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Home >> Ford >> 1989 >> Tempo GL, 4D Sedan, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> THERMACTOR System >> Operation >> Anti-Backfire (Gulp) Valve
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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.