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Thank you so much for your help, Gary! I've been out of town on business and running around but finally had a chance to put on the new relay last Thursday! My new ST85 relay is in, replacing the old Ford style relay, and the truck is working perfectly now! The old manual glow plug switch was...

So before I began to trace the wiring from the relay down to the plug, I figured I'd test the relay once again - at which point it read the same low voltage as I had been seeing at the end of the links. I then found out that something is broken either with the lug or inside the relay, as when I...

I'll definitely keep that in mind once I track down this wiring issue - I started out low but tried to ramp it up in hopes of it actually starting in the cold.

Awesome, I think that tells me what it is! I tested the voltages going to the glow plugs from the harness and none of them ever crested 0.17v... no wonder nothing was happening! So is the next step to trace it back from the glow plugs to find the problem? I'm worried that, since a little voltage...

So far, I've only bought an M1009 wheel (why oh why, must those 6 lug wheels be so rare). He was extremely helpful, and does his best to have even rare items in stock. I've heard of a company outside of Austin, TX called militarytrucks.com but haven't done any business with them - anyone have...

In the first photo, the loom comes in at the top right of image, where one wire (B.) is connected to the top of the glow plug relay and the second (A.) is connected to a ground on the firewall. This must be where the power comes from, as the other set of wires goes forward to the dual fans...

Ah, ok - thank you! I noticed the electric fans up front - is this a common modification for the CUCVs? I'd heard the 6.2s ran pretty cool. Should I put the temp probe in the radiator & adjust the controller, or just leave it tied up where it is? I'll get some photos of the batteries and glow...

Howdy, all! I believe the glow plug system in my new M1009 is not working, and while tracking it down by the TM, I discovered this interesting little box on the driver's side fender. I believe the police dept. converted the truck to 12v when they replaced the driver's alt with an A/C compressor...

I'd love to hear it if you happen to know it!

Howdy all, this is my CUCV - was military, then police (who hacked it up pretty bad). First photo is when it was being repainted so that I didn't get arrested for impersonating a police office :) - second & third is when it ran in the warm summer months, and the last is all I get to see now in...

Ignore: I believe that my new M1009 has that same kit on it, and if so, the controls behind the dash were identical to a factory set-up. Edit: Found that the PO police dept. hacked a civvy A/C into my M1009, so this isn't relevant.

The civillian Blazer had a lighter curb weight - is the majority of the weight due to the 6.2? What can be done to lighten a M1009, if anything? EDIT: I know that this is resurrecting an old thread, but it shows I used the search button, keeps all the info in one place, and doesn't pollute with...