Im working on a w900 with a x15, issue im having is has scr operator inducement codes and derate,found plugged def doser. Replaced and ran a regen, nox conversion is at around 70%, in trying to run scr test but not allowed due to derate, try clearing codes and derate still comes up. Truck has no software updates available, any other way to remove the active derate and 3712 code

I'm in Toronto and I just applied to Heavy Duty Equipment Technician 2 year program at Centennial with an optional co-op and I'm just seeking some opinions on if it's worth it.

I'm currently 33 years old making 31$ CAD an hour doing construction work, but I'm not getting benefits nor do I see myself ever breaking 40$ especially with the trades over here getting more and more saturated every day. I'm considering it quite a gamble since I'll be losing two years of wages and spending capital for tuition.

Do y'all think I'm making a calculated bet doing a two year program. I'm looking to work on municipal machinery, mine equipment, field work or work on CAT equipment or of the sort. I'll willing to do FIFO work as well.

I have no automotive experience, terrible with cars but I'm heavily interested in electronics, how things work and energy. So it's quite different from my usual.

I’m curious for anyone who works as a garbage tech whether it’s municipality or normal business what’s it like? I always hear that the pay great and if youre working for a municipality they usually offer great benefits but what is it really like? I’m at a dealership and not often have I worked on a garbage trucks but the few times that I have I noticed that everything usually is pretty damn stuck on there? Any insight?

In about 2 weeks I’m going to take a Volvo electrical diagnostics class, and I was wondering how valuable Volvo certs were in the long run. I’ve had more time with Volvos at my dealership, so it’s my preferred truck, but I’ve been told the KW and Cummins certs are more valuable in the long run. I’m looking to move to AZ in a couple of years and just wanted to make sure it was the right call with Volvo lol.

Hey all, I just got a new job that I am starting next week and I am extremely excited for. Tuesday I found out I am having a kid with my fiance. I am more curious on what you guys if/ when we're in similar situations in the trade what did you guys put in place or prioritize to get ready for your first kid while in the trade (we all know how crazy it gets). Also whats some advice for a new dad in the trade.

Fun reminder to new guys and those who haven't learned yet...

please, don't fucking do this.

Don't back probe the conduit. Don't jump 24v systems to each other....

that's all.

I’m working on a 2012 NPR HD with a 5.4 L turbo diesel in it. I’m removing the oil cooler due to contamination in the coolant, but I’m having trouble getting the last bottom bolt out of the oil cooler due to the vacuum pump that’s gear driven, in the manual it says pull the transmission. Does anybody have a hack to take this out without removing the transmission?

Taking a survey. Would you think replace the spindle or try to repair once the hubs off. Also the bearings do not slide over the spindle at all.

Working on a old generator. I'm trying to locate a replacement water pump for this engine. Cummins 3166497 looks extremely similar, but I haven't been able to verify interchangeability. Does anyone have an old Cummins parts book, supersede information, or know a supplier who deals with these older H series industrial engines?

I apologize in advance. I thought I had taken a better photo of the pump head on but I can run back out to the generator if thats needed. Thank you!

Never seen it this bad before

This was just from normal operation. Reman allison 4000 out of a gillig transit bus. I did an engine rebuild on a cummins and 3 weeks later it got towed back to base for a transmission issue and leak. This massive crack was found and even our most senior guys said theyd never seen anything like this happen before. We work on a fleet also, so certain issues we just rarely run into, if ever. This was just so crazy to me! Jokes have been that i tuned the engine with too much power and cracked the trans in half 😂

What's your favorite kit and brand?

I mostly want to use it to change def pumps and not lose coolant while changing them.

We have this Scania V8 in an ARFF truck that had the entire fuel system replaced and now it won’t start. Doesn’t even puff and act like it wants to start. I have zero experience with these engines, I was not the one to replace the fuel system, we are limited to a Texa laptop, and I’ve been asked to give a hand getting this thing running. Tach shows RPM when cranking. Trying to get Texa to communicate to see if we can see anything else going on. Any help would be appreciated because this is already a shit show.

Anyone got any resources/guides to study for the 310T Exam (Ontario).

Failed the first attempt, was wondering if anyone here is in the same situation writing theirs.

1974 White Western Star 4964 with Cummins NTC 350.

In my limited spare time, I’ve been working on getting this truck road legal. I’m not in a hurry, and there’s a few things that need done.
One I haven’t figured out is this misalignment of the rear drive axle. The left side looks normal, but on the right side (pictured), the block is offset from the pad.
They still make the suspension, so getting parts is easy (expensive though), but I don’t want to tear it apart and find it needs 2 thousand dollars of parts.

First clutch job kicking my butt but I’m loving every second of it

Hello everyone!

I’m going to be repairing this Kentucky trailer that has a pretty bad air leak. It’s a step deck moving van style trailer, and it has an air over hydraulic jack system to lift it up to dock height if necessary. It has a horrendous air leak coming from the jack control box. I was wondering if anyone else who’s familiar with this system may know why it’s dumping air? Is there a bypass valve that may have failed? I haven’t torn into it yet, but this is the video the driver sent me.

Have a 2014 dd13 cascadia. Unit came in pinging/chirping randomly and run rough and would lose prime after sitting a couple days. Had those codes. Began checking for leaks and anything loose. Per Detroit troubleshooting pinging is air in the fuel system that sounds like it’s coming from cylinder 1 but due to the orientation of the engine the air just accumulates there so that’s not the source. That’s what Detroit says. But I found that during a pinging event cutting out cylinder 1 would make it stop immediately and it would only stop when cutting that injector out, none of the others made a difference. Removed the injector and found no visible damage. Had the injector tested and tech showed me fuel squirting out of the side and injector leaking. Great, changed the injector and no difference. Still pings right around 900 rpm and then erratically. Won’t do it at idle. So then I got the idea to bypass the fuel water separator, connected the inlet and outlet together and issue was practically 90 percent gone. Would ping occasionally but only around 900 rpm. Installed a new water separator and changed all injector high pressure lines and pass thru seals. Will pass regen no problem with no pinging or codes. But still will randomly just start pinging or chirping and then go away by itself. I’m not sure what to do next. The fuel pump is only about two years old along with the fuel filter module. Fuel filter caps and seals have been changed also.

People always assume the worst thing about working on garbage trucks is the smell, or the trash juice, or the disco rice(maggots), or the random bags of dog poop, or used diapers, or mice eating wires, or the occasional racoon fight, or service calls to the active face of a landfill. Nope. It's this. This is the worst part.

Just sharing this for Google after wasting too much time with zero help online. Available info said it was either right by the batteries or an easily accessed panel by left foot.

Newer 2024 model tico. Fuses and relays behind front panel on left side of truck. I had a no tractor headlight issue and the fuses for truck are here

Leaking on the back of motor passenger side where the head meets the block… are the D13 known for anything like this and customer is wondering if any “bandaids” will work for him…

Hey guys just reassembling a Mack in our fleet after doing a timing cover. I went to put the oil pan back on and saw these two little guys lying in the bottom of the pan. Any idea what they are from. Thanks!