2013 Ram 6.7 With Some Motor Issues

Mine is a manual trans and I'm generally doing about 1000~1200 RPM's at 30. Why would you want it to do more? And what is poor mileage?
Not much you can do. Excessive clatter can mean injection pressures are out of wack and without proper equipment, it's impossible to check. I would just make sure they actually have a diesel tech or are farming it out to one. It's good to get it checked out though before damage occurs.
Don't know what to say about your ham. ;)

My advice is go to a Ram dealer for your repair.

Run TH to keep rpm’s up.

ScottG wrote:
Mine is a manual trans and I'm generally doing about 1000~1200 RPM's at 30. Why would you want it to do more? And what is poor mileage?
Not much you can do. Excessive clatter can mean injection pressures are out of wack and without proper equipment, it's impossible to check. I would just make sure they actually have a diesel tech or are farming it out to one. It's good to get it checked out though before damage occurs.
Don't know what to say about your ham. ;)

Just sounds like engine lugs at that low rpm. I do run in TH when it turns on but that is the real issue why going into dealer. It has plenty of power, and pulling up grade at 1800 and with the load it sounded like something was going to fall off. I was thinking valve adjustment. Mileage has gone down towing or not. Just didn't want dealer to chase me down a rabbit hole

SweetLou wrote:

ScottG wrote:
Mine is a manual trans and I'm generally doing about 1000~1200 RPM's at 30. Why would you want it to do more? And what is poor mileage?
Not much you can do. Excessive clatter can mean injection pressures are out of wack and without proper equipment, it's impossible to check. I would just make sure they actually have a diesel tech or are farming it out to one. It's good to get it checked out though before damage occurs.
Don't know what to say about your ham. ;)

Just sounds like engine lugs at that low rpm. I do run in TH when it turns on but that is the real issue why going into dealer. It has plenty of power, and pulling up grade at 1800 and with the load it sounded like something was going to fall off. I was thinking valve adjustment. Mileage has gone down towing or not. Just didn't want dealer to chase me down a rabbit hole

Unless it's got 150K or more miles, probably not valve adj and they don't make that much noise when they need it anyway from what I've seen with the few of them I've adjusted. There are a number of items in the fuel system that can make it sound like an old clattering diesel and some of them can cause excessive pressures or damaging spikes. I think getting it to a good mechanic quickly is smart. The hard part is finding one.

SweetLou wrote:

ScottG wrote:
Mine is a manual trans and I'm generally doing about 1000~1200 RPM's at 30. Why would you want it to do more? And what is poor mileage?
Not much you can do. Excessive clatter can mean injection pressures are out of wack and without proper equipment, it's impossible to check. I would just make sure they actually have a diesel tech or are farming it out to one. It's good to get it checked out though before damage occurs.
Don't know what to say about your ham. ;)

Just sounds like engine lugs at that low rpm. I do run in TH when it turns on but that is the real issue why going into dealer. It has plenty of power, and pulling up grade at 1800 and with the load it sounded like something was going to fall off. I was thinking valve adjustment. Mileage has gone down towing or not. Just didn't want dealer to chase me down a rabbit hole

Are you burning a lot of DEF? I have a friend that his is and the power is not what it used to be on his 13. No codes and a fresh valve adjustment. Sounds like his could be a DEF nozzle that is leaking and is plugging up his down stream emissions.

Shiner, how about you chime in on this one.

FishOnOne wrote:
My advice is go to a Ram dealer for your repair.

Calling Devo the Dog!

SweetLou wrote:
I hate the dealer but that is where I am headed for an electrical issue that makes my volume and switches not function. But, my concern is that I am getting poor mileage, I hear a lot of clattering, and just going down the road at 30 mph the truck is doing 1000 rpm so I switch it manual to get them up. Anything come to mind that I can do for a diagnostic so they don't go fishing and entering deeper into my wallet?

I'm gonna try to separate your issues and assist you in being more specific.
1. Electrical issue with unknown switches and volume control. BCM possibly or out of date head unit software if it's the touch screen (but think that was 2014 first year). Dpends what switches...there's alot of them (switches), no magic answer like just replace the fetzer valve and you're good to go...
2. Fuel mileage. Always a tough one....recent sharp drop in mileage. Any running quality issues? Re-genning more than it should? Again cant expect a specific answer from an overtly general question.
3. Trans appears to upshift quicker or higher than you prefer. Again, new behavior? Any other trans issues? This just start or been going on forever, figuratively or literally?
What I know about the 68rfe is it's a relatively durable trans with perhaps the worst shifting characteristics, in general, short of it's older brothers the 47/48re. On a scale of comparison. The old Ford Torqshift 5 speed and original 5speed Alli 1000s blow away even the current 68rfe behavior wise and everything else newer form all the big 3 are better as well. In short the 68rfe's time had come before it was even dropped into the first pickup in 2007. Same goes for the 66 65 and 64 rfe and the 545.
That said it does shift extremely early in most every gear under light loads and the TC locks up at the most inopportune time at light loads and lower rpms making it a double whammy of ill shifting mush.
If you don't like yours, try mine with 3.42s and 37s!! Yours will feel like an indy car! LOL
All that said, unless it's a new condition, I'll go, 90% chance it's normal undesirable behavior of the 68rfe.

The clattering could be a number of things. It could be as small as having lower quality fuel to your HPFP being out of wack as ScottG stated.

Cetane ratings in fuel do affect the sound of the engine. You could throw a bottle of cetane booster or another additive with cetane booster in it to see if the noise goes away. If it does then it is likely the fuel and I would try getting it somewhere else next time. If not, then you know you have another issue.