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They were in fact still hot. I dug around in the battery box for the other ends but could not locate them, so I ended up just pulling the cut end out from under the truck, properly capping it off and zip-tying it out of the way. Pretty hacky de-mil process though. Not that I necessarily would...

M1152A1. Pic is taken from the passenger side. This cut harness is right next to the seat. I tried to find it from under the truck but could only see a little section of it. There are two red wires and two black wires that go somewhere.

Thanks for the info! Really helpful. I'll watch some videos on how to use AC gauges and see if that's something I want to tackle myself or hire out.

I did some searching and reading but am not quite sure where to start. New (to me) M1152A1 with factory AC. Heat works fine. When I flip the switch to AC, nothing happens. Looking at the compressor, it doesn't physically engage. Of course, the seller said the AC worked. If that's true, then it...

Finally got a chance to take the truck out and drive it around some. I plugged the module back in while it was running and immediately noticed the fan got quieter and appeared to spin slower. So something is working, though I haven't tested the whole system to the fullest extent. But I'll leave...

Yes, thanks! I had watched that video and have some ideas to try. Here it is for anyone else:

I will try these things when I can get the truck out on the road!

Ok, I did some more reading and have a good idea how to test the system. On a related note, why is there what appears to be clear silicone gooped on various hose fittings? I thought maybe it was just some shade tree stuff going on with my truck but I see it in pics of other trucks too. See the...

New (to me) M1152A1, this thing is in the engine bay, right in front of the driver. It's been unplugged since I got the truck. Google says it's a 'time delay module' for the cooling fan. Truck seems to run and drive fine. Should I leave it unplugged or plug it back in?

I see now in the TMs that the oil pressure can be as low as 10psi at warm idle. Interesting. The seller said he had done engine oil but not portal hubs. I just asked about the other fluids but have not heard back yet.

So I bought this 2007 M1152A1. It was delivered today. The truck seems to run and drive well (though I've only driven it for about 30 minutes). Everything appears to work and feels tight and responsive. https://bringatrailer.com/listing/am-general-m1152a1-hmmwv/ A few questions: 1. The...

I have a M1152A1 as well and I'd also be curious what it would cost to convert to 4 door w/ hard top.

Thought you guys might get a kick out of this short action movie I made. I wanted to shoot something revolving around the HEMTT so this is what we came up with. :LOL:

What would you guys say this truck is worth? It fired right up and ran good. Drove it briefly back and forth but not much beyond that.

Thanks guys. According to the data plate, it appears to have been overhauled in 2008? Does that mean much?

Looking at buying a HMMWV from a local PD. They don't know what motor is in it and I'm new to HMMWVs (previously owned a HEMTT but never messed with HMMWVs). Can anyone ID this for me?

Yea, I verified it was in fact not self-priming. Before I manually primed the system (which is what fixed it), I did what davidb56 suggested in post #71 and disconnected the return hose at the tank, draped it over the side of the tank pointed at a bucket. Cranked the engine a bunch; nothing ever...

I wonder if it's because the last thing I was doing with the truck was donuts in a snow covered parking lot. Maybe that whipped the fuel around too much? It had never done it before...

Problem solved! I used the cheapo hand pump to pump some fuel into that port on the secondary filter block and it fired right up. Capped the port and went for a good 30 min test drive. Ran great. So it had just lost prime somehow. A bit concerning, considering I had just driven it 3 days prior...

It fires right up on ether, albeit only for a second before running out of it. Here's my plan of attack, based on all feedback: - Pump fuel in from the secondary filter port. This should prime everything from the outlet side of the gear pump, through the engine, and back to the tank. I'll...