Originally Posted by Tech II
I believe you have two crank sensors.......you need the one in the side of the block for starting(not the one behind the harmonic balancer)......
Also check the harness from the crank sensor to the ICM...have seen a loose harness ground out........could be connection at sensor or ICM....could be the ICM also.....
I took the icm off and it was pretty dirty. There was also some water/moisture in the icm where the crank sensor pluggs into and the male part of harness. I got the icm dried off but it looks like male part of the harness still has moisture coming out of it and I'm not really sure how to get it all removed.
I wasn't able to check the rest of the harness from the icm to the crank sensor or the sensor itself because I wasn't sure what all had to be removed and haven't had much luck finding what to do online.
Also is there supposed to be any type of grease on the back of the icm that mounts to the steel plate? When I took the icm off there was mainly just dirt.