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I had to dig into my stash and unbox a GM circuit card. I slipped it in the box and turned the key. Clunk the glow plugs solenoid engaged and cycled. I started the M1009 and checked the lower stud on the relay. It cycled 4 times and shut the glow plugs off. Happy Happy. The shift selector...

Still wondering what that thing is on the injection pump. Does anyone know a good part number for a fast idle solenoid? The GM part number is discontinued.

After long thought and 9 hours on my full time job I was able to come home and solve the problem. I think the initial problem was all the hacking that had been done to this poor Red Devil. I had pulled all the glow plugs tested them and reinstalled them. The relay on the fire wall was...

I clipped my test light on it and checked all the fuses for power. I just have it clipped on and the test light lights. I think that means I have ground. I agree that it is strange. I changed the glow plug harness and still have the same symptoms. Now I don't feel bad when I say my new truck has...

That would be too easy. I have the cluster out and everything working on the cluster. I replaced the star washer and bolt on the ground at the E brake. Still no joy. I removed the glow plug relay from a running CUCV that operates perfectly installed it and the relay will NOT engage. I have 2...

Have you ever seen one peg the volt meter? I wonder if that could have been from the bad Gen 2.

What is that thing on top of the injection pump cover and why is the advance wire hooked up to it? Does anyone know?

What is this on the injection pump? could it disable the glow plug relay? Should I leave it hooked up or disconnect it?

:)I can do that I think. I also have new cards with fancy lights I never used. :)I could always put one of them in if you think it would be safe to do so? Well?

I have it mounted on the firewall. I had these HD relays on several CUCV's in the past. The metal body of the relay is mounted in fresh drilled holes with new screws. Anything else I can check? Also the volt meter just pegs itself when I turn the key on. I guess I must get the fluke out. Does...

I am at this point with a truck I am working on. Everything is wired stock but I can not get the relay to clunk in. I did a visual of the glow plugs. They are all good. The wait light comes on but the relay does not close. I swapped the relay same results. I started with just Gen 1 light I found...