Tell me your horror stories (Diesel)

[ib516]

Ok, so browsing through the thread about the 2011 Ford diesel left me in shock. Seems like there were many issues with the early builds of that engine. I know the Cummins and Duramax of that generation had their own issues (mostly emissions related?).

How are the newest gen Ford 6.7L diesels holding up (2015+)?
Are their similar stories for the Cummins and Duramax in the latest gen (2014+)? I know the Cummins has been 370hp/800tq for a while (in the 2500), have they worked out the kinks in that one? Are failures common? I only know one guy with a 2014 Ram 6.7L Cummins SRW 3500. He has had plenty of recalls and was losing coolant a while back, but I think that was the famous water pump issue. He has had no serious issues. His is a 370hp/800tq version with a 68RFE auto. But that's a sample of 1 which is pretty meaningless.

I went with a 6.4L Hemi last time I was shopping as it suited my needs better and frankly, I was scared away from diesels (all of them). At that time, my research told me they weren't worth the gamble. What I mean by that is their superior towing performance wasn't worth it to me when they could cost me tens of thousands to repair if they failed, and they were all (my opinion) having reliability issues in the 2011 to 2013 time period. I thought they were mostly pesky ones to do with emissions, but I'm just not into check engine lights on new trucks.

Are the diesels getting better? Should I put them back on my shopping list for my next new truck?

I'll likely be towing under 10k GVW, and it'll likely be a TT around 30'. I do want to log some miles though, and that will include some long distance touring (cross Country type).

[rhagfo]

BB_TX wrote:

ShinerBock wrote:

BB_TX wrote:
Diesel horror story? Diesel running 60-70 cents more per gallon than gasoline.

It would still have the same cost per mile as a gas engine at 60-70 cents more.

Cost per mile formula

(1 mile / miles per gallon) x fuel cost per gallon = cost per mile

Example:
Ram 6.4 Hemi
(1 mile/12 mpg) x $2.50 per gallon= $.21 cost per mile

Ram 6.7L Cummins
(1 mile/15.5 mpg) x $3.20 per gallon = $.21 cost per mile

DEF adds $.001 per mile

Yeah, but now it is not paying anything toward that $8,000 diesel engine investment.

Around here the difference is only about $0.15 to $0.20 so payback will happen. Besides the $8,000 is an investment in smother towing!

[kw_00]

The bullet proof 6.0 does very well in my experience. I have a few friends that have done the upgrade and achieve longevity. So I consider that expense money well spent if you plan keeping the 6.0. Now if you would ask me about diesels at work then I don’t care for them, and yes we have lots of issues. However to be fair, the 6.7 Ford has done well over the years in service. Not so much with the 6.0 non bulletproof or the 6.4. If I were to own another diesel I would personally go with the Cummins or the duramax. But since I don’t pull more then 10k and not all the time, I can’t justify the ownership of one especially since there’s potential expensive issues with them. I know some don’t believe that last statement but I’m honest enough to say when they break they break and are expensive...... now if we look at the reason why they break sometimes is because of ownership mods or just poor maintenance by the owner. So a lot of times on YouTube and on the net, I watch or read the dramatic horror stories only to realize you always can’t blame the truck but the owner who tunes it way up and role coal.....

[phillyg]

I just put nearly $10k I my 2005,6.0 Ford. After thoroughly researching newer Fords, it seems they all have problems, even to the point that previous naysayers about the "notoriously bad" 6.0, have changed their tune. Apparently, many of the recent 6.7 motors have been repaired on warranty, and if one has to do it on their dime, it's way more expensive to repair than older motors. Once a 6.0 has been "bulletproofed," it supposedly will run another 200,000 miles with no problems. So, I kept mine.

[kw_00]

Ok disclaimer, I don’t own a diesel, so my family experience since diesels are mentioned.
Moms got a 2011 Ram 3500 HD has about 150k I think or more. Had a dpf filter issue a few years ago and was stuck at 15 mph pulling a camper out west. Dealer had to either replace or clean the filter, I don’t recall. Turbo failure last year, and new turbo installed, otherwise a great truck.

[ppine]

2002 7.3 diesel is the best engine I have ever had after 170 k miles.
In Nevada, gas and diesel cost bout the same.
Best mileage is 23.8 mpg with a one ton.

[BB_TX]

ShinerBock wrote:

BB_TX wrote:
Diesel horror story? Diesel running 60-70 cents more per gallon than gasoline.

It would still have the same cost per mile as a gas engine at 60-70 cents more.

Cost per mile formula

(1 mile / miles per gallon) x fuel cost per gallon = cost per mile

Example:
Ram 6.4 Hemi
(1 mile/12 mpg) x $2.50 per gallon= $.21 cost per mile

Ram 6.7L Cummins
(1 mile/15.5 mpg) x $3.20 per gallon = $.21 cost per mile

DEF adds $.001 per mile

Yeah, but now it is not paying anything toward that $8,000 diesel engine investment.

[73guna]

Ive never had any horror stories but if I did Id forget about them once I started pulling that 7% mountain grade and listening to that turbo whistle!
Purr diesel purr!

[Bionic_Man]

I had to replace injectors on my 2003 CTD in 2011, around 115,000 miles on the clock. I think that was around $3k, but I don't really remember what I paid. Also needed ball joints the year before.

This year on my 2012 CTD, I had to do a new fuel pump and new power steering pump. Those two, plus the scheduled EGR valve cleaning was about $3000.

I am still happy with my truck, and if I were in the market today, I would buy another.

And I am 100% convinced that there are many on this forum that will claim 100% reliability on their trucks regardless of if that is actually the case or not. If someone has their brand in their user name, or posts links to their manufacture of choice's marketing material while singing their praises, I would take their word with a grain of salt.

[SidecarFlip]

ford truck guy wrote:
my 2015 6.7 has been a fantastic motor. It is strong, quiet, and pulls like a dream...

But I am sure that Turtle will be along shortly with a bunch of cut and paste links as to why I am wrong...

Turtles are good to eat so long as you dip them in boiling water and peel off the shell before you make turtle soup.

[Lantley]

I think your researching a problem that doesn't exist. While I'm not naive enough to believe diesels are now perfect, there are very few problems at this point.
Reliability across all brands is very good.

[ford_truck_guy]

my 2015 6.7 has been a fantastic motor. It is strong, quiet, and pulls like a dream...

But I am sure that Turtle will be along shortly with a bunch of cut and paste links as to why I am wrong...

[DutchmenSport]

None from me. 2014 Chevy 3500 Dually Duramax 6.6 L Diesel, long bed, crew cab.

Absolutely none.

[IdaD]

I wouldn't get anything with a CP4 pump in it, so that eliminates the Powerstroke and Duramax up until the 2017 (I think) models. I'd not hesitate to get the Cummins or current Duramax. The towing performance blows gas trucks away, and even not towing it's just really nice having all that torque off idle. Only issue with my 2015 is a failed water pump which is a known problem.

[Learjet]

23,500 miles on my first Diesel...nothing but similes and POWER !!

[ShinerBock]

BB_TX wrote:
Diesel horror story? Diesel running 60-70 cents more per gallon than gasoline.

It would still have the same cost per mile as a gas engine at 60-70 cents more.

Cost per mile formula

(1 mile / miles per gallon) x fuel cost per gallon = cost per mile

Example:
Ram 6.4 Hemi
(1 mile/12 mpg) x $2.50 per gallon= $.21 cost per mile

Ram 6.7L Cummins
(1 mile/15.5 mpg) x $3.20 per gallon = $.21 cost per mile

DEF adds $.001 per mile