1994 V-6 silverado 300,000 miles. 134a
Airconditioning has 50 psi on low side with compressor running and accumulator low pressure switch jumpered out. When switch is connected to accumulator compressor will not run. 12 volts to switch and nothing out. Can the low pressure switch be bad, changed out without pumping down system as noted in this forum? What pressure does the switch open and close at?
Saturday, August 4th, 2007 AT 10:04 AM