glow plugs

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Jun 28, 2014 | 07:48 PM

Oldschoolfordlover86

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glow plugs

Hey guys I have a glow plug problem i am in the process of by passing the glow plug controler when I pulled the purple wire off the relay and tried to test it from the relay to the battery when I did this nothing happened so I thought maybe the relay was bad so I changed it and that still didn't fix it so I thought maybe i got a bad relay so I bought another one and when I tried testing it again with a wire straight from the relay to the battery still nothing happened how ever when i by pass the relay all together the system works so I have no idea what's going on. Please help

Jun 29, 2014 | 01:33 AM

Macrobb

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Joined: Dec 2011

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The relay needs both power and ground - one small terminal to 12V, one to ground.
The way the system works is that one terminal goes to key switched B+, and the other goes through the controller to ground.