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A/C Pressure Switch TESTS For Chevy Silverado Trucks EASY!

How to test Chevy Truck AC pressure switch. This GMT800 Cateye truck's AC system isn't working right and we need to diagnose it. These low pressure and high pressure switches stop the AC compressor from coming on if the R134a refrigerant is low. This will help diagnose a bad ground wire and if your pressure switches work right. Vortec V8 engine repairs. PARTS BELOW: If the R134A AC refrigerant is low the A/C compressor will stop coming on. How to test the low pressure switch, high pressure switch, A/C relay, and A/C fuses. Tools: Soldering Station: https://amzn.to/4ocYydt Cordless Ratchet: https://amzn.to/3RK4xKJ Multimeter: https://amzn.to/3OekjZa Low Pressure Switch: https://amzn.to/4f6X7IX Timestamps: 0:00 Jump Low Pressure AC Wire 1:05 A/C Fuse Testing 2:16 AC Relay Testing 2:36 BAD Ground Wire? 4:12 Probe PCM 5:10 A/C Fixed? 5:38 Outro Air conditioning repair tips work for 1999-2007 Chevy Silverado, Tahoe, Avalanche, Suburban, GMC Sierra, and Yukon Denali GMT800 Cateye and Bubble Eye trucks. Vortec V8 Engines: 4.8, 5.3, and 6.0 gasoline engines. Trucks: 2001 Chevy Silverado 5.3 Vortec V8 5.3 Z71 2002 Chevy Avalanche 5.3 Vortec V8 Engine 2006 Chevy Silverado 1500 4.8 Vortec V8 Engine ***Disclaimer: Matt's Shop shall not be responsible or held liable for any property damage, injury, or financial loss, costs, or expenses that may occur from the purchase or use of the products featured in this video and or attempting to duplicate repair procedures. This is for entertainment purposes only. No warranties express or implied.*** As an Amazon Associate I earn from qualifying purchases. #mechanic #chevy #trucks #automotive