2002 Jeep Grand Cherokee i need help

2002 JEEP GRAND CHEROKEE

4.0L • 6 CYL • 4WD • AUTOMATIC

FREDTWUMYEBOAH

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i have grand cherokee 4.0L 2002 model. about a month ago my car started misfiring from some of the plugs. so my mechanic detected that the A,B and D coils are not working. so we bought new one to replaced it. but still the problem came back.
what can be the problem

Jun 17, 2014 at 10:02 AM

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