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I came from a 2001 5.9 magnum that averaged 10mpg at its best day, i would have killed for 15 lol

I’m averaging 18-20 a tank with a leveling kit and 35’s. I have not recalibrated my speedometer so I’m probably in the 20-24 range but I’m trying to keeep miles off the truck to milk the warranty clock 🙃 also those calculations were pulling a 3000# enclosed trailer for 50-100 miles of the tank

Thanks! I’m still trying to get a tank full of fuel through it without pulling a trailer but I can’t seem to 😂

yes it’s still available sorry I just seen this

Dealer quoted me 300ish to replace number 4. I can’t remember if that included 80ish for the glow plug or not. They attempted it and said it would break off and quoted 8k to replace the head. Better off taking it to an actual diesel shop as opposed to the plug and play dealer who has no skills...

Heater core maybe going out? Most likely egr failing internally if I had to guess. Pull your egr tube where it re-enters the intake and see if it’s sticky.

UPDATE I finally got off my lazy butt and washed the truck! 6 months was too long!!!

No it only shows a message if it’s tuned or it needed one and could not accomplish it during normal driving.

Should be under warranty. If not the egr recall should cover egr and the aem would cover the dpf system

I think it’s funny the O.P. Didn’t bother to say anything back lol

I thought mine was one till I had a glow plug issue and requested the previous service records from the original dealer 600 miles away lol no aem done to mine and I love it so much I tuned it!!

If your ecm is tuned from another company, the flash won’t work. IIRC.

I think there’s a lot of tension and frustration when it comes to comparing what tune to get and a lot of backlash from others when someone speaks their mind about the opinion of what tune is better. No matter what, the truck needs a tune to expect any sort of life span i believe. One person...

Went with SKT based off of availability and ease of tuning when I want. That being said If anyone wants to give me tunes from other people to review I’d be more than willing 🙃

I purchased one from eBay for 100$. Deleted my egr tube just fine. I haven’t had time to completely delete the death valve yet.

UPDATE Approaching the 2500 mile mark tuned. All is well so far. I keep getting a nuisance p04DB when I tow. Also got it the other day on a straight away. It appears my rpms go too low for more than 2 seconds and it trips. If I tow in manual mode I’m fine. I DO NOT ATTRIBUTE THIS CODE TO THE...

I haven’t seen a motor that doesn’t have an issue. Google around you’ll see new and used Cummins and duramax and p strokes in shops for issues.

Got mine at 113k deleted egr at 133k. So far all stock motor excluding intake plentum and egr previous owner did at 109k per service records. It’s all a lottery when you buy used.

Egr delete seems to be number 1. Tune it. Dpf/scr delete if desired, and dealer told me don’t go over 7k on oil changes. 8k only if you absolutely need to.

I remember reading somewhere the mufflers were the same for the 3.0 and the 5.7 that’s why they mass produced the straight pipe. I’ll look today if I get some time at work