Help car wont start or do anything

[mr tahoe]

Yup battery was checked and it passed, i even tried the battery on my tahoe

 

[Doubeleive]

ok, so it would make sense to me then that there is bad ground somewhere, I would get a simple volt/ohm meter out and start checking voltages all over, remove your ground cables and check them for continuity, scuff up the mounting post's and re-install, check voltage to starter, main fuse box, bcm, etc...

 

[mr tahoe]

So I checked and i do have voltage to the outer fuse box but nothing to the interior fuse boxbut Whats driving me nuts is how on earth do i have power to my horn

 

[PG01]

Pull the fuse box under hood apart and clean and die electric grease everything

 

[mr tahoe]

Ive done that too !

 

[Doubeleive]

well then that is your shorted location, now to just narrow it down, there is a junction box inside the truck where your left foot would sit, covered with a black cover that pops off, I would start checking between there and the main fuse box.

 

[swathdiver]

Do these auto have fusible links off the starter anymore? I popped a couple of those presumably due to bad grounds or just being a knucklehead and the car went dark.

 

[Doubeleive]

Do these auto have fusible links off the starter anymore? I popped a couple of those presumably due to bad grounds or just being a knucklehead and the car went dark.

I don't know but he said there is power to the main fusebox but nothing inside.

 

[mr tahoe]

Hey guys could it be the main fuse box? I tried the fuse box from my tahoe it has a different code but I got power to the dash wouldn’t start or crank but I got power and when i put the sierra fuse box in the tahoe I get power and it cranks but does not start

 

[PG01]

Hey guys could it be the main fuse box? I tried the fuse box from my tahoe it has a different code but I got power to the dash wouldn’t start or crank but I got power and when i put the sierra fuse box in the tahoe I get power and it cranks but does not start

Under hood fusebox? You used the top of the sierra on the hoe?