r/Diesel • • 6h ago

Show off your build Kind of a surreal feeling. It had 292K when I bought it 7 years ago. 2001 7.3L E350

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217 Upvotes

r/Diesel • • 22m ago

One of the loudest two-stroke diesel engines ever built (EMD G26 V16) struggling under a heavy freight load

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• Upvotes

r/Diesel • • 29m ago

Purchase/Selling Advice 2001 7.3 F250

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• Upvotes

4x4 7.3 F250 for sale

Runs great, has cosmetic details and it’s got a crappy paint job but it’s a nice truck. 247k miles. Zero blow by. I have a video starting the truck and doing the blowby test if anybody wants to see it I can DM it I think

$7500


r/Diesel • • 1h ago

No start due to leaking bad injectors? Probably very unsafe leak test.

• Upvotes

Hello from Bishkek, Kyrgyzstan.

This is Cummins QSB 6.7 mounted on a Hyundai 145w excavator.

No start but cranking.

It was starting, but the engine was weak and had spn 656 fmi 5. Fuel was very dirty... Someone dismounted the injectors for a check at a diesel shop. They said that the injectors were okay and they mounted it back with no start now.

https://reddit.com/link/1xgzqno/video/4sp98e8xr1yh1/player

https://reddit.com/link/1xgzqno/video/i6psgb2ws1yh1/player


r/Diesel • • 9h ago

7.3 slight loping on cold start

4 Upvotes

When I warm my 2003 7.3 in the morning after a few minutes of idling it will start a slightly loping. The tachometer gauge doesn’t register the rpm change. As soon as I touch the gas pedal it goes away back to idling normal. Does anyone have any idea what would cause this. Truck is stock with 310,000 miles.


r/Diesel • • 12h ago

Help

7 Upvotes

Inherited a 96 dodge diesel uncle passed away and I only drove it home and drove it a little apart from that he was a trucker and I think he mostly drove on the freeway with it I believe he took good care of it but the dash is completely gone radio is laying on the 4x4 stick i live in California it hits about 120 here in the summer and diesel is so expensive and i have it tucked away in the back so I haven’t driven it in about 6 months or started it it also feels very under powered what should I do?


r/Diesel • • 16h ago

6.7L power stroke humming noise

1 Upvotes

Hello all, I recently had some work done to my 2015 6.7L f350 2wd. I had the turbo replaced, a delete, and a cp4 contamination kit. After all that work, there has been a weird humming noise intermittently. There is also an intermittent CEL for a P0471 code. It seems to drive well though.

It happens for a few seconds almost every time I start the truck. Then it happens very randomly when driving. It is loudest when the exhaust brake is engaged

Does anyone know what this may be? 

here’s a link with videos: https://youtube.com/shorts/1Gfj1fKlAvc?is=uDLWdVtDFGBJiuPH


r/Diesel • • 1d ago

Old d7e hh

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7 Upvotes

r/Diesel • • 1d ago

Help F350 Questions

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5 Upvotes

I’m trying to buy a 2008 F350 6.4L with under 140,000 miles & I notice their’s fluid coming under which I think is under the transmission & i’m asking advice to see if this is a big issue or if anybody can Identify it


r/Diesel • • 20h ago

Need Help With My 5.9 Cummins Smoke Coming From Oil Cap

1 Upvotes

I have a 2003 5.9 Cummins and I’m looking for some advice from people who know these engines.

About a month ago, I noticed a small amount of smoke coming out of the oil cap. Recently, I’ve noticed that it’s gotten more noticeable. I checked the dipstick, and the oil level is above the full mark. The oil looks normal and doesn’t seem to have an unusual smell.

The truck seems to run and drive fine, but I’ve also noticed a slight ticking noise at lower throttle positions. The ticking goes away when I give it more throttle, and there’s no ticking when I’m completely off the pedal.

I’m not very knowledgeable about engines, so I’m trying to figure out what could be causing these issues. Could it be excessive blow by, a crankcase ventilation issue, fuel getting into the oil, or something else?

Should I take it to a diesel shop, or is there anything I should check first?

Any advice or suggestions would be appreciated. Thanks!


r/Diesel • • 1d ago

Question/Need help! Would you still drive a diesel vehicle if it was 25% more expensive per mile/Kilometer?

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14 Upvotes

I feel less people would drive them since they basically lost their cost advantage

What’s the point of owning something that burns 20-30% less fuel if diesel is 45-55% more expensive (in this hypothetical scenario)


r/Diesel • • 1d ago

Airbags for sale

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0 Upvotes

pacbrake hp10005-x-j. for 2001-2010 1ton/3500 chevy/gmc. brand new. I was sent the wrong ones and cannot return them. Asking $600.


r/Diesel • • 2d ago

Is is normal for the bay/heat shield to be this blacked out?

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13 Upvotes

We keep getting the smell through tha AC in the front cabin when the “continue driving clean EF” dash comes on (without visible smoke in the front cabin)


r/Diesel • • 1d ago

7.3l battery upgrade

1 Upvotes

Hey all i have 2000 ford f250 7.3l, i heard that some people were upgrading there battery system by putting bigger batterys in, is there anything i need to do besides just straight putting bigger ones in or is there some kind of kit required, i found some upgraded battery cables online that im thinking about putting in aswell

P.s this is my first diesel and pretty much have no clue whats going on so im just going one step at a time


r/Diesel • • 2d ago

7.3 worth it?

6 Upvotes

I recently found a 2001 7.3 f350 with 3.73 gear ratio and wondering if it’s worth paying 13k for it has 210k on it with no rust. It would be my first diesel truck so what should I look out for?


r/Diesel • • 1d ago

Question/Need help! 6.4 power stroke up pipe to turbo flange gasket won’t quit blowing out

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1 Upvotes

r/Diesel • • 2d ago

Question/Need help! Truck trailer On Fire Greenville October/25/2026🔥

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10 Upvotes

Guys, Watch the video in this and help me understand this fire. I can see maybe a dry differential, or hung brake getting hot enough to start a fire, but then what is burning? Never seen anything like this. What is this fire?


r/Diesel • • 1d ago

What is your favorite diesel engine company or diesel engine?

0 Upvotes

Let me know your opinions down below


r/Diesel • • 1d ago

Question/Need help! Help to ID leak on VP44

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1 Upvotes

r/Diesel • • 2d ago

Want to T&D

3 Upvotes

Anyone from Florida know of any reputable diesel shops in/around the Daytona area that will tune and delete? Preferably ones that you yourself have used or know someone who has had their 6.7 T&D’d there. I can’t imagine shops would openly advertise that they T&D, so figured it’s a word of mouth kinda thing. Also, yes I’m aware there’s plenty of videos online that take you step by step on how to do it, but i’d rather just pay a shop to do it. TIA


r/Diesel • • 2d ago

Cp4 pump to DCR pump

0 Upvotes

Recently had a bad cp4 pump and metal got into the fuel system. My goals for this truck is to have it for a long time and hotshot with it. Its a 2021 6.7 power-stroke. Is it better to get the dcr pump, or to get a cp4 pump and disaster prevntion kit if it means keeping the truck long term. Also, how long do dcr pumps last and if anyone has had any issues with them long term?


r/Diesel • • 2d ago

Hey guys, just need a little bit of help. I have a 2011Kenworth T700 we’re pretty sure it’s sensor related, but I’m just trying to get some input. What do these readings tell you?

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2 Upvotes

r/Diesel • • 2d ago

Deere Warns Equipment Owners About Texas Diesel Waiver | Equipment World

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17 Upvotes

Not familiar with your sub, but in case anyone needs to consider this info on John Deere or maybe other brands, as well.


r/Diesel • • 2d ago

1996 7.3 Powerstroke codes question

0 Upvotes

Im looking at getting into a 96' F350 with a 7.3 in it but have had some issues reading codes off the truck with standard ODB II scaner. May be getting into some ranch work and wanted to get a bit more capable truck then what I have currently. Ive gone down the rabbit hole a little bit and found J1850 codes seem to be a propritary for the in between years when these trucks wernt quite ODB I or ODB II because of loose regulations on heavier trucks. It seems like a solid vehicle, but Im trying to avoid having another truck in the shop for an extended period of time. As of the time Ive driven it a few times and both the 7.3 and E4OD seem fine, only the fuel filter light is on the dash is lit up. Besides FORScan and a bluetooth scanner, do any of yall have knowledge of a typical plug n' play unit that I could pick up that would read error codes? If it could run a buzz test as well that would be great but not a deal breaker. Just wanting to do my do diligence as best I can before pulling the trigger on my first Diesel. Thanks for any help yall can provide!


r/Diesel • • 2d ago

Advice needed: Best ways to reduce turbo lag on a Toyota 2KD-FTV (2.5L)

0 Upvotes

Hi everyone,
I am looking for some suggestions on how to reduce the turbo lag a bit on my Hilux. It takes a moment to spool up, and I would love to improve the low-end response, especially since I occasionally haul cargo loads.
Here is my current setup and engine condition:
Engine: 2.5L 2KD-FTV (Intercooled, Non-VNT wastegated turbo).
Mileage & Maintenance: 290,000 kms. The engine is in overall great condition and maintenance is always done right on time.
Fuel System: Injectors have been checked and are healthy.
Emissions: No EGR and no DPF.
Known Issues: I have noticed a very minor oil leak/weep from the turbo to the inlet manifold, but nothing major.
Tuning Access: I can pull the file directly from the ECU myself.
Since I already have access to the ECU files, would a custom remap be the most effective way to wake up the bottom end?

I want to keep the reliability intact for hauling, so any advice on safe tuning or mechanical tweaks for this specific non-VNT setup would be greatly appreciated!