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A/C ACUMULATOR PRESSURE SWITCH REPLACEMENT

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Blazer Forum >> Mechanical & Maintenance >> General Tech Help >> 2nd Gen (1995-2005) Tech >> A/C ACUMULATOR PRESSURE SWITCH REPLACEMENT Page: [1]
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A/C ACUMULATOR PRESSURE SWITCH REPLACEMENT - 7/6/2008 4:35:39 AM   
jhplove737

 

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

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


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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.


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Kyle-

The new - '04 Buick Rainier CXL
The old - '00 Olds Bravada - Traded 5/30/07
The restoration - 1970 Chevelle

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

 

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

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


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Thanks for the follow up!  Glad to help!!

_____________________________

Kyle-

The new - '04 Buick Rainier CXL
The old - '00 Olds Bravada - Traded 5/30/07
The restoration - 1970 Chevelle

(in reply to jhplove737)
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