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r/Cummins

▲ 6 r/Cummins

Going on a diet

I got the dreaded message on my 2016 3500 with 88,000 miles last week and I’m looking around for a good diet program. My local guy wants to use Proven Diesel and an Ez Lynk but I’m not sold on ez lynk for the fact that it’s cloud based, and I’ve also never seen anyone mention anything about Proven Diesel.

I was personally looking at going through CA performance with either the EFI Live or the MM3

What’s everyone’s thoughts on ez lynk vs other tuners and thoughts on proven diesel?

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u/Bearjew__16 — 12 hours ago
▲ 15 r/Cummins

Thoughts? This seems expensive.

I’m coming from Ford-land (sorry!) and have been out of the diesel game for a few years. I have no clue what I’m looking at here from a value perspective but this seems on the spendier side.

2006 3500

Non-Franchised dealer price: $28.5K located in NorCal

150K miles

Manual transmission

5.9L Cummins

Six speed manual with manual transfer case

Cloth khaki interior

76” bed

Pictures make everything look nice and pretty. I’ve purchased an absolutely cherry 7.3L power stroke from a similar style dealer. That one and this one seem to specialize in more sought after trucks like these. Very much a “I know what I’ve got” kinda mentality with places like this. I haven’t reached out to this dealership, however, so no clue.

In my mind-this thing is with $22K tops but I’m more than willing to be wrong. Please educate me if so. Thoughts?

u/hartzonfire — 21 hours ago
▲ 2 r/Cummins

Optimal tire pressures for a daily that sees very little to no towing right now

2004.5 4x4 6 speed

265 70 r17 tires. Brand new Toyo M55

what psi are you running your trucks at that aren’t towing heavy on a regular basis

Love these tires but the people who installed them threw them all at around 63-65 psi and I almost adjusted my steering gearbox because of how finnicky the steering is at highway speeds it is just too much.

i also have an upgraded power steering pump so i assume the front tire pressure being 5 over factory recommended, in combination with new tires and higher pressure pump make me to want to drop the psi a little and THEN if needed back off the adjuster like 1/16-1/8“ on the steering gear to add a fractional amount of play if for some reason dropping psi to like 57-60 doesn’t help. I know most recommend 60 for Front due to engine weight / balance.

Also the rear tire pressures at 65ish when I am not towing at all is also probably a little on the higher side and maybe what’s causing some of the rear end hopping / skipping through corners. What do you suggest for the rears?

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u/JMAnonymous59 — 22 hours ago
▲ 57 r/Cummins

1998 Cummins 12v 4x4 5 speed

Looking to pick this up for 13k. Clean title, 5 speed, 4x4. 260k miles. Interior is a bit rough but everything it done: KDP, 5th gear nut retaining, PDD HX35 64/60, PDD Powerjet injectors Stage 2, PDD 3k/4k valve springs. Transfer case and transmission rebuilt in the last two years. Paints pretty faded on the hood and interior is a little rough. ST trim. Should be picking it up next week. Did I do okay?

u/namshufighter — 2 days ago
▲ 40 r/Cummins

Limited 2018 33k miles how much she worth ?

Clean title
Looks brand new
2nd owner
been in FL/GA her whole life

u/Phillydrip — 2 days ago
▲ 1 r/Cummins

6.7 Cummins “Bullet proof”

I have a 2021 Cummins, I hear a lot about problems with the motor due to DPF, is there a way to “bullet proof” ?? 48k miles.
Thx

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u/Cathdad_usa777 — 2 days ago
▲ 14 r/Cummins+1 crossposts

What's everyone running under the hood these days?

I've been curious to see what everyone's engine bay looks like.

What are your favorite under-the-hood upgrades so far?

Intake, intercooler, turbo, valve cover, piping, catch can... anything goes.

u/Far_News_0808 — 4 days ago
▲ 4 r/Cummins

Is she done for? 23 Cummins

Checked with borescope after hearing rattle noise on the right side internal too the engine. 30,000 miles on the odometer.

u/No_Weird5221 — 3 days ago
▲ 16 r/Cummins

Delete or fix?

Two weeks into owning this 23 Laramie, 120k miles, thrown a code P1451 & P2459. There’s a TSB that says to replace the DPF. Warranty won’t cover the DPF because it’s a consumable. Dealer won’t do anything to help. So void warranty and delete or pay for a new DPF out of pocket and keep the warranty?

u/Warm_Drawer_9206 — 4 days ago
▲ 17 r/Cummins

Good buy or goodbye?

Found this truck on Craigslist, seller says he bought it and it sat for 5 years because he retired from flipping houses and he bought it from a guy that used it to tow his boat. Truly about all the information he gave me.

I went and checked out the truck the exhaust was rusted and just about every interior bolt had surface rust on it, lightly but it did have some. It seems to have an aftermarket sunroof as well.

For 28k is this worth it or should I pass? Mechanics all seemed okay and it has a clean carfax.

EDIT: Yeah we have decided it’s a “Good bye 👋” so we are looking for a cleaner rig.

u/Master_Home8378 — 4 days ago
▲ 14 r/Cummins

2004.5 ram 3500 laramie

So something went BANG while driving through an intersection. It sort of grinds, if you want to call it that it's more of a hiss like "zzzzzzzzz" in D and R, but it just rolls when in P. It's something transmission related, like the output shaft or the t-case input shaft, but I'm not convinced it's the transmission proper. 4wd didn't get me any movement when I was in the intersection either.

If it's the output shaft, the whole trans gets rebuilt anyways. If it's the t-case, I was told to just buy a new one. I have to rip it apart when I get some time and find the issue.

She's given me 500'000 good kilometers of life, I can't say anything bad about her. She got rear ended years ago and I had to park her for a while to rebuild the rear end because insurance wouldn't. I put a lot of money into getting her back on her feet, full rear end rebuild, half the front end, new brake lines all around, fuel lines, TIPM, ECM. A whole lot of lovin', and she gave me loving back for years and years, but I just don't know if she's got any life left in her. The engine has never been rebuilt, nor the rest of the powertrain. If I fix her this time, how long until the next part blows?

What do you think? Is she worth the 10s of thousands in repairs I've given her so far, and more to come, or is she an ornament? Does a new 3500 with a better tow rating trump keeping this old girl alive?

u/howismyspelling — 3 days ago
▲ 33 r/Cummins

What is a reasonable price for this truck?

Located in Arizona, not a 53 block, automatic 4x4. Does not have a FASS/lift pump on it. Some fading of paint on fenders and tailgate, dash is uncracked. Asking 19,500 167k miles on it. Clean title.

u/namshufighter — 4 days ago
▲ 6 r/Cummins

2022 Ram 2500 Megacab… how often should I do oil changes?

Moved to CA a few years back and finally decided to sell my beloved 2008 3500 I’ve had since 2009. It was deleted and the quad cab for my 3 boys and wife was getting tight.

Found a 2022 Ram Megacab bighorn with 12K miles for 51K. Black interior, 8.4 uconnect and it’s a huge upgrade over my 08 Laramie quad cab!

I use it to tow a 5th wheel like 2x a year, ski trips and a summer trip. So it doesn’t get tons of miles. Maybe 5-7K/year.

How often should I change the oil? Did it once this year. I know some guys go 10-15K, I did on my old truck but it didn’t have these hydraulic lifters the internet tells me I should fear!

Changed the fuel filters/oil at 17.5K today. Pretty easy aside from the damn oil filter. I was hoping they would move that somewhere that makes sense but it’s still kinda dumb. Channel locks removed it easy enough but still managed to spill some trying to get it out the little hole from the passenger side wheel well.

Wild they want like 350-500 dollars to change the oil and fuel filters on these hogs. It’s not that hard.

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u/Tossaway198832 — 3 days ago
▲ 2 r/Cummins

Which front end to choose?

First time owner here. Bought 2007 6.7L g56 2500.

Missed quite a few things when doing my due diligence so you will see me often here with questions.

The tie rod ends and sway bar links are dead. Some other steering components are too. I only dealt with light car suspension in the past, so this front end looks a bit more complex, but also more accessible.

Which components should I get? Mevotech Supreme seem to be doing good job for me in the past, but chatgpt suggests I should update to XRF and change the geometry if the front end. In the questions like this I would trust more to the human with experience than ai.

I am not planning to do any off-roading, occasional light off-roading when hunting, fishing, light towing.

I'm not even sure I will keep the truck long-term. Only want to do the upgrades that improve reliability and hopefully make the truck easier to sell in the future, or at least not reduce its attractiveness.

What woukd you recommend?

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u/VladyUA — 3 days ago
▲ 13 r/Cummins

What is this truck worth roughly?

Looking to buy this 2nd gen. I own a 2016 6.7 so I’m not new to diesels but I am not familiar with the older diesels.

1998.5
5.9l Cummins
4x4
Nv4500
209k miles
2 owners(been in the same family it’s whole life)
Texas truck so no rust really
Interior is 8/10 in my opinion
Rebuild trans in 2024
Fass 100gph
Southbend single disc clutch

Cons
Bad crank position sensor
Leaking axle seal (front driver side)
Brakes are shot in the front
Needs some front end attention(ball joints and bushings)
Originally had steps/flares that were one piece and there are a lot of holes in the bed and rocker panels.
Extended cab windows are siliconed shut

I looked at the truck yesterday, and it’s not as nice as I thought I looked in the pictures. For a 28 year old truck, I know it will not be perfect and the things that are wrong I am capable of fixing.

My question is, what is this truck valued at fairly?
What would you pay?

u/QX8C — 4 days ago