people just installed my new motor got everything hooked up i think, when i turn the key on the relay hanging on the firewall driv side clicks, also sounds like my intank pump is clicking, also injection pump or cp3 whatever it is is clicking now when i unhook from the injection pump the solenoids over at the pass side batteries begin to click truck wont start , also instrument cluster is not workin but mil light is on i have lots of fuel but it shows i have none, voltage meter nothing please bail me out here im up to my ears in workin on this thing im thinkin maybe a bad ground also where does the pass side neg cable ground to straight to motor, i know guys and gals lot of typing but im losin it slowly pack o matches are lookin good
thanks
cory gale
2004 2500 163k brand new motor no thanks to dealership
also should i prime my fuel system if so can you let me know how i dont wanna mess with the wrong line

Also when i try scanning with the obd2 it cant connect *&^&^(*)
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Go over the entire egine bay with a fine tooth comb looking for grounds not connected. I had a similar experience with my Suburban a few years ago. Dash wouldn't work properly, starter would not turn and all it turned out to be was a very small ground on the front of engine. Hooked it and engine fired within first turn.

 

yep was a ground thanks man

 

Nice piece of help there!

 

You're welcome. I am still amazed that the little ground wire I left off made so much difference on my Suburban. It wasn't no bigger than an 18 or 16 gauge, but wouldn't even let the gear position indicator work right.

 

If that 18 ga wire is all that your starter has for the ground, it is scary.
All engines I worked on have a braided copper strap for engine ground.

 

It wasn't the main ground for the engine coming from the battery, but a small ground that attaches to front of engine near timing cover. It must be a ground for computer or some of the relays. I do know before finding and putting it where it belonged, when you turned ignition switch to the "start" position the dash would go dead including the gear shift position indicator. This was on a '97 . All of this was controlled by the computer. After engine started, only thing left was to set timing.