ground issue 06 2500hd 6.0L

[Rich Quezada]

how many ground wires are there and where are they all at?will run rough random misfires then go over a bump run fine bump back to misfireing....ground right?

[Cosmic Charlie]

Mechanic’s answer

http://www.justanswer.com/chevy/0sa52-need-locate-grounds-truck.html

 

G100

In the Forward Lamp Harness on the Lower Left of the Radiator Core Support

Power and Grounding Component Views in Wiring Systems

G101

In the Chassis Harness, left side of the engine near the generator

Power and Grounding Component Views in Wiring Systems

G102 - Except 4.3L

In the Engine Harness, on the left side of the engine block, #3 cylinder area, below the exhaust manifold

Power and Grounding Component Views in Wiring Systems

G102 - 4.3L

In the Engine Harness, Right Front of the Engine near the Crank Sensor.

Power and Grounding Component Views in Wiring Systems

G103 - Gas

In the Engine Harness, on the Left Rear of the Engine Block

Power and Grounding Component Views in Wiring Systems

G103 - Diesel

In the Engine Harness, on the Right Front of the Engine Block

Power and Grounding Component Views in Wiring Systems

G104 - 4.8, 5.3, 6.0L

In the Engine Harness, on the Left Rear of the Engine Block

Power and Grounding Component Views in Wiring Systems

G104 - 4.3 and 8.1L

In the Engine Harness, on the rear of the left Cylinder Head

Power and Grounding Component Views in Wiring Systems

G105

In the Main Battery Harness, Main Battery Ground on the Right Front of the Engine

Power and Grounding Component Views in Wiring Systems

G106

In the Main Battery Harness on the Right Side of the Engine

Power and Grounding Component Views in Wiring Systems

G108 - Diesel

In the Engine Harness on the left front of the Engine Block

Power and Grounding Component Views in Wiring Systems

G109 - Diesel

In the Engine Harness on the Right front of the Engine Block

Power and Grounding Component Views in Wiring Systems

G110

In the Chassis Harness on the frame to the rear of the left front tire.

Power and Grounding Component Views in Wiring Systems

G200

In the HVAC Harness, on the Right Side of the I/P Near the A-Pillar Below the I/P Top Cover

Power and Grounding Component Views in Wiring Systems

G203

In the I/P Harness, On the Left Side of the I/P Near the A-Pillar Below the I/P Top Cover

Power and Grounding Component Views in Wiring Systems

G302

In the Chassis Harness on the frame to the rear of the left front tire.

Power and Grounding Component Views in Wiring Systems

G304

In the Body Harness, Under the Passenger Seat

Power and Grounding Component Views in Wiring Systems

G305

In the Body Harness, Behind the Drivers Side B-Pillar Trim Near the Bottom

Power and Grounding Component Views in Wiring Systems

G306

In the Body Harness, Behind the Passengers Side B-Pillar Trim Near the Bottom

Power and Grounding Component Views in Wiring Systems

G390 (Crew Cab w/Rear Window Defog)

Defogger Grid Harness, Near C-Pillar

Power and Grounding Component Views in Wiring Systems

G401

In the Chassis Harness, On the Spare Tire Hoist Assembly

Power and Grounding Component Views in Wiring Systems

G402 (Export Only)

In the Chassis Harness, Near the Rear Bumper Assembly

Power and Grounding Component Views in Wiring Systems

G403

In the Chassis Harness, Near the Left Rear Body Mount

Power and Grounding Component Views in Wiring Systems

G410

In the Body Harness, Right Rear Interior of Vehicle Behind the Right Side Cargo Area Trim Panel

Read more: http://www.justanswer.com/chevy/0sa52-need-locate-grounds-truck.html#ixzz3koDKQmAZ

[Rich Quezada]

THANK YOU VERY MUCH

[I30max]

Does anyone have pictures of locations of ground wires for 2004 Sierra 1500 SLE 4.8L? I think I am having grounding wire issues with my truck and the above links are not working. I want to locate them all and sand down and clean up the connections/contacts, if I know where they are.

 

Thanks for your input in advance.