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I think I got it!. I installed the relay up side down, this reversed the small wires and also the large ones!. I tested the relay and it is no good. I will order another for a cucv(hvy duty one) and install it correctly..!! When I took the small wires off the wait light started to work...

Thanks. I will check the relay to see if its grounded all the time. Kevin...

Thanks, I just replaced the relay..Was told I cant use a ford relay. Need a heavy duty one. I will replace it with a OEM. I jumped the relay and it worked fine. Maybe its grounding like you said. On my M1008 the small pink small wire gives the relay 12vots when you turn the key on, when the...

It happened when I put 24V to the relay bypassing the thingy behind the engine that reduces the voltage. When I got the truck from the military someone borrowed it and I did not notice it missing and wired it wrong. after 12 starts the glow plugs burned out and i figured it out. Trying to put it...

hEY GUYS, My glow plug relay will not turn off. i have to manually unhook the 12v lower smaller wire (pink/w blk stripe) after i start the truck. because it gets 12volts when the Ing is on and after the truck starts it stays 12volts. wasted 8 glow plugs earler..i do not get the wait light at...