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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 have noticed that on a truck I test drove for a friend, but it did not have any driving issues. It could also be a factor of hub placement. To confirm the drum is all the way seated, With the drum in place. Spin 2 opposing lug nuts on to hold it firm then measure stud protrusion past the...

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?

Yea I would also look in the operators manual for the vehicle you want to tow. There are probably instructions for that very act(flat tow)…

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...

I would like an A0 set please.

Here is a pic, it is a 5PSI check valve(circled in red) this forces fluid to the hand pump until it builds 5PSI to then allow the fluid to return to the air op pump reservoir. The 1 PSI check allows the hand pump to draw fluid from the AOP reservoir if it pulls into enough vacuum to open that...

Well there are a pair of steering checks with 2 different psi cracking pressures(1 & 3psi I think) that force return fluid to prefer the hand pump reservoir until the pressure builds enough to exceed the crack pressure of the second check. if that check was clogged it could cause excessive...

plastic reservoir? Havnt seen one with a plastic reservoir. The oem lmtv pump Is all metal. Because The return fluid is forced there to keep that reservoir full, before returning to the air op pump, the hand pump reservoir must be sealed and able to withstand a little bit of pressure as the...

Exactly!

Oh, and drop to two batteries:)

Replace it or bypass it…

Yep, you want in the upper 12s on battery voltage to proceed. They also need to deliver a respectable amount of current when loaded to the test voltage(crank amp test). The diodes in the LBCD should only drop the voltage 0.3-0.5V from the battery terminal to the load terminal on the 12 and...

Well if you are only getting 5.1 on the 24v load terminal with the 24v batt terminal connected, the 24v diodes are not passing correctly or you have a bad 24v connection at the LBCD. the batt power runs from batteries to the 24v batt terminal(alternator 24 is also connected here) thru the...

I jink some have done just that, using an oring kit…