My brother lives out in the country where there are lots of "critters" around. He has a 1997 k3500 Ext Cab Dually 6.5L TD that he doesn't drive often. The other day he found that something had been eating on the wiring harness at the rear center of the engine compartement by the firewall and it will not start now. Does anyone have access to the wiring diagrams for this? Hopefully could email a copy. Thanks

I can email you the diagrams. I own an Auto repair shop and we have All-Data. Do you just need the engine diagram(s)?

THANKS, I DO appreciate that. As far as I know the only wire they chewed on were in the engine compartment. You can email me at CMSEARLS1@aol.com Thanks Again. Chris

I go home for lunch about 1:00 Pacific time. I'll email them then. Glad to help.

Might I suggest if critters are going to be a continuing problem get a full set of GM manuals which are getting harder to come by each passing year due to age of 6.5s in general, fewer people are stocking them, ebay or www.helminc.com best sources for now, even dealers have limited supply of tech data.

Could save big bucks in long run for any future repair questions, IMO this should be 1st piece of any 6.5 owners tool box, few Stealerships have 6.5 techs any more, so you are left on your own in the wilderness (other than us 6.5 junkies here) or be prepared to pay for part swapping troubleshooting which is all most do with the 6.5 now swap out stuff until desired result of getting customer out the door, & charge for something else when that doesn't 100% fix the problem & they come back.

IIRC somebody last month found this site after $700+ of incorrect Stealership troubleshooting for a $50 original problem, $150 set of manuals new is pretty cheap insurance to prove the dealers tech is barking up the wrong tree.

Thanks for the diagrams Wyatt. I DO appreciate your assistance!!!!