To repair the firewall on a Peterbilt, first, assess the damage to identify whether it is a rust issue, a hole, or structural damage. If it's rust, clean the area thoroughly, apply rust inhibitor, and patch it with metal or fiberglass as needed. For holes, cut out the damaged section and weld in a new piece of metal. Ensure to seal any joints properly to maintain structural integrity and prevent future issues.
wiring harness schematic for 2003 peterbilt 379, from ECM to firewall
between glove box and firewall
You start by figuring out what's wrong with it. Can't tell you how to repair it without knowing that.
Right side of the vehicle, under the hood, on the firewall, inside the HVAC compartment.
There was no 359 in 94. The fuse panel on a 94 379 is under dash on firewall behind the clutch
Peterbilt was created in 1939.
Open the hood. Look on the left side of the vehicle. You'll see a shaft protruding through the firewall. That's the steering column.
One can view the Peterbilt show trucks from the Peterbilt Motors Company and their website. Peterbilt is based in Denton, Texas and was founded in 1939.
If its inside the cab at the firewall, its probably your heater core which is located on the passenger side under the dash. This repair is usually not much fun. If its leaking in the engine compartment near the firewall, its probably a heater hose that is failing. This is an easy repair
Peterbilt is the luxury class of heavy duty trucks. Custom Peterbilt refers to the ability for the buyer to customize the truck per the buyers specifications.
Try a Peterbilt dealership.
Need to know WHICH model Peterbilt in order to answer this.