Tim wrote:No, if you speaking of the switch on the accumulator.

Thanks for the reply.

About half of the time I have to jump it out to get the clutch to kick in and that is on a fresh charge. Have checked the connector and wiring and it all looks good.

New to forum and trying to get my 2002 Chevy Silverado AC working. Is it necessary to evacuate the system to replace the low pressure switch?