r/DieselTechs

I hope someone knows more about the EMUX system.

On the older system VMUX I used to get the high beam signal from the VECU connector A3 for a high beam trigger for driving lights.

Would populate the connector and run it to an arming switch then out to the relays.

Already looked through the SM034-018 EMUX Service Manual on ServiceNet.

TCS wasn't able to help either.

I'm trying to prevent cutting into the headlight harness if possible to prevent corrosion issues down the road.

But cutting into it is the current plan to complete this.

Thanks,

Hey all,

I was wondering if anyone here has taken an L9 that doesn’t have engine brakes and has added them to it?

I have a customer wanting it done and my boss said he looked into it in the past and it couldn’t be done. The thing is sometimes he doesn’t have the time to try and dig deeper into these sorts of things and it doesn’t seem impossible to me. All I can think of is add the Jake heads and associated parts, wires the solenoids to the ECM, install the switch in the dash, and change the ECM calibration.

Appreciate any help!

Edit: So I answered my own question and figured I’d share here in case anyone else ever has this same question.

Cummins has an engine brake upfit kit.

Reference TSB210223 in Quickserve and it gives you parts to order along with instructions to follow.

I work at waste connections making 47.50 an hour afternoon shift 4 days a week made about 110k last year with ot

Peterbilt 389 with an ISX15. The coolant gauge reads normal for ten minutes or so, jumps hot for maybe half a minute, then drops back. No coolant loss, smell, derate, or overheat shutdown. I cleaned the block ground and checked the sensor connector for corrosion. Wiggling the harness did not change it. I do not have the scan-tool temperature in front of me yet, so right now I only know what the dash is doing. Would you compare the ECM coolant value to the dash first, or go straight to checking the 5V reference, signal, and ground at the sensor?

I’m not even in the field yet, I start classes in fall.
A few years ago I woke up with some pretty bad back pain and couldn’t hardly bend over to tie my boots, got checked out. The doctor couldn’t confirm but said he thinks I might have herniated a disc.

Now a few years later I’m still dealing with back pain. Nothing awful, it doesn’t affect my day to day life but I definitely notice it. I go to the gym and do heavy squats and deadlifts, I’ve also competed in powerlifting since my injury and it hasn’t seemed to have made it worse.

Is there anybody out there dealing with similar pain? How do you manage? Honestly just worried I might have to find a new field 10 years from now.

I’m starting out as a diesel mechanic and I was given a required tool list, but I’m a little confused about how they’re listing the sizes.

The list says:

• Combination End Wrench Set — (1/4. . 1-1/4)
• Combination End Wrench Set — (1/4. . 3/4)
• Flare Nut/Line Wrench Set — (3/8. . 5/8.)
• 1/4" Drive Ratchet Set — (1/4. . 1/2. )

When they say something like (1/4. . 1-1/4) are they saying I need every standard wrench size in between those two sizes, or just the specific sizes listed?

Same question for the flare nut/line wrench set — would I need all the common sizes between 3/8" and 5/8"?

Also, for the 1/4" Drive Ratchet Set I’m assuming the 1/4" refers to the ratchet drive size and the 1/4"–1/2" range refers to the socket sizes. Is that correct?

If so, should I buy shallow sockets, deep sockets, or both for a starting diesel mechanic set?

I’m trying to make sure I buy exactly what they’re asking for without spending money on the wrong tools. Appreciate any help.

Currently working on a international Lt year 2020. Brake lights come on intermittently when going down the road. I replaced 2 brake sensors (one behind the knee panel and one behind cluster). Also i changed the treadle valve and no luck. Any suggestions what could cause this? Thanks in advance.

Long story short. I started working for a new company due to relocating for the wife’s job.

I’ll start off by saying that I’m not a new or green apprentice. Been at it for 15 years. Have always worked with some degree of grouchy people.

But there is this one guy that’s been here for 10 years and everyone knows he’s a “grumpy” all the time.

So I shrugged it off a few times. But now it’s pissing me off.

The day usually starts with trying to have a convo that turns negative and how the world sucks and he’s the hardest and smartest mechanic ever. Carry on with my day all good. Then couple hours in he will have a snap show on someone or myself when ever someone disagrees or wants to do something different or explains that they can’t work past 7pm tonight due to family obligations. We work till 5 normally and stay late to help the odd time if needed

Then the day proceeds and he comes up and usually apologizes and says no hurt feelings. Then it all repeats again.

I actually have more years of experience than him and I have politely mentioned to him I don’t take the attitude and bullshit any more. I’m here to work and not play the drama games

I’ve never been the type of person to run to management and tattletale.

Usually what happens in the field stays in the field type of guy.

So what would other mechanics do in this situation

I’ll add in that he isn’t technically a manager but he assigns tasks and delegates the work. But not a manager on paper

How are you guys doing these wheel seals on disc brakes. It’s too damn heavy for me. My back hurts after doing 2 today. Help me out lmao.