F 250 2WD Pickup V8-7.3L DSL Turbo VIN F (1994)
Glow Plug: Component Tests and General Diagnostics
1. Disconnect glow plug/injector harness connectors from the valve cover gasket.
Glow Plug Testing
2. With the pigtail installed, measure glow plug resistance to battery negative terminal.
3. A resistance measurement of 1-5 ohms indicates a good glow plug.
