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Home >> Buick >> 1980 >> Skyhawk Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Gas RECIRCULATION (EGR) System >> Trouble Shooting >> Rough Idle And Stalling

Rough Idle And Stalling

Hoses routed improperly. Leaking EGR valve, loose attaching bolts or failed gasket. Thermal control valve or vacuum switch malfunctioning. Improper vacuum to EGR valve.

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