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Sounds like it. Whoever wired it might have wired the fan current through the switch and it's probably not rated to handle it. This burnt out the contacts in the switch. A possibility you should investigate anyway.

C9 is way too much torque for the Allison 3070 or 3700. Both are officially rated at 860 Ft/lbs and according to sources at Allison that FMTV owners have spoken with it is considered OK to fudge that up by another 100 Ft/lbs so at the highest rating of the C7 we are at 932 Ft/lbs of a...

If you have the full gen 2 system with the military condenser, etc - the official capacity is 4 pounds (64 Ounces). I was advised by an experienced Motorpool vet that 3.5 lbs is usually where they find they work well.

Operator level PMCS (After Operation): 1. Check fuel/water separator (Figure 4, Item 3) for leaks or damage. Notify Field Maintenance if leaks or damage are found. Class I leak exists. Pass Fail 2. Check for presence of water in bowl (Figure 4, Item 4) of fuel/water separator (Figure 4...

That's an option. I did mine with a kit from Parker - took about 30 minutes. Learning achieved!

Need to rebuild it. There's a piston seal in them that turns yellow and crumbles into tiny bits.

The DPA-3 works totally fine with my C7 over serial. And the speed is basically identical from what I can tell vs. the DPA-4 - It doesn't seem like the limitation is the interface between the DPA and the PC. USB is nice since it will work with more laptops. I do like the serial cable itself...

DPA 3, or 4/5? All of them have had NSN's at one point. I know the DPA 5 PRO is currently fielded - 4910-01-689-2353

So explain why DLA sells the ICE kits on Govplanet with these supposedly "restricted distribution" TM's on CD's in the kit? They make the units pull the hard drives out of the MSD's. But they leave the sealed discs with all the TM's on them. Hundreds have been sold on eBay with these discs. So...

The reality is that no one actually cares - it's a cargo truck not a weapon system. Ukraine has all of the manuals and a whole bunch of MSD V3's - I know units that were directed to turn some of their equipment in for disposition to Ukraine. Not to mention we gave them the TRUCKS themselves...

Oh I'm well aware of what it does and how it works. I do diagnostics and re-rates for people. But a scan tool isn't a shop manual. That's why at my shop I have multiple scan tools, a PICOScope, DVOM's, and a subscription to Shopkey (Snap-On/Mitchell) and other resources. You are ignoring all...

Which gives you codes and maybe some useful live data. Don't get me wrong - it's the critical first step. But it doesn't tell you what to do with the strings of digits you get out of it. It's just one piece of a much larger puzzle. And yeah you can pull the codes, ponder at the live data with no...

Correct. It has the A1R and the A1P2 which really helps with A1R information because the A1P2 shares the C7 and later Allison. The military doesn't call them A1R - they just call it an A1 with a serial number above 100,000 User friendly..... I mean it's designed for soldiers to use..... There's...

Yeah the DPA 3/4/5 is a good J1939 interface adapter. The military used them in the STE-ICE kits and they are still in the system available to order for unit level diagnostics. That's just part of what the military laptops do though. They also have all the (gigabytes of) manuals integrated...

I build MSD V4 laptops for our trucks if you are interested. I have a black SWICE kit available at the moment. Black SWICE kit and Dell 7214 with all manuals, CAT ET, etc is about $2500. These will not only communicate with the truck but with the electronic manuals it will walk you through the...

There isn't much point. You could (I think, in theory.....) re-wire the truck to run 100% 24v since all the lighting that was 12v to "take advantage of commercially available parts" has now been replaced with 10-30v LED's that could care less. And the existing wiring is oversized for 24v being...

It can be done, but requires consideration of the balancing - the CUCV did this correctly in the 80's. You use two 12v isolated ground alternators - one for each battery. The CUCV's Delco 12si isolated ground 100A alternators were paired either with a pair of 6T's or a pair of group 31's. This...

Alternatively - The Dell 7214 rugged laptops that the military currently uses for the MSD-V4 are rather inexpensive used and they have hardware serial ports. Excellent diagnostic laptop to keep in your truck and pair with a STE-ICE test kit.

Should be feeding air from the charge pipe / manifold so the compressor gets the advantage of turbocharger boost pressure on it's inlet - turbocharger acts as a first stage air compressor and the piston compressor benefits from intercooled charge air...... Some small amount of oil is normal...

A1+ trucks are computer controlled. The engine control module (ECM) controls fan operation. The ECM has quite a few sensors - which engine do you have? 3126b or C7?