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Leveler air(from the ports on the front of the leveler valve should feed both airbags equally(those 2 ports are tied together in the valve). The check valve is in line to allow flow BACK to the manifold when pressure is removed/vented when the cab suspension valve is released. If that check...

K26 should stay on till you shift out of neutral the transmission neutral signal controls its power and its ground is fixed. K11 cannot come on unless K26 is on as k26 provides the power to k11... K11 also cannot come on unless you have an oil pressure idiot light as the oil sw on the engine...

So 3126, high temp light should be ~230F either controlled by the ECU or a thermal sw on the thermostat housing… was your fan cycling/did it engage above 205F? With air tanks full(dryer purges), shut down the engine and with the ignition switch off, reach in under the front of the truck and...

Had some friends stop by and help me put up the first wall panel:)

K11 does double duty. when energized it provides power from CB77 to the start button. When it de-energizes it provides that same power to the alternator to energize it after start. K26 provides the power to K11s coil and the oil idiot light ckt provides the k11 path to ground. So as soon as...

Hmmm well the no clicking is a significant clue. If it were a starter issue you should still get the aux start relay down on the drivers frame rail clicking when the button is pushed... The LD's that are missing are the more significant clue. LD26/K26 neutral start and LD11/K11 alt excite...

Habitat restraint hydraulics installed.

I just heard that story from John:) Used to have a real good machine shop here locally, then he retired and no one ever picked up the business. haven't had to search for one in a while... Joys of being rural...

No clicks at all with a button press? What relays are powered when you turn on the ignition? What year is this truck?

Ok

I have always found welding easier than precise bends. They tend to be a little tedious, as I have never really been set up to do it(typically have to build the bending jig for the press). For a one-off, i can cut, position and weld much faster..

Exactly!

well it is machining it... any knucklehead can remove metal:), the skill and "machining" comes in building the fixture to hold and move the cutter in the proper relationship to the workpiece. have learned some interesting ways to machine and fit, working with old slow speed diesels. All...

If i could build a reliable fixture for it…. I do have a large delta fixed belt-sander that could work:). Last head resurface i saw the machine was basically a large grinder wheel on rails…

For a one-off i would probably set up guides and draw-file it(dont have a mill or a local machine shop that i trust anymore), but a mill with enough travel could do it. Maybe with a light hone on a glass sheet to finish it off after the mill…

I just run my used motor and hydraulic oil thru it... Oh Wait, thats how I heat my shop:)

Well yes there is something for it to read, with control open the manifold that the sensor is connected to is open to the atmosphere. Thats its first check, can it see atmospheric pressure… If it cannot see that it will not proceed… have you had the PCU sensor out? They installed it pointing...

Yep, classic leak. Give a shot of air to open the valves then it dumps tire air trying to match the system pressure drop caused by the leak. Thats the same way the system deflates. They connect the system to a 6.5PSI relief valve(leak) that drops the truck side of the system down to around...

I think probaby the biggest issue we have is spinning the shafts way into the red zone. Longitudinal vibration is a characteristic of transitioning from one angle to another in a different plane with 4-point u-joints. The steeper the angle the worse it gets, hence the rpm vs angle limit chart...

Cool 2 batts is a good thing as it does not overload the puny 50/50 alts they chose to put in these things... Other than the computer interface on the A1/A1R trucks, the STE they chose for these vehicles does not appear to be al that useful, and most any competent tech will quickly outgrow...