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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...

Well your hard shifting can be a TPS issue. You can force a TPS recalibration and a shift point relearn by cycling the power a number of times…

I did a youtube vid on how the rear brake components function, under username rronmar

These trucks went to DRMO for a reason…

Are you sure your brakes are all unlocking?

The fan is reverse logic, the thermal sw or the dash sw applies power to energize the fan solenoid and provide air to release the fan clutch(cold engine or fording high water). When you hit 205F, the thermal sw opens the circuit, the solenoid de-energizes venting clutch air and causing it to...

The A0 lamp test is an inside joke:) Welcome to the party pal… it is only wired to light 2 lights in the annunciator panel… The TPS on top of the engine has a large effect on shifting…

Did this truck have a winch originally, or was it a retrofit?

Well that doesn’t look like an A0 schematic. The K37 and the year indicate to me that you have an A0 with a wtec 3 transmission controller, so I don’t think you have a K42… The PTO sw has 2 switched contacts in it. One sends power to-from that relay And the PTO engage solenoid. The other...