1998 Chevy Silverado High Pressure Switch

1998 CHEVROLET SILVERADO
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DSANDY1D
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Air Conditioning problem
1998 Chevy Silverado V8 Four Wheel Drive Automatic

If I replace the high pressure switch will I loose all my freon and should I vacuum the system when performing this?
Aug 3, 2010 at 2:41 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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