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View Full Version : Fuel Wiring harness portion going to fuel pump



Jonathan
09-29-2026, 09:26 AM
Does anyone have a good picture or two that shows the wiring going to the fuel pump with the body off of the frame? This short cable and connector are causing me issues and I wanted to get a better look at it and maybe replace it or make it longer. Seems like a bad place to try and see what you are doing. You can only really see the last couple of inches through the access panel on top of the fuel tank. And peering in from the sides around the wheels isn't much better. I feel like I need more slack in this cable and curious if it's just too short to begin with or whether it's tangled on something or routed poorly. Thanks.

Josh
10-01-2026, 01:51 PM
More than half of the time I find the main power wires to the fuel pump on the front harness side are compromised. The insulation is hard and brittle and sometimes falling off leaving the wire exposed. I just cut it back until I find the wire is pliable and patch in a new wire from there. The connector is also a major issue if using the stock style. DMCH switched over to a weatherpack connector a few years back to fix this.