There is no perfect engine

[vegasblue]

I owned a 2017 JKU Recon with 35" tires and a 4" lift. Due to life, I had to let it go. I now have a JLUR 2.0T. This one has a 2.5" Clayton lift, 35" tires. I wheel/wheeled them both.

1) I like the stock exhaust sound of the 2.0T. It reminds me of the way my dad's CJ5 and my uncle's CJ3B sounded. I'd like to make it a bit louder honestly
2) The 2.0T engine on start up sounds like a sewing machine with an exhaust leak.
3) My JKUR was much slower and harder to coax into getting up to speed. I attribute this more to the transmission than anything else. The 2.0T with my mods is honestly a kick in the pants to drive!
4) 2.0T gets right up to 97mph without much effort....up to 97....97......97....97. (i had to try it once)
5) Off roading: I have a very light foot. Very. I notice zero difference between the two powerplants. Other than the F35 jet electric fan. I guess it's beneficial for scaring off bears.
6) Longevity, well, we shall see. There are a plethora of 2.0T vehicles out there of all makes. Must be on to something.
7) I run 87 because my work pays for it. I use only top tier gas. I tried both 87 and 91, I didn't notice a difference. You don't HAVE to run 91. Funny how that still is brought up even in the post following another stating otherwise.
8) Gas mileage. Well, the 3.6 would get 14mpg at 70mph. The 2.0T is getting 15mpg at 75-80mph. I backed off and climbed up to 17-18mpg.

I drove a 2020 JLU in Hawaii with the 3.6, but of course zero modifications running street tires. It was fine. I don't know how to explain it, but the 2.0T is more fun. I think the glaring omittance that should be brought up is axle ratios are going to provide different results for different power plants.

For the record, I just didn't want the diesel. Just personal preference. I didn't consider the 392 because all dealers around here had a $25K markup on them and the window sticker estimated EPA numbers were scary. I already knew the dollar amount I would be dumping into the Jeep so I chose a lower starting point.

I couldn't be happier with my little F35 sounding, sewing machine exhaust leaking, 2.0T. Fool yourself all you want, none of these powerplants hold a candle to the sound of the 392. Besides, I chuckle whenever I hear a V6 with an aftermarket exhaust. "Should have had a V8." At least with the four banger, you know you sound like a lawnmower.

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[aldo98229]

A Jeep with a Hellcat engine

 

[Outrun]

A Jeep with a Hellcat engine

 

[00 Trans Ram]

The worst part of the ecodiesel is the ESS. Totally useless 'requirement' on that motor.

Disable it with the Tazer.

I agree, I hated it. Got the Tazer, and now it's the perfect engine.

 

[Herson]

Just completed a buyback for 1 today and there are 2 more that have 10 more days left before they go into buyback status. Cylinder heads are on forever back order and they are still dropping seats and the cams are still messing up. The one that went into buyback has 208 miles on it, the other 2 under 40k. This is not counting pre-19s that I have done, replaced hundreds of heads and at least 40 motors this year alone. The 2.0? Since it came out, replaced 2 motors and a timing tensioner.

I am not knocking people that like them. I would prefer people buy them, I make a ton of money off of them, since this new law passed in California, warranty work pays more than customer pay. FCA/Stellantis pays me 120% over cost to fix them, thats more than double of retail.

I was just sharing the reason why I wouldn't buy one. Maybe they finally figured it out, maybe they didn't, to each his own. Buy what you like and what fits your needs.

Have you replaced a turbo? There is a thread about a turbo rattle/noise possibly from the waste gate actuator while deceleration around 30 miles and 1500-2000 rpms. Mine does it but there is no power loss and I would like to know more if you have heard about this. Thanks.

 

[zdr]

I have a JLUR with V6 manual with 2,300 miles. I noticed an unhealthy sounding noise today when I parked and got out leaving it run. It's a loud ticking/clicking sound. Is this normal??

 

[Outrun]

I have a JLUR with V6 manual with 2,300 miles. I noticed an unhealthy sounding noise today when I parked and got out leaving it run. It's a loud ticking/clicking sound. Is this normal??

Loud, no. Ticking, yes.

 

[zdr]

Loud, no. Ticking, yes.

It's not extremely loud but it definitely stands out.

 

[SilverBackJLCA]

Have you replaced a turbo? There is a thread about a turbo rattle/noise possibly from the waste gate actuator while deceleration around 30 miles and 1500-2000 rpms. Mine does it but there is no power loss and I would like to know more if you have heard about this. Thanks.

I haven't done one, I know there is an internal bulletin referencing high idle which is making the turbos noisy. Average national demand, which means, all the dealers in the country order 10 a week. Just for scope, the average weekly demand for 3.6 camshafts, if you total them up is about 1600 per week.

So it looks like there are Turbos being replaced and Chrysler is aware of the issue, but it looks like they will probably push it off and say it is "as designed" since it is not effecting performance or throwing codes.

 

[bruin1md]

It's not just single turbo design. My M2, which has proper twin turbos still has lag. It's unavoidable.

I owned a 2019 M2 in a 6MT for a year and got rid of it.
I bought the hype, such as guys like Jeremy Clarkson calling it the best M car since the E46 and couldn't wait to get it.
The car just didn't do it for me for a variety of reasons (not crazy about the chassis, body roll, and just lack of 'soul').
I felt the turbo lag wasn't horrible actually. Anyway, I sold it and got a Shelby GT350, and never regretted that decision.

I've heard your M2 CS is a different animal, however.

 

[Herson]

I haven't done one, I know there is an internal bulletin referencing high idle which is making the turbos noisy. Average national demand, which means, all the dealers in the country order 10 a week. Just for scope, the average weekly demand for 3.6 camshafts, if you total them up is about 1600 per week.

So it looks like there are Turbos being replaced and Chrysler is aware of the issue, but it looks like they will probably push it off and say it is "as designed" since it is not effecting performance or throwing codes.

Thanks for your reply!

 

[Killed by Death]

I owned a 2019 M2 in a 6MT for a year and got rid of it.
I bought the hype, such as guys like Jeremy Clarkson calling it the best M car since the E46 and couldn't wait to get it.
The car just didn't do it for me for a variety of reasons (not crazy about the chassis, body roll, and just lack of 'soul').
I felt the turbo lag wasn't horrible actually. Anyway, I sold it and got a Shelby GT350, and never regretted that decision.

I've heard your M2 CS is a different animal, however.

I'm not a big Jeremy Clarkson believer!!! Never owned a E46 for comparison.

My only other M cars were an E92 and F82....I prefer driving the short wheel base M2C over both. However I do miss the NA power delivery and scream of the E92. I was tempted by the GT350 but I don't trust any of the Ford dealers around here.

No, the turbo lag isn't terrible but it's still there. I posted about my M2C mainly for the folks that think lag is a thing of the past...IT'S NOT...However, it all depends on driving style if lag is an issue or not.

It's a big issue for me and I don't like it. Enjoy your GT350!!!

 

[Usethis83]

I've had most of the major jeep engines: a few 4.0s, an AMC 360, a 4.2, a 3.6, a 2.0 and now, a 6.4. I never wanted the diesel because I only drive like 3,000 mile a year. I have had a few diesel trucks and they were great ONCE DELETED. It would sit most of the time and I don't know if deletes are even available for it.

Here is how I would rank based on my own experience: 6.4 (just got it so cant say longer term, so far really bitchin), The 2.0 was an awesome motor with torque at low rpm, the 4.0 for reliability, parts availability and simplicity . Then the 3.6, then the 4.2 and never again on the AMC 360. I also put a 6.0 LQ4 in my YJ (highly recommended, but not jeep).

I hope the 6.4 performs long term, so far it is great experience.

 

[Zandcwhite]

I've had most of the major jeep engines: a few 4.0s, an AMC 360, a 4.2, a 3.6, a 2.0 and now, a 6.4. I never wanted the diesel because I only drive like 3,000 mile a year. I have had a few diesel trucks and they were great ONCE DELETED. It would sit most of the time and I don't know if deletes are even available for it.

Here is how I would rank based on my own experience: 6.4 (just got it so cant say longer term, so far really bitchin), The 2.0 was an awesome motor with torque at low rpm, the 4.0 for reliability, parts availability and simplicity . Then the 3.6, then the 4.2 and never again on the AMC 360. I also put a 6.0 LQ4 in my YJ (highly recommended, but not jeep).

I hope the 6.4 performs long term, so far it is great experience.

When you only drive 3k miles a year, there's no other choice than the 392. Our 20k in road/wheeling trips in the last year would make that fuel economy really hurt. Our 2.0t has been amazing. I agree about the other jeep engines, although the 360 in my wagoneer wasn't bad after a cam swap and fuel injection conversion. I was skeptical of the turbo 4 cylinder, until I drove it. Pulls steep mountain grades better than any other jeep I've owned, including our 4.7L v8 grand Cherokee. It's no 6.4L, but it's very good especially at the cost difference between it and the diesel or hemi.

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