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Well if the trans is doing work, the engine is burning fuel and making heat to accomplish that work(And the trans is probably making some also:) if you are driving around and the thermostat is regulating to 185, then thats where it should be unless you don’t have enough airflow to dissipate the...

The brass poppet is a pressure regulator. that's how the system deflates. it opens the deflate solenoid and sends system air to that 6.5 PSI brass relief valve. in this case it acts like a regulator and drops the system pressure to just above the wheel valve closing pressure to allow maximum...

Yep, either the control valve is not opening cleanly or the vent port from the pcu thru the floor is clogged. If the system cannot vent below ~5 psi, the wheel valves will stay open and empty the tires. the sound under the truck is tire air escaping thru the fromt dump valve on pax side of...

For the coil and wattage. i have seen 2 different solenoid valve types used on our PCU modules. I am not sure wether they use the same coil assemblies... The solenoids portion consists of small pilot valves used to manipulate air to cycle the larger bore valve core/spool valves…

I believe they used TL110 on the A1R to feed raw battery power from the LBCD to CB60 and on to the ECU… I have not seen it used referenced on the earlier A1 truck diagrams, but that doesn’t mean they didn't use it for something… on the A0 it went to the alternator F- terminal and fed a...

Tl110 on what year and model truck chassis? Or to be more specific what year and make wiring harness?

Yes that is strange. the test port/tap is after that second filter right? It should be a straight shot from the second filter output to the front of the head via a hardline, past the injectors in the gallery in the head, to the regulator in the back... Is it possible that the hardline up to...

If I know I am going to deflate, I try and throw a jack-stand under the axle…

Did you ever run the regulator output thru another line into a bucket?

Yep!

I use one of these for my cab suspension fed from the same port after the protection valve as the original that was run over to the manifold valve. Push to inflate the cab suspension, pull to deflate thru that sintered bronze filter. The hydraulic manifold has 2 separate air inputs, one for...

Its possible… you have another regulator on your second engine to play with? A quick test for the return line would be to simply connect a different line to the regulator output and run it into a bucket to take the installed line out of the equation…

80 PSI at idle? Does it go up any when you rev the engine to high idle? Depending on where you look the pressure spec can vary. I have seen A0 specs from 7.5 minimum low idle to 65 psi max high idle. Are you sure the fuel return line or reg at the back is flowing properly? just came across...

As i recommend to all, i would still suggest you measure your primary fuel pressure:) It may be holding prime, but if the main fuel line is leaking its fuel back to the tank it could take a little bit of running to clear that air out of the system. Airleaks show quite clearly on a primary...

yep, no timing, the pump simply provides a regulated feed pressure as commanded by the ECU. The ECU controls injection timing same as on any other EFI vehicle, using that HEUI feed pump pressure to actuate the injectors instead of a fixed cam timing on the MUI engines so you get variable...

Sort of. Remove separator primer all together, Install ford 60 PSI pump and filter module(has a filter and water/sediment drain on the bottom) from a 6.7l power-stroke, at tank to feed up to filter on engine.. connect fuel line from near tank pump up to input of filter on side of engine. Wire...

Well it would be the electric fuel pump and filter assembly used on the ford power stroke pickups…

Yep, that holds the Oring in place….

i wouldn’t “Add” a pump at the tank, I would replace the mechanical lift pump in the governor/HEUI assembly with a 60PSI feed pump and filter at the tank(All electric, no mechanical pump at all) Just so happens Ford makes one of these:) or I would source an electric pump that will keep my...

I would say a standard small gauge Oring would probably work OK…