Schematics for this truck are not very descriptive. My first question is what is the third wire (black with orange)on the coil for. Shopkey schematics doesn't show it. I ohmed it to power and ground -- it measures 780 between both. I don't know if this is an i...

Summary posted 5/7/2008

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle