Compressor By-Pass Valve Check
Remove compressor by-pass hose from engine. Using vacuum pump, apply 10-15 in. Hg to port "A". See Fig 1 . Air should flow through port "B". If air does not flow through port "B", replace compressor by-pass valve.
Remove compressor by-pass hose from engine. Using vacuum pump, apply 10-15 in. Hg to port "A". See Fig 1 . Air should flow through port "B". If air does not flow through port "B", replace compressor by-pass valve.