Hi, I'm new to the site. I'm looking for help finding a cycling pressure switch for a 2006 Freightliner Sterling, with a Mercedes Benz engine. Looks like the attached photo....any help will be appreciated. I can get the system to charge with R134A, but the low pressure side goes too low (10 psi). I can only get the compressor to come on by shorting this switch on the connector wire side.
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