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Home >> Ford >> 1984 >> Bronco II Standard >> Repair and Diagnosis >> Engine Performance >> System >> EGR System >> Testing >> Carburetor EGR Port

Carburetor EGR Port

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  1. Attach vacuum gauge directly to EGR carburetor port, using hose. Start engine, quickly open throttle to halfway position and close.
  2. Observe vacuum gauge for quick rise and fall as throttle is opened and closed. If definite vacuum is evident, port is okay. If not, port is clogged and must be cleaned.
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