Diesel Engine issue tracking thread... also please post if NO issues!

[Minty JL]

Rolled 33k, no issues outside of crap batteries and a faulty abs sensor at under 2,000 miles iirc.

Limitations? Yes, the cooling system ain’t it in the desert hills, especially in the summer, especially with 37’s and especially with stock gears.



I’d wager there are more per capita 3.6 top end failures and misfires than 3.0 anything combined.

Well 2 years, 25k miles and 11 states no issues with the 3.6; just O2 sensors and rear axles seals.......but nothing that has stranded me on a trip or what not.

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[jackalope]

I’m at 9700 miles. At about 3000 miles had a CEL that cleared by the next morning. Thankfully as I was way out in the middle of nowhere Utah four wheeling. Had another CEL at about 6000 miles when I was in Death Valley and it was 122 degrees outside. It had cleared by the next morning. Took it to dealer a few weeks ago. Here’s what the repair invoice says: “CEL on for several dtcs, p0341, p2d2d, p2d2e, p0016, and p026d. Performed supplied diagnostic procedure for SET. Attached several photos of PCM connectors, CMP connector, sensor and tone wheel. Performed measurements on tone wheel and measurement of sensor. Performed measurements for resistance values of sensor and star center confirmed readings, vehicle can be returned to customer.“

They kept it for two weeks and gave it back to me. Just yesterday CEL came back on and went off after three hours of highway driving. Apparently ”engineering“ is working on a resolution to correct the intermittent p0341. So another trip to the dealer is in store. This is kind of a pain, because other than the CEL coming on whenever I’m like 500 miles from home, I absolutely love this Jeep. Hearing the rumble of that diesel when I fire it up, priceless. The torque when four-wheeling in 4 Lo, amazing.

 

[Clark Kent]

Just hit 92,000 miles on my 2021. No issues and I have run fuel treatment in every tank… it is both the best vehicle I’ve owned … but also the worst because I’m always wondering if and when something will go wrong… it’s a jeep thing.

 

[AlpineChip]

10k miles without any issues. HPFP replaced. Low miles but, a lot of camping adventures (RTT) and many smiles.

 

[BuckeyeButch]

2021 53,500K
No engine issues, 1 electrical issue, had fuel pump recall.

 

[Tim. Y.]

21,818 Miles. HPFP replaced. Getting slightly lower Hwy MPG, but slightly higher City by a hair. Other than the visor clip failing, it's been the perfect truck. Love the ride. Love the color. Love the purr and power of the engine.

 

[Stuntman Mike]

16k miles without any issues.
Have a smile on my face everytime I press the start button.

Still waiting for my HPFP replacement.

Monday I will get the HPFP replaced. After only 5 months waiting ...

 

[vicsvx]

21 SPORT S, 45K miles. All recalls performed all before 38k miles. No issues with anything (other than recalls)

started using hotshots after the fuel pump recall around 38k miles

 

[RoamingGladiator]

21 Rubicon with 64,000km on it. I've had the HPFP recall, and the butterfly valve replaced in my exhaust. Other than that, it's been flawless. I run hotshot performance 2oz every single tank, and usually every oil change I'll do a tank of hotshot concentrate.

 

[Belcher24256]

22 Rubicon and I’m at 20,000 miles, no issues whatsoever and no CEL’s. Love the truck and the engine.

 

[vicsvx]

46k and no issues. Started to use EDT around 6k miles ago after HPF recall was completed. Love this thing

 

[DesertDog]

Getting a lot of miles on mine. Despite the issues, I really wish the diesel was still available. At some point I’m going to need another one. The puny Pentastar is fine in my JL six speed but I’d never try to pull anything with it. Jeep needs to pay attention to the market for customers who need to PULL! Enough of this electric goofball talk.

 

[Teqsand]

We have 2, hers is a 21 JLURD with like 76k No issues.... mine is 23 JTRD with 26k and no issues....
My 22 JTRD was bought back by jeep for the HPFP issue
All 3 were ordered new and been all over, she has 14 BOH's to include doing the Rubicon and MOAB

 

[1945gpw]

We have 2, hers is a 21 JLURD with like 76k No issues.... mine is 23 JTRD with 26k and no issues....
My 22 JTRD was bought back by jeep for the HPFP issue
All 3 were ordered new and been all over, she has 14 BOH's to include doing the Rubicon and MOAB

What brand/size lift and tires do you have on the JT? Looks good!

 

[Teqsand]

What brand/size lift and tires do you have on the JT? Looks good!

I used a full RUSTY's 4" and I love it, super quality and value for the money....

That said if I had to do it again, I would not use the Rustys shocks and put that money towards form Falcons for something

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