3.6L vs 2.0 turbo?? Pros and cons of both??

Crusifix

Well-Known Member
First Name
Jeff
Joined
Mar 8, 2019
Messages
644
Reaction score
1,116
Location
West Virginia
Vehicle(s)
2019 JLU Rubicon 2.0T Hurricane
I remember threads just like this when their was a switch from the 3.8 to the 3.6. Everyone was trying to justify the 3.8...Some people will always be scared of new things. Even when they aren't actually new. A four-cylinder engine is about as simple and basic as you can design. Turbo 4's have been around in the automotive industry for nearly 60 years. There isn't any wizardry to making them work and last a long time. It also isn't as if there is a lot of low RPM load on these engines, as they just don't make enough power below 2K rpms to cause any sort of damage with being in that area of the band. So, that leaves you with issues of having to push the engineto it's redline to make power for towing and just go-ing. That isn't necessary either, as they make plenty of power and torque in the mid range. The 4-cylinder is just fine. It will work and last as long as any other modern engine. If there are issues with it, it is mostly due to a faulty part that happened to be installed, but not due to the architecture of the engine itself.





Advertisement

 

viper88

Well-Known Member
First Name
Nick
Joined
Apr 22, 2018
Messages
3,417
Reaction score
3,161
Location
IL
Vehicle(s)
'19 JLR 2.0T
Cylinder 1 misfire due to faulty spark plug installation. The tip of the plug was missing and is apparently somewhere in the engine.
Sounds like a defective spark plug or faulty installation caused your problems not the actual engine? Hope they get you up and running soon and good luck.
 

Alanaloo

Member
First Name
Alana
Joined
Aug 17, 2020
Messages
15
Reaction score
9
Location
St Louis, MO
Vehicle(s)
2020 JLU Willy's Edition
Sounds like a defective spark plug or faulty installation caused your problems not the actual engine? Hope they get you up and running soon and good luck.
Yes, faulty plug install. However the tip of the plug is missing and is lodged somewhere in the engine. At least that's what I'm told.
 

Punjabi New Yorker

Banned
Banned
Joined
Aug 16, 2020
Messages
306
Reaction score
374
Location
Suffolk County, NY and Punjab, India
Vehicle(s)
2012 Mahindra Thar (in India) - 2.5L Diesel, 4x4, 5 spd Manual ; 2020 JLU Rubicon (in USA) - 3.6 Gas with 8 Speed Automatic
Occupation
Family business in India and USA (dual citizen of both)
Yes, faulty plug install. However the tip of the plug is missing and is lodged somewhere in the engine. At least that's what I'm told.
Any time estimate they gave you for the engine swap? Hope they are talking days or weeks with you rather than months.
 

AnnDee4444

Well-Known Member
Joined
Jan 14, 2019
Messages
2,331
Reaction score
2,421
Location
Earth
Vehicle(s)
Jeep
There’s no comparison between the 3.6 V6 on JK and the 3.6 V6 on JL. The motor has been thoroughly redone; it is much quieter, smoother and responsive.
So what you are saying is that the JL's 3.6 isn't 'tried & true'?

Same one I have seen. Sounds like they talked to someone at FCA, so I would not say they are coming up with their own conclusions.
I disagree, but that's OK.
 

Alanaloo

Member
First Name
Alana
Joined
Aug 17, 2020
Messages
15
Reaction score
9
Location
St Louis, MO
Vehicle(s)
2020 JLU Willy's Edition
Any time estimate they gave you for the engine swap? Hope they are talking days or weeks with you rather than months.
Engine was ordered yesterday, however it is on backorder.....of course. Repair estimate is about 30 days. I won't stand for it. I'm working on getting an entirely new vehicle. I haven't even had it long enough to make my first payment. This is absolutely nuts. I already waited a month to have her delivered brand new and now at 600 miles I need a new engine and have to wait another 30 days.....give me a break.
 

iznthesky

Well-Known Member
First Name
Edgar
Joined
Apr 29, 2018
Messages
380
Reaction score
603
Location
Humble, TX, USA, EARTH, Milky Way Galaxy
Vehicle(s)
2018 Jeep JL Rubicon & 2004 Jeep TJ. Previously owned 1993 Cherokee, 1980 CJ5, & M151A2 while in the Military. For the love of Jeeps !
dspilman wrote:

I was also the proud owner of a TJ, however a few years older, mine was a 1997. I loved that Jeep and put a lot of blood sweat and tears into it. I loved the 4.0L straight six and it served me well. Partially due to my attachment to the 6 cylinder, I elected for the 3.6L in my 2019. However the primary deciding factor was the if I wanted a manual transmission I only had one choice. The MT was a non-negotiable for me. I‘m super happy with the 3.6 so far. I’ve got about 15,000 miles on it so far and it performs great, even with 37” tires on it. My recommendation is the 3.6 with a MT.


I whole heartedly agree....the 6 speed Manual Transmission is a PERFECT match with the 3.6ltr engine...as long as you have the Rubicon gears. Some of my friends complain about the 6 Speed.... but its on their sport model. They find it unbelievable when they ride in my jeep and it runs so well. I rarely down shift from 6th even when climbing the long steep ship channel bridges within the Houston Shipping channel. The Automatic transmission is great...but it you order the Rubicon...dont be afraid to have it paired with the 6speed Manual. Gets great mileage too.
 

Notorious

Well-Known Member
First Name
Kevin
Joined
Feb 11, 2020
Messages
2,040
Reaction score
3,936
Location
North Texas
Vehicle(s)
2000 TJ Sahara
Once in a blue moon it will give you the whole nine yards while handing like it's on rails and stopping on a dime.
Proof that all that glitters isn’t gold and people need not to get their knickers in a twist. Only time will tell.
 

Rodeoflyer

Well-Known Member
First Name
Bert
Joined
Dec 16, 2019
Messages
776
Reaction score
531
Location
Conifer, Colorado
Vehicle(s)
2020 Jeep JLUR; 2016 Ram Powerwagon
Vehicle Showcase
1
This is accurate.. https://www.motor1.com/news/276660/2019-jeep-wrangler-dyno-test-video/

Again.. IF they had offered a 2l turbo option with manual trans I would probably have one. You can implement a few things on the NA 3.6l for more hp/tq and with fuel injection, the altitude degradation isn't bad with the gearing and manual. Also, driveline loss is less with the manual and it's lighter so a comparison of the manual 3.6l in this article would be closer.

As the graphs tell.. at about 3k the 2l gets into boost and starts making more power up to 5k when they're neck and neck, then the 2l falls off. That extra kick between 3-5k is what makes people think the 2l is 'worlds better' lol or whatever they say but doesn't tell the whole story.
 

stevieb92

Well-Known Member
First Name
Steve
Joined
Jun 5, 2020
Messages
117
Reaction score
215
Location
Pittsburgh, PA
Vehicle(s)
2020 JLU Rubicon 2.0t
Occupation
Mechanical Engineer
Yes, faulty plug install. However the tip of the plug is missing and is lodged somewhere in the engine. At least that's what I'm told.
I’m sorry to hear about that. This type of failure can happen to ANY gas engine that uses spark plugs. I hope you get your new Jeep soon!

Are you ordering it exactly the same or was there anything you were unhappy with (regardless of the engine issue) and will be ordering different this time around?
 

AnnDee4444

Well-Known Member
Joined
Jan 14, 2019
Messages
2,331
Reaction score
2,421
Location
Earth
Vehicle(s)
Jeep
This is accurate.. https://www.motor1.com/news/276660/2019-jeep-wrangler-dyno-test-video/

Again.. IF they had offered a 2l turbo option with manual trans I would probably have one. You can implement a few things on the NA 3.6l for more hp/tq and with fuel injection, the altitude degradation isn't bad with the gearing and manual. Also, driveline loss is less with the manual and it's lighter so a comparison of the manual 3.6l in this article would be closer.

As the graphs tell.. at about 3k the 2l gets into boost and starts making more power up to 5k when they're neck and neck, then the 2l falls off. That extra kick between 3-5k is what makes people think the 2l is 'worlds better' lol or whatever they say but doesn't tell the whole story.
FWIW: I looked up the specs on the manual transmission once, and found that the 2.0's torque was beyond the rating of the manual transmission's input.

Another interesting thing is that the 2.0's lower redline means that the gearing would seem lower than in the 3.6. Redline in first gear in the 3.6 auto is about 33 MPH, but the 2.0 is 29 MPH (both with stock Rubicon gearing & tires).
 

BRuby

Well-Known Member
Joined
Nov 28, 2019
Messages
258
Reaction score
258
Location
Backcountry Mtns
Vehicle(s)
JLUR Benz Porsche Subie +
This conclusion seems valid enough. OP should have plenty of info to make a decision now. As this has been hashed out over and over since the 2.0T was introduced in other threads as well.

Key for us is the Rubi gearing.

219C2B88-56EB-4255-AF01-73AC5CBF646F.png
 

Advertisement




Allmoparparts.com
 



Advertisement
Top