On higher mileage vehicles, one or more EGR orifice in the intake manifold may plug with sludge. This can cause the engine to misfire when first accelerating because too much exhaust gas is directed into the cylinders where the orifice is not plugged. Cleaning the clogged passages should correct this concern.
Car problem reports
Problem with your car? See what our experts say or submit your own.
Repairpal verified 2004 Ford Freestar problems