laylow8111
New Member
2000 5.4 miss fire after replacing cylinder head. replaced coil packs but keeps coming up with 1 and 2 cylinders coil pack.
miss fire
- Thread starter laylow8111
- Start date
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Mike White
Member
My guess if the packs are good...
-Faulty boot(s). Archs from prior misfires can damage the boot by either creating pinholes or carbon trails.
-Head not seated properly or head gasket damaged (worse case the head is cracked)
-Intake manifold leaking into spark plug chamber(s). The plastic on the bottom wears thin and the water likes to slowly fill the spark plug chamber.
Let us know if you figure it out.
Good luck.
-Faulty boot(s). Archs from prior misfires can damage the boot by either creating pinholes or carbon trails.
-Head not seated properly or head gasket damaged (worse case the head is cracked)
-Intake manifold leaking into spark plug chamber(s). The plastic on the bottom wears thin and the water likes to slowly fill the spark plug chamber.
Let us know if you figure it out.
Good luck.
