1993 Ford E-Series Van Repair Question
Ford E-Series Van Engine Problem
sounds like the idle air control motor is acting up. that may be the idle fluctuation.
as far as the jerking, how old are the plugs???? make sure there is no coolant in the tubes for the plugs as it indicates a bad intake manifold.
i am assuming a 4.6 v8 since you provided no engine size
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it have 5.8 engine
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