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Every unit with the removable chip is going to be just a PROM chip. We were all mistaken in calling it an EPROM chip earlier. Really, for this discussion, it's just semantics...I just don't like carrying on saying the wrong thing once I realize I was saying the wrong thing. The newer style of...

Have a correction to post here... we're looking on non-programmable PROM chips for this TCM. As an FYI, later model years will use a different TCM that's programmable in itself, no PROM, EPROM, or other user-removable chip used. Some other details... Stumbled into this thread, which has a good...

No, this is the program chip in the transmission computer. We don't have an engine computer in our HMMWVs unless a non-military swap had been done. I saved an extended list of EPROM chip numbers on my desktop. I'll try and find it and give you an engine/trans combo for this chip. I'm also...

Damaged TCM or EPROM chip? Does anybody know of any diagnostic tests for the TCM itself to ensure its internal logic isn't borked? It's literally the same as any old 4L80E GM TCM, so a diag. must exist somewhere.

It's in the FAQ's: http://www.steelsoldiers.com/faq.php?faq=vb3_reading_posting#faq_vb3_attachments Basically, you have to be in the "Advanced" mode instead of just a quick reply. (While I'm writing this post, I see a "Go Advanced" button that takes me to a more sophisticated post editor.)...

This looks like a pretty thorough summation of all the diesel fuel issues that occur: http://www.diesel-fuels.com/bad-diesel-fuel.php Bacterial growth, water in tank, fuel forming polymer chains from recirculation... Lot of possibilities. Seems like the things to do is ensure you have a clean...

Again, I hate to be following behind you like this again and it's nothing personal, but I have to give fair warning that starting fluid is known to cook the glow plugs in these engines in as little as a single use. It's a very expensive proposition and it's honestly far cheaper and easier in...

I have to null one item on here.... don't bring starting fluid. The engines in these use glow plugs. The starting fluid cooks the glow plugs in as little as one shot and will cost you $80 to replace the set, at a minimum, assuming you don't damage something else with it. To keep you with a...

Seconded. I've been wanting one of these so that I can have just one rivet tool and can actually replace some of the rivets in corners, but I can't really afford the $200 for the basic kit/$600 for complete kit. I think I'd do $300 for a complete if someone had one...

Negative. The parts manual kinda makes it look like that's the case, but the original HMMWV one is a strip of LEDs. Honestly, the parts manual is a bit of a cluster for the 4-speed shifter, because it's showing a configuration out of an H1 (notice that the shape is different, and there is a...

My worry here is 12V vs 24V. If it's LED, you'll have to step it down at the connection point. If it's incadescent, then we can just change the bulb.... Secondary worry is water resistance. Last I checked, Impalas weren't built for water fording, so it's just another step that might have to...

As a heads-up, upload those images directly to this site next time. I can't access any imgur/most outside image sites from work and I'm excited to see what you did, plus those outside images site always delete the images at some point, leaving readers 1 or more years later with a post lacking...

I'd recommend hitting up your local Menards, Harbor Freight, or whatever hardware store you have near you that carries a wide variety of tools. You can get a hand Rivnut/Nutsert/Threaded Nut Insert tool for under $15. That's such a brilliant idea that I never thought of. The tool works by...

I'm of the camp that thinks it won't hurt to pop off the glow plug wires and do a quick check with an ohmmeter just to be sure they're in tolerance before putting on a high dollar S3, but a month isn't a very long time. If your old starting control box wasn't defective and you're just going for...

Seems like the DAGR unit would work, being on the safe side. Garmin, nor any merchant, published specs on the antenna compatibilities of the Montana 600-series. Instead, they just point you to a model of antenna to sell the end-user. Luckily, someone somehow got some specs for the antenna...

With a buddy around, you can get that one done lightning fast. I'm pretty sure that was the first thing I did on my HMMWV and it only took 10 minutes with my buddy there to start the bolts while I lined up the box. Cleaned the cable contacts, applied a small amount of dielectric to protect the...

This is the relationship that I want with our PD. Being a massive metropolitan force, that's a tall order to work up here...

Anybody know if these have any compatibility with Garmin GPS units? My Garmin Montana has a lot of very desireable, useful features to go to work in a HMMWV (most importantly, I already own it). Would be nice to get to use the PLGR or DAGR antenna on it, even if I had to make or buy a cable...

At the top of the page on this website, you'll see the "Technical Manuals" section, go there, go down to modern vehicles, and find the various topics in there that relate to the HMMWV. You can get the operator's manual (important use and preventative maintenance instructions that might not be...

Power steering bleed is in the manual, too. To summarize it, do the following: Remove power steering cap, fill reservoir to full via the cap dipstick markings (cold mark if engine is cold), LEAVE CAP OFF. Apply handbrake and chock a rear wheel on both sides. Raise the front of the vehicle so...