I have the wiring diagrams for this truck but cannot find the physical Secondary Pump relay.

Looked under the hood - only saw 1 relay labeled. At the module, you have a harness with 6 wires. The fuel pump relay, which is right above the module, has a wiring harness with 4 wires.

99 chevy 2wd tailight wiring diagram C/K Truck & SUV Chassis c pickup / cab & chassis c / chd?. GMC brake lights.

Tiny Just fixed my gmc Electrical Problem Gmc C V8 Two Wheel Drive Automatic Dash. I have a HD diesel dually with a big service/utility bed. If I was more tech-savvy, I'd send you the wiring diagram, but I'm not.Working on your Chevrolet CHD 1 Ton Truck yourself is a rewarding experience.

Give yourself a head start by picking up a repair manual (service manual) at your local NAPA store. An auto repair manual is an invaluable resource when it comes to working on your vehicle for . The Online Chevy C Repair Manual by ALLDATA DIY provides specifications, diagrams, diagnostic codes, procedures, OEM part numbers, technical service bulletins, Chevy factory recalls for all Chevy C systems and components.

I have a HD diesel dually with a big service/utility bed. I’m having stalling issues.

Chevrolet chd diesel stalling. Maintenance/Repairs.

It gives you some more details. If I was more tech-savvy, I’d send you the wiring diagram, but I’m not, unfortunately. Grey wire from pcm to optical fuel temperature.

AutoZone Repair Guide for your Chassis Electrical Wiring Diagrams Wiring Diagrams. Wiring Diagrams. Detailed information on circuit paths, splice locations & more.

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