× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: GM 3800, Why Is this coil output low.
Posted to Technical Discussion Forum on 3/23/2001

[...trimmed text...]

Peter: One of the first thing that I did was to remove the plug wires from the coil and check the output with my adjustable spark tester. I had a spark of no more then an 1/8 of an inch, which elimina... Login to read more.