Auto. Trans. Models Only
Disconnect vacuum hose from vacuum switch A and connect a hand vacuum pump to the hose. Apply vacuum to switch. Check for voltage at switch Blue/Black wire. There should be voltage when vacuum is less than 9.8 in. Hg.
Disconnect vacuum hose from vacuum switch A and connect a hand vacuum pump to the hose. Apply vacuum to switch. Check for voltage at switch Blue/Black wire. There should be voltage when vacuum is less than 9.8 in. Hg.