Glow Plug Relay Question
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Senior User
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Glow Plug Relay Question
ok guys i did hold a screwdriver across the two post for about a minute and she fire right up no smoke nothing didnt even crank more than once, i replaced it with a cole hersee brand relay, once question tho what wire onpens the relay i have to small red once that where both hott, my truck was warm when i put it on soo i know it wasnt probaly getting a signal to open but how does it work what opens it??
Thread Starter
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Senior User
Joined: Jan 2009
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ok soo when it needs it open it sends a ground to the one small post making the relay open?? soo it was normal with my truck warm that both small post are hott?? i mean i know the one large post is always hott but i was just worried with 2 small post being hott like i said my truck was plenty warm sooo i wouldnt need the glowplugs to start
Lead Driver
Joined: Jan 2007
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From: Kiowa CO
Here's a great write-up on GPR's and glowplug systems
https://www.ford-trucks.com/forums/7...pr-system.html
https://www.ford-trucks.com/forums/7...pr-system.html
