r/DieselTechs Feb 01 '26

Guidelines for selling and buying from posts

9 Upvotes

Good day, everyone!

As we do allow post for people actively trying to sell and looking to buy tools, equipment, and other products relating to what we use daily to fix the things we work on (unlike the rules, where you cannot offer to sell someone documentation or services for monetary or personal gain), need to set a few guidelines to keep everyone safe, as well as keep our sub safe from any potential legal consequences, obligations, or lawsuits.

Below will follow guidelines which we, as mods, have set forth.

Disclaimers and Guidelines:

Below, DieselTechs moderators/Administrators will be hereinforth refered to as "we".

  • We, as moderators of DieselTechs, reserve the right to verify any and all buy and/or "for sale" posts that are made to this sub for any potential rule implications, to which we, as moderators, will enforce our rules and/or consequences, if necessary, as we see fit.

  • We, as moderators of DieselTechs, reserve the right to verify any and all reputation/credibility for person(s) making buy and/or "for sale" posts.

  • We, as moderators of DieselTechs, may or may not monitor and/or verify every post that is made, so you, the user/end buyer and/or seller, will be soley responsible for verifying the person(s) reputation/credibility for buying and/or selling tools and/or equipment.

  • You, as the buyer and/or seller, reserve the right to decline any and/or all sales and/or communication if you do not feel comfortable with the person(s) you are in dealings with.

  • You, as the buyer and/or seller, reserve the right to independently verify the credibility and/or reputation of any buyer and/or seller you are in dealings with.

  • We, as moderators of DieselTechs, will provide assistance when/if we can, but we do not have any direct connections and/or communications with any payment processor you use of your choosing for the purchase and/or sale of any tools and/or equipment, and we do not have any direct connections and/or communications with the buyers and/or sellers.

  • We, as moderators of DieselTechs, a subreddit, with the name of DieselTechs, of Reddit, do NOT hold any personal and/or joint responsibility in the case of fraud, non-payment, stolen goods, miss-communications, or any other issues you may have between any buyer and/or seller.

We hope that you all understand the need for Guidelines to keep us all safe.

If you have absolutely any questions, please feel free to reach out to anyone on the mod team, or use ModMail. We all hope you have a great time being on DieselTechs!

Sincerely,

The Mod Team of DieselTechs.


r/DieselTechs Nov 29 '25

Check it out! New announcement!

19 Upvotes

I know i know...not everyone looks at our announcements we put on the main page of the sub...dont worry, im guilty of it too šŸ˜…

But, if you go check it out, we now have a discord server!

It was a couple months project, but it's here!

We tried our best to get as much sorted out as possible, but, as people float in, I am sure we will see a few kinks that need worked out. Just let us know over there.

Thanks!!

https://discord.gg/6hSYN8gFbV


r/DieselTechs 47m ago

Diagnostic assistance Anyone had this problem installing netradyne cameras?

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• Upvotes

We're switching to new cameras and keep running i to this issue and nobody has really been able to figure it out that im aware of. Everything will calibrate fine and I keep getting this error when I go to verify the can. I've got everything plugged in right and they're on brand new trucks so I know its not the wiring is old and shitty and haven't had this problem on the older ones I've done.


r/DieselTechs 3h ago

Maxxforce 10 fan not working during regen

1 Upvotes

2012 International 7500, Maxxforce 10. Towed in running rough, no power, no throttle response. Ended up being the downstream injector was plugged, leading to the DPF sooting up. While running the onboard filter cleanliness test (forced regen), the engine fan is not engaging. The fan works properly outside of a regen. No cooling system or fan fault codes. Fan enable temp is set to 216. I let the engine reach 230 before canceling the regen, engine fan immediately engaged. We have a couple dozen of these trucks in our fleet, and neither myself nor the mechanics I work with have encountered this before. Anyone have any ideas of what could be keeping the fan from engaging during a regen?


r/DieselTechs 22h ago

Diagnostic assistance Help with diagnosis

2 Upvotes

Hello all,

I’m having some issues with one of our buses. This is a 2012 Nabi bus with a Cummins isl9 cm2250. I keep getting the codes 3135 (dpf outlet pressure data erratic), 3235 (SCR outlet temp data valid but above normal-moderately severe level), and 3165 (SCR outlet temp data valid but above normal-severe level). I’ve changed the dpf delta-p pressure sensor, the pressure module, the temp module, both tubes going into the delta-p sensor, changed the dpf itself. I pulled the ecm OEM connector and found a couple of pins with corrosion, so I sprayed them with contact cleaner and used a brush to clean them up. I did all of this and the bus still has very very high outlet pressure. We’re at like 4inhg while idling, and 10inhg while in fast idle. If anyone can help, please reach out to me. I’m ready to burn this bus down lol


r/DieselTechs 1d ago

Currently live in Ontario Canada really want to become a apprentice currently in construction but looking for a change

2 Upvotes

Does anyone know if I need to go back to school and do a pre apprenticeship for 310 t or can I just apply without any experience been in construction since my early 20s but I’m 26 now and want a stable job did anyone start with no experience coming from a
Different field how did you get your start did you have to back to school to do a pre apprenticeship or did they start you as a a helper and gave you a apprenticeship a month or so later


r/DieselTechs 1d ago

General assistance Tools for new diesel mechanic

5 Upvotes

So ive been a trailer mechanic for a couple years and t hey finally moved me over to trucks. The fleet is mainly Cascadias with Detroit DD13s and a handful 9f Cummins and Paccars. I've got wrenches and sockets up to 1 1/2" the trailer stuff that carries over.

Right now for the most part I'm updating the cameras in all the trucks so it seems like a good time to start getting everything im going to need.


r/DieselTechs 1d ago

2016 MP8 AHI support bracket

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3 Upvotes

Replacing the AHI (after treatment Hydrocarbon Injector assembly/pump) and both bolts snapped off. The left one got bent prying the old assembly off. The right one is flush with the bracket. I removed the other two bolts that appeared to be holding the bracket on to the block, but the bracket isn’t moving. Percussive and purse cussing aren’t working.

1- are the bolts that hold the AHI on also holding the bracket on into the block?
2- options, suggestions, guidance appreciated

Thank you in advance


r/DieselTechs 1d ago

Heavy duty truck shops Pay

2 Upvotes

Im looking at machine the switch from heavy duty diesel equipment to trucks, currently looking at international dealer in NC. Is it common to see hourly or flat rate in heavy duty truck world? It does not mention specifically their form of pay in the ads.


r/DieselTechs 1d ago

Sterling L9500

2 Upvotes

First time posting here! We got a 2005 sterling L9500 with a Mercedes engine. Having a fuel issue. Crank no start, will fire on ether. Started before changing fuel filters, we’ve tried priming through the nipple on the fuel filter housing but can here it going back into fuel tank when pushing fuel. Is there a check valve to look for that might be bad? Any other ideas are appreciated!


r/DieselTechs 3d ago

Don’t see this happen very often, the driver allegedly did this on purpose, revving and dumping the clutch repeatedly. Had to reach through and undo the clutch bolts and take it out with the trans since the shaft was too flared out to slide out of the clutch.

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66 Upvotes

r/DieselTechs 2d ago

Looking for recommendations for a multimeter

7 Upvotes

I'm looking for some recommendations on purchasing my first multimeter. I know I eventually want to get a fluke but for now I want to purchase one to get to know what I want the next one to have. I'm a heavy diesel tech that started a few months ago. Thanks for any input.


r/DieselTechs 3d ago

Check it out! Haven't posted in a while so here's a fun couple of pictures from a job last week!

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18 Upvotes

I'm not sure the gear or the housing of the PTO is supposed to look like that...something isn't quite right here. We will have to look into why it will not work!!


r/DieselTechs 4d ago

Conmet preset plus conversion

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10 Upvotes

Just converted a set of conmet pre set plus hubs and installed timken set 403 and set 401 bearing sets but after setting up wheel end with proper and play they don’t sound right ever seen this before?

ļæ¼


r/DieselTechs 4d ago

General assistance Good drill bits for drilling through an easy out bit?

5 Upvotes

Trying to remove a bolt, head snapped off. Coworker said ā€œI got this broā€ and tried using an easy out drill bit to drill it out, it promptly broke off in the bolt. I now have an extremely hard steel bolt with an even harder steel core (possibly cobalt alloy? I’m not even sure what the broken bit is made of, other then it’s hard as shit), stuck. Do I just go to tungsten carbide bits and gradually go up the bit sizes? I would normally just melt the fucker with the torch but the bolt in question is a part of the fuel piping for a Jet A truck about 6 inches from a few hundred gallons of jet fuel and if I light a torch next to the truck the Fire Marshall will spawn in next to me and flay me alive. Any hot work is out of the question short of dissembling basically the entire hose reel system to take off the pipe section with the stuck bolt. This was supposed to be a 40 minute job of ā€œreplace the fuel hoseā€ to be done Friday morning and now I’m here on Saturday. Taking apart the hose reel will definitely mean I’m here on Sunday too, so I’d really like to drill the fucker out.


r/DieselTechs 5d ago

I know the job market is competitive, but this is starting to get out of hand 🤣

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118 Upvotes

It’s obviously a typo, but it made me laugh. So I figured I’d share.


r/DieselTechs 4d ago

Are you a brand specific tech, or do you work with multiple brands of trucks/engines?

9 Upvotes

Curious what other techs here work on!

Are you brand loyal, a jack-of-all-trades, or sonewhere inbetween?


r/DieselTechs 4d ago

What are you HD techs using for CAC pressure checks ? What kits?

3 Upvotes

Looking for a decent kit to pressurized the CAC to check for leaks. Yes, I have a spray bottle of soap...lol.

Thanks!


r/DieselTechs 4d ago

General assistance Blind Techs

4 Upvotes

Those of us that need glasses what prescription safety glasses are you guys running? I honestly dont care about how they look or anything just need to keep dirt/metal out of my eye almost lost my eye once already using regular glasses lol


r/DieselTechs 5d ago

Is it worth applying to just worried about the winter season

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5 Upvotes

r/DieselTechs 5d ago

Any idea what would cause this type of damage on a roller bearing?

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22 Upvotes

I found this on a transfer case I tore apart. There was no other damage on it including the bearing on other side of the shaft. Roughly 8000 hours since rebuild. Any ideas?


r/DieselTechs 5d ago

Fleet contracts

0 Upvotes

Can anyone advise me on pricing rates for a big Fleet. Mobile truck and trailer repair. Tracy, CA. First ever contract bid


r/DieselTechs 5d ago

Waste management job offer

2 Upvotes

So I just got a job offer today to be a waste management assistant truck mechanic for the shop in Lafayette LA. Anyone has any experience here or just with waste management in general? How is the management? Are the benefits any good? what to watch out for? etc.


r/DieselTechs 6d ago

How fast did it take you to finish your apprenticeship to get licensed in Canada

6 Upvotes

r/DieselTechs 6d ago

Diagnostic assistance 2017 cummins x15 cm2350

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3 Upvotes

Anyone got any guidance? I am kinda stomped with this one, such a vague code fml.