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No problem. If those circuit breakers are open and don't stay reset you can try swapping them with regular fuses - if those burn out it is likely there is a short circuit somewhere. If they are set and still no heater action please reply back and we can continue further with the diagnostic flow...

The factory solution to all these problems was to replace the "lock washers" with Nord-Lock washers. They are the only thing that works for this application. Put them on ANYTHING mounted to the engine. Starter, Alternator, Pump support bracket, etc. And balance the driiveshafts.

Also - the manuals for these trucks are electronic and the troubleshooting for these systems is "interactive" and walks you through each step - is there someone your relative could talk to in maintenance to possibly get access to the manual for his truck? This level of troubleshooting is not...

Heated Transparent Armor is 24v. Under the passenger kick-panel is where you will find the control module and the circuit breaker module for the system. Remove the panel and the repair manual states the first step is to try resetting circuit breakers CB10X (position 10) and CB19X (position 19)...

Mine is a Gen IV panel on an A1R. 3700SP transmission.

My truck spent it's entire life in the desert of Kuwait and El-Paso and my transmission panel looks/functions perfect. The seats were absolutely destroyed as was a lot of other rubber bits but that panel looks great. It really doesn't seem to be an issue honestly.

You will have to use something really tolerant of heat because inside the cab in the sun the temps can get way beyond what will warp and melt PLA. You would need to use something like ABS but printing with that is a little more tricky and really should be done with an enclosed printer to limit...

I agree - wouldn't spend a dime fixing the 100A alternator. They are undersized to begin with. If you had the 260A it's a different story. Go to a commercial 24v and 24v to 12v voltage converter and don't look back. Or do the conversion to the 200A HMMWV alternator if you feel you need the...

This thread has some good info on what may be occurring. https://www.steelsoldiers.com/threads/lmtv-1078-spare-tire-lift-cylinder-stuck-again.207474/

Please enlighten as to how the ground was incorrectly connected. I've been helping a member with similar problems.

Probably better off calling an equipment/school bus scrap yard or a shop that rebuilds air compressors. The gear is used on many CAT engines.

Caterpillar part number 7C3179

This kind of foolishness is why reprogramming the module is the way to go. You can tell it what to do instead of trying to fool it into doing sort-of what you want. 🤦‍♂️ As evidenced by you being able to hit 80 psi in the tires it shouldn't be a concern even with the warning about the A0's...

85 for highway and leave the others alone. Make sure you have newish tires if you are going to use any setting other than highway. Anything over 10 years old just don't deflate them and start looking for replacements. These tires are VERY flexible and designed to run low pressure (at low speed)...

Will can do them. So can I and several other people. There are no limitations to the settings. You can program any setting to any pressure you want, and program the speed lockouts to any speed you want. Within the ranges supported by the controller anyway - the settings are not specific to...

You can program the CTIS to whatever HWY pressure you want or have it done by a member of the forum. I set mine to 85 psi. You just need a J1939 adapter and a laptop - the Dana diagnostic software is free on their web site.

Not actually. It's a purpose made storage for that specific location/installation.

Interesting - yeah that is the stock mudflap and mount just like is on my own truck.

Has anyone encountered one of these?

Generally the governors are set to 125 on these trucks. Looks a little low. Get an actual Haldex one that's adjustable. The Bendix one's that are non-adjustable suck. I had a Bendix non-adjustable unit on there for a while and it was causing rapid cycling when cold. After a short drive it would...