ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Glow Plug|Service and Repair > < Initial Inspection and Diagnostic Overview
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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 0.1 - 6 ohms indicates a good glow plug. 

 

Glow Plug|Service and Repair > < Initial Inspection and Diagnostic Overview