88 B2600 2.6L

Tnwalker

Was running, but blowing smoke. Replaced cylinder head, put everything back together but would not start. Replaced coil and ICM in distributor. Got 12 volts on positive side of coil until I hooked up the blue wire from distributor to the negative side of coil, then only 6.58 volts on positive side of coil. Also Replaced ballast resistor.

Mr_Shiftright

Did you use a spark tester? What did it show?