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Maybe it was an experiment to see if it would help without admitting there was a problem with their oil recommendations or a defect. I don’t know how litigation antsy they are in SA.

From a credible source, the ticking noise was eliminated by removing the EGR and cooler. And other associated plumbing.

I’m sure Shell is going to say known mfg defect. Pound sand.

Back to the 6400D. Wife’s nephew has a pre DEF 70 hp JD tractor that he uses on job sites and to move hay for his cows. He is a retired home building contractor and he does dirt work for his sons that took over the business. We get together on Friday nights, drink a beer and talk about what has...

Very interesting. I’ll have to check on that.

I’m more interested in the OE Military tune.

Chrysler Customer Care sent me to this dealer because the selling dealer would not do a Customer Satisfaction Recall. The dealer Ive been using did the CSR and a front hub under warranty but balked on doing the door hinge and refused to do it. I have another dealer I have used in the past about...

That’s what I use. I haven’t cleaned mine since I originally did it at around 6k miles and now at 33k miles. I was hoping we were over the air filter BS but evidently not. I’m currently running a FleetGuard filter like the one @Units posted that he was having trouble with. I just completed...

I think the EVIC gauge is driven entirely by differential pressure, so when easing around in town it’s not getting enough turbo boost pressure to increase the dp between the inlet and outlet of the DPF. That’s why it jumps up when you get back out on the highway and then comes back down after...

Keep me posted on your progress. My truck is doing great right now but I have had some times that the DPF percentage on the SG would jump up while on the highway and then start coming back down. These erratic events are what makes diagnosing the issue make me want to pull my hair out. Thankfully...

That’s what is so crazy about it. Some trucks don’t care what filter is used and some go crazy with even the smallest amount of restriction. Or maybe it’s not the filter itself but the housing or one of the many sensors acting up and intermittently giving a bad value to the ECM. A lot of these...

That is the $20,000 question. Nobody can figure it out.

If I’m not mistaken, they (FleetGuard) did change the AF27684 filter at one time but went back to the original design after some of us complained to NashNative a representative for FleetGuard. I think it was mostly supply chain issues but for whatever reason(s) they went back to the original. I...

It looks like if it was a restriction problem that it would get a code for that. I’m of the opinion that it is a tune issue since it corresponds with the new emissions regulations that came out in 2022. Some like myself are squeaking by and some are not. If I do a very limited amount of stop and...

And to add to the confusion: https://hdrams.com/forum/threads/possible-maf-sensor-part-number-update.21253/

It’s a conundrum for sure. The AF 27684 is what is in mine and it’s working. That’s the one I’ll use as long as I can get them.

Mine is a 22’ also.

I personally think it’s something to do with the air filter housing but I don’t have the equipment to check it out. And the tuning.

Just one more instance showing that they don’t know what they’re doing.

Yes. I’ll have to look up the number for it though. https://hdrams.com/forum/threads/new-air-filter-part-number.20855/