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Replacing A/C Low Pressure Switch- 2000 Blazer

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Old 03-31-2010, 10:46 PM
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Default Replacing A/C Low Pressure Switch- 2000 Blazer
Can you replace the switch without replacing the freon? I thought there was a valve that let you replace the switch, but a friend of mine said I would have to recharge the system.
 
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Old 04-01-2010, 06:24 AM
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You can replace the low pressure switch with the system charged. There is a check valve in the connection. The high pressure switch is a different story.
 
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