Cordell. Where are you from? I've have a few vehicles try and flip out their
You try the H2O on the fuel filter nuts yet? If you're getting a single knock sensor code you may be in the clear driveability-wose for quite awhile - best to work on the more pressing for sure. When you do get to them I sealed mine in an 01 yukon about 75k ago with layered LIQUID ELECTRICAL TAPE all the way around including the harnesses - WAY better than RTV and it lasts forever. Good luck with the build, i'll check back for updates.