does not require the system be evacuated to change.  It has a check valve that will prohibit the release of the refrigerant from the system.

You will want to have a new o-ring if it doesn''t come with the replacement switch.  You will also want some PAG oil to use as a lubricant for the new o-ring.  Once you get the old switch out, clean the sealing surfaces with a clean, lint free cloth.

jhplove737 -> RE: A/C ACUMULATOR PRESSURE SWITCH REPLACEMENT (7/6/2008 10:20:56 PM)

Thanks for the help , I replaced as you indicated system works normal , thanks again!

swartlkk -> RE: A/C ACUMULATOR PRESSURE SWITCH REPLACEMENT (7/7/2008 4:58:08 AM)

Thanks for the follow up!  Glad to help!!

  

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