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GenX, What does the power panel look like? Got a pic of the front shock absorbers? General, what exactly does a wtec4 control head look like?

Yea, those look like the digital gauges, look for the MMDC box under the drivers dash, about eye level while standing on the ground when you open the door. Like In Generals pics, has 2 small airlines running to it. I suspect your power panel has 4 black modular relay/fuse boxes inside it. A1...

That shouldn’t be an issue as I believe it connects to a hose on one end. It is just a PITA to get to and wrench on it:)

Looks like a C7 to me… Whats the dash look like? If it has the integrated/bussed gauges, you air pressure gauge issue just became a little more involved, as those sensors are soldered onto the board in the gauge controller module…

1. One half of The red switch manually opens/disables the battery cutoff relays, the other half disables both the ignition switches(Inside and outside). 2. If you are keeping a 4 battery bank, yes. The only way the 240AH bank works mathematically with the 100A dual volt is to shift all the 12v...

Well the pressure gauge sender and warning switch are in the same unit, so swapping gauge heads/sensor wires should help you narrow down which is acting up...

A lot of times that single check you pictured and the 2way checks behind the drivers grill simply get crap in them, but more than likely they have some internal corrosion.. the air leaking from the red gladhand can come from either that valve or the 2way. Noting when it is leaking can give you...

Yep the fronts are innies, but must be vented when not in use as a leak in the checks downstream can cause issues if that air is not allowed to escape thru the vented covers. The most likley place for a leak are the 2way checks under the drivers floor/behind the grill. The top one connects...

It is not reprogramming, but relearning. The Throttle position sensor info plays a big part in how the transmission shifts. On the A0 there is a cable actuated throttle position sensor that serves this purpose exclusively. Also using throttle cable to actuate the governor, the possibility of...

The LBCD is a device that monitors the alternator load and disconnects the grossly oversized battery bank, using the relays in that added box, to keep them from killing the alternator… probably the biggest problem That plagues the A0/A1 LMTV is the mismatch they created by pairing a 100A dual...

That is probably the largest differentiator between early and later version A1. It means you have the LBCD and battery disconnect relays and controls.

Depends on which version A1 you have? Does it have a box to the rear of the battery box?

Its n the Dana service manual, 5 solids indicates an internal fault… the units are potted in a most nasty fashion. I have not heard of anyone recovering one with 5 solids…

I did 2 videos, this link is to The latest version, watch both of them. Tgere is a link in the description of the first vid to the first wiring diagram. I have not done a diagram for my latest version(added a latching circuit to the control relay). The system is not particularly complicated...

5 solids? Internal fault, it’s now an interesting coffee table conversation starter, as it is a little bulky to try and skip across a lake… Mine was that way when I got my truck, prime motivator for my going manual…

NP, you will want to confirm the throttle cable and speed selector block on the governor is roataing properly between the idle and high speed stop screws before you run perform the recal…

It is 5 times by the way(on till you get a transmission display then back off again). On the 6th power on, the shift points are cleared, fully depress and release the gas pedal to learn new 0-100 TPS position info. Then press the start button, and go drive the truck so it can re-learn the...

Yep. Another couple things to look at are all the shoes and drums the same width and depth. All my shoes are properly placed within the drum, so I have nothing to compare to…

Yea that's all i am using(pump and flow control valve), my spare is relocating also…

Could be linkage/cable. The speed control Block on top of the governor rotates between the low speed and high speed stop screws. First step is insuring that block touched those stops with o and full pedal application. If you are idling too fast the trans wont allow a shift out of neutral…...