Hi All!
I have a 2002 Gmc Sierra 2500hd 4x4 8.1L
Bought truck knowing there is a electrical issue.
I was told, truck was parked at store working fine. came out and would not start again since.
So here is my situation
battery connected and no key in ignition.
If i try to install a fuse into #30 (ECM-B) it blow instantly.
I have pulled out the entire wire harness and inspected and re-dressed.
In process found oil pressure sender broke in half.
I replaced OPS.
While wire harness was removed fuse would be ok.
Plugged everything in with a good fuse in place and all was well until i hooked up the grounds.
There is 3 ground connects. two aft of engine and one left front of motor.
The one left front is 2 wires to one ring terminal and the two aft are single.
All of them a small gauge black with white stripe and in harness to fuse block.
With none of the devices connected touching the grounds to the engine will still blow the fuse.
Anyone seen anything fun like this before?
thanks for your time and thought
I have a 2002 Gmc Sierra 2500hd 4x4 8.1L
Bought truck knowing there is a electrical issue.
I was told, truck was parked at store working fine. came out and would not start again since.
So here is my situation
battery connected and no key in ignition.
If i try to install a fuse into #30 (ECM-B) it blow instantly.
I have pulled out the entire wire harness and inspected and re-dressed.
In process found oil pressure sender broke in half.
I replaced OPS.
While wire harness was removed fuse would be ok.
Plugged everything in with a good fuse in place and all was well until i hooked up the grounds.
There is 3 ground connects. two aft of engine and one left front of motor.
The one left front is 2 wires to one ring terminal and the two aft are single.
All of them a small gauge black with white stripe and in harness to fuse block.
With none of the devices connected touching the grounds to the engine will still blow the fuse.
Anyone seen anything fun like this before?
thanks for your time and thought