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Home >> Isuzu >> 1983 >> Impulse Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Evaporation System >> Component Testing >> Check & Relief Valve

Check & Relief Valve

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  1. Remove check valve and inspect for leakage by blowing air into ports in check valve.
  2. When air is blown into fuel tank side of check valve, it can pass into canister, but should not leak into air cleaner.
  3. When air is blown from check side, the valve is normal if passage of air is restricted.