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Home >> Ford >> 1987 >> Escort GT >> Repair and Diagnosis >> Engine Performance >> System >> THERMACTOR System >> Operation >> Anti-Backfire (Gulp) Valve

Anti-Backfire (Gulp) Valve

The Anti-Backfire Valve, located downstream from the Air By-Pass Valve, diverts a portion of thermactor air to intake manifold during periods of sudden decrease of intake manifold pressure.