The August GM Tech Link (http://service.gm.com/gmtechlink/images/issues/aug04/TLaug04e.html) has three Duramax related articles as follows:

Allison LCT 1000 Transmission (http://service.gm.com/gmtechlink/images/issues/aug04/TLaug04e.html#story1)

Ground Bolt on Diesel Engine (http://service.gm.com/gmtechlink/images/issues/aug04/TLaug04e.html#story16)

Injector Seal on Diesel Engine (LLY) (http://service.gm.com/gmtechlink/images/issues/aug04/TLaug04e.html#story19)

http://www.dieselplace.com/forum/smileys/Geek.gif Edited by: jbplock

That ground bolt was missing off my truck, and the wire was just hanging under the truck. I had to crawl under another truck at the dealer to see where the wire was supposed to be connected. The only performance issue I noticed was that the truck cranked faster after I connected the wire to the block. That was a long time ago.