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Vacuum Switch C

  1. Disconnect vacuum hose to vacuum switch C and connect a hand vacuum pump to hose. Apply vacuum to switch. Check for voltage at Black/Red wire (1300/1500 HF) of vacuum switch C.
  2. Voltage should be available when vacuum below 3-6 in. Hg (1300/1500 HF) is applied. If there is no voltage, replace vacuum switch C and retest.
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