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Home >> Mazda >> 1984 >> B2000 Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Air Injection System - CALIF >> Component Testing >> Check Valve
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Check Valve

  1. Warm engine until normal operating temperature is reached. Stop engine and disconnect air hose from "T" connector leading to check valve. Start engine.
  2. Slowly increase engine speed to 1500 RPM while holding hand over open end of hose. Check for exhaust leaks from hose. Replace check valve if leakage is noted.
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