Hello, brand new to the forum, just bought a 2002 Excursion. Basically want every one to give me some advice on the 7.3. I have worked on them before so I am somewhat familiar with the engine. I have had a 99 cummins the last 8 years and new everything about it so I am looking for some advice on the 7.3. First thing is that I have an oil leak and I can see that the fan has been blowing it around. I think its up front even though some oil drips in the back. I want to power wash under the hood but in previous expieriances fords don't like to get wet under the hood. Does that hold true with the 7.3? I also have a code and will have to check it again, but I think it said low voltage at injector module. Truck runs well, Edge Juice with attitude, cold air intake, Garrison GTP 38 turbo, 4 inch straight pipe. Lifted with 315's and 158,000 on it. If you all have advice or suggestions, let me hear them, thanks.