No power to #1 and #4 cylinder from ignition coil.
Wife's van started missing the other day. Popped
hood to find ignition coil was cracked and started
to melt. So I replaced the coil, wires and plugs. Still
missing. So went ahead and replaced o2 sensors,
camshaft sensor and crankshaft position sensor.
Still missing. Took it and had the codes read (sorry
do not remember exact code). But it had to do with
primary power to coil. Their suggestion was faulty
coil. So took off new coil and exchange it. Also
replaced electrical connector to coil. Still missing.
Started digging a little deeper to find out I'm not
getting any power or spark to the #1 and #4
cylinder. Has anyone ever ran into this before?
Did you check the wire going to the plug for a short or crack ?
Also if you are not finding any more problems with the electrical, then check the compression of the cylinders.
I checked wires back until they ran into main harness
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