Guess what failed on this 3.0L

[Tuna]

Another tear down by Eric. It’s crazy how much this engine has on top just to get to the block. Service nightmare, hope mine holds up ??

Sponsored

 

[Koolcarguy]

Another tear down by Eric. It’s crazy how much this engine has on top just to get to the block. Service nightmare, hope mine holds up ??

My son had a 18 Grand cherokee it kept throwing an engine light he took his emissions stuff off and it was almost totally clogged he cleaned it out ran beautifully my tech said run good diesel injector cleaner in it he has for the last 4 years pulled it apart a month or so ago was very clean I was impressed withe difference

 

[Lunentucker]

That was ugly.

The intakes - yuck.

 

[rharr]

It is to be noted that the motor in the video is a 2014 motor, which i believe is a gen2. Not that it matters much cause i don't think they changed bearing design between 2 and 3.

 

[Vtur]

Great ideas, bad engineering led to overly complex design = expensive to maintain and less reliable. It's a European thing ?

 

[DylanM]

Being out of a 2014 Grand Cherokee, I wonder if the bearing failure was due to following the original 5w-30 oil spec shown in the owner's manual.

 

[acmesix]

Another tear down by Eric. It’s crazy how much this engine has on top just to get to the block. Service nightmare, hope mine holds up ??

From the looks of overall condition of the motor I would say the owner is what failed on this motor.

I love watching this guy he is entertaining. But I wouldn't let him oil a bike chain professionally.

 

[RoamingGladiator]

Best thing you can do to a 3.0 is to delete it and clean it... The emission systems are absolute engine killers.

 

[ErylFlynn]

Why is it so caked with soot/ash inside? Why is it not being burned or exhausted? Seems to be a huge issue with the motor.

 

[RoamingGladiator]

Why is it so caked with soot/ash inside? Why is it not being burned or exhausted? Seems to be a huge issue with the motor.

Good ol' emissions. The EGR system just pumps shit into the engine over and over.

 

[DylanM]

Why is it so caked with soot/ash inside? Why is it not being burned or exhausted? Seems to be a huge issue with the motor.

The EGR system is one of the big changes from the Gen2 shown in the video to the Gen3 used in the JT. Most importantly, the new system also pulls exhaust gasses from downstream of the DPF so that soot getting routed back into the intake is greatly reduced versus the previous system which only pulled from near the turbo. A lower compression ratio was also used which reduces NOx production, thus reducing the amount of EGR needed in the first place.
https://www.jeepgladiatorforum.com/forum/threads/whats-changed-on-the-gen-3-ecodiesel.20734/

 

[dmwphoto]

Best thing you can do to a 3.0 is to delete it and clean it... The emission systems are absolute engine killers.

the best thing in my opinion is to avoid it

 

[biodiesel]

It is to be noted that the motor in the video is a 2014 motor, which i believe is a gen2. Not that it matters much cause i don't think they changed bearing design between 2 and 3.

The 2014 - 2019 is the Gen 2 engine. The 2020 - 2023 is the gen 3 engine. The bearings have been upgraded in the gen 3, both in size and material.

 

[biodiesel]

Being out of a 2014 Grand Cherokee, I wonder if the bearing failure was due to following the original 5w-30 oil spec shown in the owner's manual.

The issue on the 2014 - 2019 engine was mostly quality control. The factory wasn't designed to handle those large production numbers. It's one reason why some engines last 500,000 miles and other engines are toast at 15,000 miles.

 

[biodiesel]

Best thing you can do to a 3.0 is to delete it and clean it... The emission systems are absolute engine killers.

EGR isn't as bad as we think for engine longevity. EGR, however, is hard on the intake and EGR cooler. I use my 2015 EcoDiesel mostly as a tow rig. I've gone through a few EGR coolers, but I'm still on the factory intake. I'm currently at 120,000 miles on that truck.

The highest mileage stock 2nd gen EcoDiesel had 433,323 miles on it the last I checked, which was about a month ago. There are several with over 300,000 miles (bone stock).

Sponsored