Ram 3500 Cab & Chassi: The Hunt For The Broken Wire

Video Summary

In the video titled "Ram 3500 Cab & Chassi: The Hunt For The Broken Wire," the host from the South Main Auto Channel investigates a 2016 Dodge Ram 3500 that has a warning light on, indicating an issue related to the fuel tank pressure sensor. The key technological concepts discussed include:

• Diagnostic Process: The host checks for a 5-volt power supply to the fuel tank pressure sensor and determines that there is a missing voltage, indicating a potential wiring issue or a faulty computer.
• Wiring Inspection: The host explains the importance of understanding the wiring system, detailing the components involved (ground, signal wire, and 5-volt wire) and the need for a wiring diagram to trace the issue back to the powertrain control module (PCM).
• Types of Wiring Problems: The video outlines the three types of wiring issues: short circuits, open circuits, and high resistance, emphasizing that the problem identified is likely an open circuit.
• Hands-on Troubleshooting: The host visually inspects the wiring harness, discovers a broken wire due to abrasion, and demonstrates the repair process, which includes soldering in a new piece of wire and using protective measures like heat shrink tubing and radiator hose to prevent future damage.
• Final Testing: After repairs, the host checks the live data again to confirm that the fuel tank pressure sensor is now functioning correctly, indicating that the issue has been resolved.

Key takeaways from the video include the importance of systematic troubleshooting, understanding vehicle wiring systems, and practical repair techniques for automotive electrical issues.

Main Speaker

• The host of the South Main Auto Channel.