Diagnose Electrical Issue and Inspect Battery
At 5:18 in
😡 Didn't tell the wife...brought it home and WON'T START!
What happens here
The presenter enters the truck, attempts to start it, and observes that the fuel gauge moves but the brake light dims, indicating a poor electrical connection. He also notes the radio doesn't turn on. He then opens the hood to inspect the battery, a DieHard Red, which he states is brand new. He observes that both the negative and positive battery terminals are loose and have some 'jelly' (likely dielectric grease or terminal protector) on them. He believes a poor ground connection is the main issue, noting that the ground wire is connected to the radiator support and the alternator bracket instead of directly to the engine block.
Goal: Pinpoint the cause of the non-starting issue.
Tools and materials
- 1971 GMC C10 pickup truck GMC — The vehicle being diagnosed
- Car key — Attempting to start the truck
- DieHard Red battery DieHard — Powering the truck's electrical system