/r/Diesel

Photograph via snooOG

Welcome to /r/Diesel, reddit's home for everything about compression motors!

Welcome to /r/Diesel, reddit's home for everything about compression motors! All content related to diesels is welcome here.

Please read the subreddit policies before you post and comment.

Edit your own flair above so we know what you drive!


Rules & Guidelines:

  • All posts must be diesel-specific. If you are posting a picture of a vehicle or part of a vehicle that could also be from a gas-powered vehicle, provide context (rule 3) or consider posting to a more appropriate sub.

  • Be respectful to each other and keep it civil.

  • Please include some information (Year, model, modifications, likes, dislikes, etc) on it in the comments of your submitted pictures! It adds context, encourages discussion, and helps us to appreciate your submission more.

  • No image macros or memes, please visit /r/truckmemes.

  • Don't spam the sub with youtube vids/channels or Instagram accounts. No blogspam or bots.

  • No posts or videos promoting any intentional "coal rolling" or similar type behavior. Let's continue to keep our community viewed in a positive and responsible regard.

  • No posts about vehicle purchasing advice, please post those questions to a more appropriate sub such as /r/carbuying /r/carbuyingadvice or one of the diesel truck subs listed below in the sidebar.


In the market for a diesel vehicle? Buying a Used Diesel
Choosing your Diesel Pickup.
Cummins: 5.9 Vs 6.7
Powerstroke: Buying a used powerstroke
Powerstroke Injector Testing
Bulletproofing a 6.0
Engine Diagnosis: Diesel Exhaust Color Diagnosis
Choosing the right oil: Engine oil 101

Read the Truth about Cold Air Intakes (or at least one mans project to get real lab data) before you go spend that $500....


Related subs.
/r/Trucks /r/classictrucks
/r/4x4 /r/Justrolledintotheshop
/r/MechanicAdvice /r/TruckCampers
/r/slammedtrucks /r/dieseltechs

Mod suggested subs:

Brand Diesel Just Trucks
/r/Dodge /r/CTD /r/ram_trucks
/r/Ford /r/FordDiesels /r/FordTrucks
/r/Chevy /r/Duramax /r/ChevyTrucks
/r/Volkswagen /r/tdi
/r/Nissan

Banner image thanks to u/KnightStalker.

/r/Diesel

77,313 Subscribers

1

Favorite year model for the 6.7 PSD?

Ford guys, do you have a more desirable or favorite year for the 6.7 power-stroke diesel? If so, why?

0 Comments
2024/03/12
12:58 UTC

3

My buddies turbo, is it shot?

8 Comments
2024/03/12
11:25 UTC

1

High mileage 2005 24V

Hi folks, been looking at this Ram 05 3500 w/ a 6 speed, it’s in good shape, got just over 410,000 on the clock. I know these motors can last up to 500,000 or even longer if properly maintained, really want the truck, in need of some help. I will be taking it on a test drive to a reputable shop before I even start talking figures, just wanted extra advice. Thank you!

2 Comments
2024/03/12
11:13 UTC

1

Need Help (Urgent) Oil Getting Burnt

Hello, I own a 2003 1.9 TDI with (presumably) 375 xxxkm. I didn't exactly plan on going anywhere further than a 100km from home with it, as it had some issues. But due to an Emergency, I am now 1000km from home and right as the last few days go by while I'm packing and getting read, my engine starts burning quite a lot of oil, mainly on startup. I did some research online, could be a faulty valve seal. But my engine misfires at idle and runs quite roughly now. I am worried it might runaway on my 1000km trip back home when I'm hauling a lot of personal cargo. I might be paranoid. I'm a bit short on money right now. Please, if anybody has any suggestions, I would grateful if you'd let me know.

3 Comments
2024/03/12
10:30 UTC

0

6.0 Powerstroke that bad?

Please someone give me honest feedback. Is the 6.0 powerstroke that bad of a platform? Specifically the 05+ model years. I know maintenance is key with these motors after a bulletproof but I feel like I see many high mileage models nowadays. Buying a 200k mile 6.0 powerstroke am I just asking to be stranded or with buying the right one am I in for a pleasant experience. If it matters I’m specifically looking into the excursions

5 Comments
2024/03/12
10:12 UTC

1

Compound Turbo Advice

I am using a Borg Warner S475 (P/N 171702) for a turbojet engine (like you see on YouTube) and want to experiment with a compound setup and was hoping to get some advice. I use the jet engine for combustion testing / R&D. If there is a more suitable forum to post to please let me know.

I understand that in a conventional system you would size a smaller turbo for the high pressure, and larger for the low pressure for better response etc etc. I only really care about high end performance and boost lag is also a non issue given its a jet engine..

So with this said I have 3 options:

Option 1 High: S475 Low: S475

Option 2 High: Smaller turbo than s475 - any recommendations? Low: S475

Option 3 High: S475 Low: Larger turbo than s475 - any recommendations?

I am hesitant to go with option 2, as I have the current s475 plumbed to the combustion chamber with stainless tube and a smaller turbo will mean that I need to change the tube and won't be able to switch back to the s475 in the future which I will potentially do after testing.

Option 3 means that I'll have a monster turbo which might be $$$.

Option 1 has some potential performance issues but would be the most cost effective. My current turbine housing is a 1.32AR FYI.

I understand this is a very unusual request, so I'm happy to provide any additional info in comments 😊

0 Comments
2024/03/12
10:08 UTC

1

Buying a 2017 F450 6.7l Powerstroke from Herc rental.

Found a 2017 F450 6.7l with only 80k miles. Has anyone bought a truck or anything from Herc? I feel like it might be better because they probably have a scheduled maintenance and probably mechanics on hand.

27.8k with taxes seems like a really good deal.

Still haven’t actually seen the vehicle. Only looked up the VIN but having a hard time getting the specific wheelbase and GVWR

8 Comments
2024/03/12
02:38 UTC

0

Air Leak Sound

Not sure where to post and I am new to this group so I apologize if you get these a lot.

I have a 2020 F250 with the 6.7. Yesterday I started noticing a strange noise while accelerating. It’s sounds almost like the defrost is on high blasting the windshield. I’m sure it is actually coming from under the hood but that’s just what it sounds most similar to. I’m almost positive it is turbo related because coasting is normal and no noise but as soon as I hit the accelerator and the turbo spools, it starts up. Engine is completely stock, no tunes or deletes. I’m assuming bad gasket somewhere or a loose connection but have no idea where to start with diagnosis. It’s under warranty but of course the dealer can’t get me in for service for a month.

So my questions are: has anyone experienced anything similar/be able to provide some guidance, and could I potentially damage anything by continuing to drive it until April? It’s my only vehicle. Also, no codes or check engine light on.

5 Comments
2024/03/12
02:22 UTC

3

is it harmful to cold start a Cummins or a diesel for 45 seconds then shut it off?

I always drive to operating temp but was just changing the fuel filters and wasn’t going anywhere so im just wondering if there’s any harm in doing that.

8 Comments
2024/03/11
23:22 UTC

4

Broken axle shaft

2 weeks ago a shop replaced the rear axle seals on my 2012 f350 dually. When they called and said it was ready I drove the truck home to find oil all over my wheels. I brought it back and they said they forgot to change the hub seal and that’s why it was leaking.

2 days ago I was driving home and heard a grinding noise on the highway, pulled over and smelled something burning and smoke coming from the end of the axle that was leaking when I left the mechanic the first time. Got it towed to another shop and they said that my axle shaft was broken and bone dry and I need a new rear end.

Could this have happened because the first shop forgot to put more oil in the diff anger it leaked out when they forgot to change the hub seal?

5 Comments
2024/03/11
20:22 UTC

0

2016 F250 6.7 (stock)

Often when driving home or whatever after a short drive of just 15 mi or so when I stop and get out I smell a strong burning rubber or brake smell if that makes sense. Anything stand out ? My brakes seem ok and no issues that I can tell. Automatic transmission and 130k miles 4x4

6 Comments
2024/03/11
17:59 UTC

2

What price?

I know how everyone around here feels about the 6.4L powerstroke, but hear me out. I inherited a 2008 F250 Lariat when my dad passed away. Dad only ever used it to haul a 30ft(?) gooseneck RV. I've had it for about 3 years and put maybe 14,000 miles on it. I never haul anything near the weight limit on it and am thinking of selling to get a half ton truck instead, as that would suit my needs a lot better. I am having trouble settling on a reasonable price however, as it seems my truck is pretty unique.

It has 104K miles on the body and transmission. The engine was replaced under warranty by the dealer at 42K miles, so there are 62 K miles on it.

It has been dealer maintained with records for all but the last 3 years.

It has not been deleted or modified from stock in any way, except for a backup camera, touch screen head unit with apple carplay and android auto as well as a gooseneck hitch in the bed.

Everything works, from 4wd to AC. Leather interior in good shape. There are some minor cosmetic issues, the kind of bumps and bruises you would expect on a truck this age.

In the last 5,000 miles it has had tires, new brakes (calipers, rotors and pads), transmission flush and filter change, and tires.

Problems:

The transmission is slow to shift. It has apparently always been this way, according to the service records.

I am wondering what to list it for.

21 Comments
2024/03/11
17:12 UTC

11

6.5L turbo diesel

Not tryna sound dumb but I have a 93 6.5L turbo diesel, it’s my first diesel an I was doing head gaskets and not to my surprise the heads are cracked between the valves, it’s not to bad but I still would rather just get new heads so I don’t have to deal with it later down the road. But Im looking at heads and there’s different angles and stuff but how do I know what exact heads I have so I know which ones I need to get

5 Comments
2024/03/11
15:03 UTC

84

Some big engines run bad when cold. Why?

I have a bunch of diesel trucks. Most of them either run good or run bad. But one dt466 runs like it has 2 bad injectors for 15 minutes. Then it will run like a brand new truck the rest of the day. What is the technical explanation for this?

33 Comments
2024/03/11
02:00 UTC

13

Diesel Community

Is the diesel community now all just a bunch of kids with forged or chrome wheels and rubber band tires doing burnouts everywhere and destroying property in squatted and lifted trucks? I only ask because i love diesel and everyones builds and also using them for what they were made for but it seems every where I go thats the diesel truck scene or truck scene in general

18 Comments
2024/03/11
00:40 UTC

0

6.0 Powerstroke Won’t Start

I don’t understand why this is happening. It’s started about 20 mins before this. But I caused it I must’ve. I was tearing it apart to fix the truck. Then started tye truck with air filter and pipes connect to turbo and coolant unplugged or out. The truck started but I assume that’s very stupid so I stopped it. Then I go in engine bay and ofc the coolant was everywhere. Well I put all the stuff I took out back in and cleaned it up a little. Then went to start it. And that’s what it did, what’s in the video. Windows won’t roll down, ac and heater thing doesn’t turn on neither does radio. It like shut everything off and both battery’s are relatively new and both have excellent charge. So what is causing this?

11 Comments
2024/03/10
23:02 UTC

0

Edge

So we just picked up a 7.3 f350 last night and noticed it has this on it. However there is no monitor or anything inside the truck to hook that to. My question is, can we buy a monitor, or do we need to buy a whole new setup?

2 Comments
2024/03/10
21:52 UTC

2

Europe (Belgium) Diesel car suggestions

Hello I'm looking to buy a 2.0 diesel car awd or just fwd rather have fwd since it's more economical but the more pk from awd is also welcome. I'm especially looking for a 2.0 since it's the perfect balance for me in terms of fuel consumption and performance. My budget is around 20-25 thousand Euro's.

Must haves=

-Reliable automatic transmission . -comfortable seats with good space, drive a e200 from 2018 it was not as spacious as my current superb

  • adaptive cruise control would be nice.

-A very reliable engine

Currently considering these Cars: passat and bmw 518d or 520d. Kia optima 1.7 crdi.

Was also looking for volvo v60 or s90 but I've read that the maintenance is expensive for Volvo's.

Was also looking at mondeos but heard bad things about the transmission.

Skodas became very popular here in Belgium and now they are overpriced imo passats are weirdly cheaper.

Kia optima also has my eye, i really like the car even tho it is a 1.7 it could be just enough but i doubt it I'd like to be able to drive 120 km/h on the highway with 2k rpm

Any other brand/model suggestions are welcome

4 Comments
2024/03/10
19:20 UTC

1

D4A's take on EGRs

0 Comments
2024/03/10
18:02 UTC

15

‘15 6.7 platty

12 Comments
2024/03/10
16:20 UTC

2

2013 ram 3500 kryptonite balljoints

Need new ball joints and saw kryptonites and asked my buddy with a duramax and he says they’re worth the money. But also saw on a review that the 20..-2013 didn’t fit the 2013. I wanna know if anyone if this thread is running them on their dodge especially if it’s a 2013😂. Appreciate it. Or any or good recommendations for balljoints there really isn’t a lot. Or if any of you are running a ball joint delete too I would love to hear feedback on them.

4 Comments
2024/03/10
06:18 UTC

2

Question

When a diesel runs away why is the smoke white, in my mind the smoke would be black because that is normal. As you can tell, when it comes to diesels I’m quite stupid, so I came to the experts of the craft.

6 Comments
2024/03/10
02:43 UTC

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