Search results

Interesting - I wonder if the ABS ECU was the culprit for burning up the J1939 resistors.

See the comment above from @hike You will have plenty of low range. More than enough to overcome your ability to provide traction. You are seeing a drawback where none exists. You *want* something that's not being taken away. It's only your perception and understanding that's limited here. The...

Seriously - sell them after you pull the lockers out and do ECO hubs. Keep the 3.90's. The 3.07's aren't as good with the ECO hubs. So many benefits. Biggest is really saving the engine and transmission - that C6 thrust bearing - engine longevity from not screaming at redline. Literally no on...

You ran it over the scales? That seems excessively heavy for a 1078. My truck is 21,950 with me and the dog and some gear in the habitat. The M1079 box weighs 3,360 lbs although I did pull about 700 lbs of steel plating out of mine prior to going over the scales.

Yeah looking at old posts it does seem to be a 9/12 brake can. Later trucks like mine are apparently the 12/16 brake cans.

Interesting! The TM says it's an X24-3276J-10 which I assume would be a type 10.

A1 trucks are also ECU controlled. It's only the A0 that has a manual Ether button.

Wrong part for your 2003 anyway.

You can also just T off the port and leave the CTIS intact. Any reason you don't want to have it operational? You already have it and it's a really simple system that works well if you reasonably maintain it.

Correct. Looks like if you connect them it will illuminate the stop lights as if you were activating the Johnny brake for the M1088 trailer. If you ground them you will blow the circuit breaker. So yes heat shrink them individually and label them appropriately. Or follow them back into the...

I would wager it started with a C6 thrust bearing failure. Agree with Ron - drives in mode means C6 must be engaged. And if the TCM isn't reporting a problem then it's unable to detect the issue which means either an electrical failure causing C6 to remain engaged (seems unlikely) or C6 is...

Correct

Yep. And some will probably work because those guys throw parts at problems constantly. Still definitely a gamble.

Need the numbers printed on the wires to make a determination.

Need the wire numbers to trace them on the schematic. I haven't seen the TL numbers on there. Do you have the CTIS off switch that's part of the arctic kit? The tag seems to suggest it's related. Don't believe I have a switch in that location on my 1079.

Terminal Lugs 501 and 502 (if equipped) are connected to a pressure switch that's directly below the PCU on the passenger side:

Hope it was printed with something like ABS - the heater box gets plenty hot enough to melt many print filaments on it's own. Even at that - ABS starts to get soft around 210 F. A dark colored dash component in direct sunlight can easily approach that. I've had PLA+ printed parts get warped just...

Another member here reported a similar issue with his truck - burnt up resistors on the J1939..... I can't give an explanation of why. He replaced it and his data bus worked fine. There is only two wiring diagrams for the flange mount unit in the troubleshooting guide and both use the same pins...

Wasn't experiencing problems. This was an effort to avoid future problems. Rubber deteriorates, can't see the condition without opening them up and being 15 years old...... the price doesn't justify inspection even. Mileage is meaningless on a truck that sat in the desert all it's life so they...

Yeah I'll likely do the parking brake diaphragms at some point also. If you have a failure on one of those it's easy enough to cage it, plug the air line and drive on with three. Losing the service brake diaphragms however can be a real significant problem for "getting home" - uneven brake...