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Old 11-29-2009, 04:54 PM
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dfordski dfordski is offline
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Re: 1993 F140 4.9L - Bad Miss When Warmed Up

Your just changing the Vac system modulation by removal of the Vac hose. Disconnecting the wires to the map would eliminate the MAP input. I would introduce Seafoam thru the air intake manifold How to Seafoam an Eighth Gen F150 (1987-1991) - Ford F150 Forum - Community of Ford Truck Fans
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