Coil Pack Failure (EF-EL)
Symptoms
Misfiring on specific cylinders, rough idle, loss of power. May be intermittent initially, then become constant.
Cause
The EF and EL use a waste-spark coil pack (three coils firing six cylinders). Heat and age cause internal insulation breakdown in individual coil towers.
Fix
Replace the coil pack.
Use new spark plug leads at the same time, old leads can damage a new coil pack through increased resistance.
Cost: $100-200 for the coil pack, $50-80 for leads.
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