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Auxiliary Air Valve

  1. Warm engine to temperature of about 68°F (20°C) and stop engine. Disconnect air hoses and electrical connector from valve. Visually check that diaphragm is partially open. Connect battery power to valve terminals. After 8 minutes, diaphragm should be completely closed.
  2. If not, check internal resistance of valve with an ohmmeter connected to both terminals. Ohm resistance should be about 46 ohms. If valve does not respond as outlined, replace auxiliary air valve.
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