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Pink only on bottom, blue is on top. Small orange is run in same boot as large orange is in. (Not in pic) This was the relay and wiring of, that was on the truck when I purchased from GL.

GREAT!! :oops: Your probably right!! Makes since why glow plugs went AWOL (did run good for about a day until I install new batterys) Will do diagnosis on GP module tomorrow. Already have new GP's What relay do you reccomend? The posts Ive read has diffent ideas? AC40? ST85 (NAPA)? Thanks for...

The relay was explained as a standard starter solenoid 12v (part#F496 @Autozone) around $15. Crash_AF: The small orange wire is connected, It was behind the larger orange (hidden)run into the boot. Thanks for the observation! The first pic on previous post correction, this is the new autozone...

Thanks for the quick response! I purchased one @ autozone for about $14 (second pic). Notice voltage when key is in run. (depicting bad glow plugs) first pic is the original b4 I replaced. wires were opposite. Wiring new one this way I get 24 on red /12v on pink/ blue grounds/ 0v on gp(orange)?

One thing I am having trouble with, how do you know which small terminal on the GP relay for the pink and which for the blue? switching them purposed 2 scenerios. Is there a meter test I can perfrom to insure? Does the blue wire connect to the terminal closer to the feed(red) or to the orange to...