why misfiring cylinder #4&#7...why air conditioning compressor will not kick on? on 2002 Dodge Ram Van 1500

recently replaced spark plug wires, ignition coil, cap & rotor, but still major loss of power...misfiring upon shifting into any gear/

by in Avondale, AZ on May 01, 2013
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1 answer
ANSWER by , May 01, 2013
Who did the work? Plug wires routed right? Misfire at road speed? May need freon in AC system.