Spark from crankshaft pulley
#1
Spark from crankshaft pulley
I have a 97 3500 4x4 that has had three crankshaft sensors and one computer replaced in the last three months. I took it to a dealership for trouble shooting. They discovered a strong, blue spark arching from the crankshaft pulley to the block. When this happens the tach goes crazy. The dealership has no idea what is causing the spark or what to do. Does anyone know what this is an what to do for it?
Thanks,
nbishop
Thanks,
nbishop
#5
It's my pot and I'll stir it if I want to. If you're not careful, I'll stir your's as well!
Is there any kind of rubber insulating the pulley from the crankshaft? Like a dampener. If there is, I can see that a static charge could build up and discharge itself occasionally. I would remove the pulley, clean it up and check that it is solid metal. If there is any sort of rubber dampener on the pulley then either replace the pulley or some add a bonding strap from the pulley to the crankshaft.
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