Weak Throttle Response on Manual Transmission Models?

Edslittleworld

Active Member
First Name
Ed
Joined
Oct 2, 2018
Messages
29
Reaction score
16
Location
Tucson
Vehicle(s)
2021 Rubi, Miata ND, BMW M2, 2014 S1000R & R1200GS
I picked up a 2021 JL Rubicon (2-Door) with a 6-spd manual transmission after it sat in a staging area for several weeks. Apparently, there was a Recall (W12 or Y01) that said all JL models like mine needed the fuel injection to be remapped as there were apparently clutch wear issues with the throttle take-off being too aggressive. Well, I think they went too far the other way. Under 2000 rpm, my 3.6L is essentially powerless compared to my 2017 Wrangler with the same configuration. I mean gutless until the revs climb over 2500 rpm. I find it unsatisfactory. It now has 700 miles on it. Any others in this situation?





Advertisement

 
Last edited:

Punknhed

Well-Known Member
First Name
Chris
Joined
Nov 28, 2018
Messages
275
Reaction score
416
Location
Virginia
Vehicle(s)
2019 Wrangler unlimited sport
unfortunately that is how a lot of our jeeps are w the 6spd, between the tuning and the gearing a guy could walk faster from a stop light.
 

LunchBoxFab

Well-Known Member
Joined
Jan 7, 2019
Messages
304
Reaction score
248
Location
NOLA
Vehicle(s)
19 JLUR
Vehicle Showcase
1
I picked up a 2021 JL Rubicon (2-Door) with a 6-spd manual transmission after it sat in a staging area for several weeks. Apparently, there was a Recall (W12 or Y01) that said all JL models like mine needed the fuel injection to be remapped as there were apparently clutch wear issues with the throttle take-off being too aggressive. Well, I think they went too far the other way. Under 2000 rpm, my 3.6L is essentially powerless compared to my 2017 Wrangler with the same configuration. I mean gutless until the revs climb over 2500 rpm. I find it unsatisfactory. It now has 700 miles on it. Any others in this situation?
yeah, i had the same issues. the idrive pedal commander really helped dial in the pedal feel and response i was hoping for. the stock pedal input was wonky, at best.
 

Rufus

Well-Known Member
Joined
Jun 2, 2019
Messages
722
Reaction score
599
Location
NYC
Vehicle(s)
2018 2 door JL Sport 3.6 V6
The 3.6 with the 6spd is a pig under 2k RPMs, especially if you go up in tire size. I would think you’d have a better experience with the Rubi stock gearing than us Sport owners do though.

I haven’t had the remapping recall for the clutch issues done yet though.
 

Petey

Well-Known Member
First Name
Pete
Joined
Oct 10, 2020
Messages
448
Reaction score
227
Location
Miami
Vehicle(s)
2020 jl sport manual
I picked up a 2021 JL Rubicon (2-Door) with a 6-spd manual transmission after it sat in a staging area for several weeks. Apparently, there was a Recall (W12 or Y01) that said all JL models like mine needed the fuel injection to be remapped as there were apparently clutch wear issues with the throttle take-off being too aggressive. Well, I think they went too far the other way. Under 2000 rpm, my 3.6L is essentially powerless compared to my 2017 Wrangler with the same configuration. I mean gutless until the revs climb over 2500 rpm. I find it unsatisfactory. It now has 700 miles on it. Any others in this situation?
what years did they start with the new curve. I have 2020 and mine seems to have this map ...I never took it to the dealer but is it posible they were doing this last year already?
 
OP
OP
Edslittleworld

Edslittleworld

Active Member
First Name
Ed
Joined
Oct 2, 2018
Messages
29
Reaction score
16
Location
Tucson
Vehicle(s)
2021 Rubi, Miata ND, BMW M2, 2014 S1000R & R1200GS
Well that sucks... I have a 2 dr JLR manual on order
You may want to think twice, then. There are times when it's just gutless. If no flash (re)upgrade can be made...this slug may be kicked to the curb.
 

OldGuyNewJeep

Well-Known Member
Joined
Sep 21, 2017
Messages
3,111
Reaction score
5,052
Location
CT
Vehicle(s)
2018 Wrangler JL, 2016 Yukon XL
🤔

Sorry to be Steve Jobs, here, but you’re holding it wrong.

Yes, if you lug the engine it’s “a pig.” Don’t do that. The 3.6 likes to rev. It doesn’t redline until 6,500… no need to ever keep rpm under 2000 like you’re doing.

Yes, 6th gear is useless in stock configuration. Yes, reverse is too tall.

My 6sp with 4.10’s (Rubicon) is excellent. I hear that with 3.45’s it’s not a great on-road experience.

Throttle response is not an issue.
 

grimmjeeper

Well-Known Member
Joined
May 6, 2021
Messages
161
Reaction score
296
Location
Castle Rock, CO
Website
www.grimmjeeper.com
Vehicle(s)
1987 Comanche, 2001 Cherokee, 1997 F250
This isn't a new issue. I had a 3.6 with the manual in my 2012 JK, the first year of the 3.6. It was gutless below 2k then too. And I had 3.21 gears which made it worse. A BullyDog tune made it better but regearing it was the only real solution.
 

Krondor

Well-Known Member
First Name
Gary
Joined
Jan 23, 2018
Messages
12,664
Reaction score
78,552
Location
Golden, CO
Vehicle(s)
2018 Punk'n Edition JLR
Build Thread
Link
🤔

Sorry to be Steve Jobs, here, but you’re holding it wrong.

Yes, if you lug the engine it’s “a pig.” Don’t do that. The 3.6 likes to rev. It doesn’t redline until 6,500… no need to ever keep rpm under 2000 like you’re doing.

Yes, 6th gear is useless in stock configuration. Yes, reverse is too tall.

My 6sp with 4.10’s (Rubicon) is excellent. I hear that with 3.45’s it’s not a great on-road experience.

Throttle response is not an issue.
giphy.gif


Must go faster. (Push the skinny peddle!)

This motor likes to spin. Mine is also doing well on 87 here above 5000 feet (our mid grade). I'd be using 91 octane at lower elevations. It's a high compression motor and runs better with the good stuff.
 

JRINGO77

Well-Known Member
First Name
John
Joined
Feb 11, 2020
Messages
63
Reaction score
83
Location
Houston TX
Vehicle(s)
2021 JLUR
I wouldn't worry about it. I test drove a new Rubi manual and I liked it so much that it made my decision to special order a JLR w/ the 3.6 & manual over taking the 2.0 automatic off the lot.
Same
 

JRINGO77

Well-Known Member
First Name
John
Joined
Feb 11, 2020
Messages
63
Reaction score
83
Location
Houston TX
Vehicle(s)
2021 JLUR
🤔

Sorry to be Steve Jobs, here, but you’re holding it wrong.

Yes, if you lug the engine it’s “a pig.” Don’t do that. The 3.6 likes to rev. It doesn’t redline until 6,500… no need to ever keep rpm under 2000 like you’re doing.

Yes, 6th gear is useless in stock configuration. Yes, reverse is too tall.

My 6sp with 4.10’s (Rubicon) is excellent. I hear that with 3.45’s it’s not a great on-road experience.

Throttle response is not an issue.
I agree. what small displacement gas engine has a bunch of torque at 2k rpm? Only vehicle I've ever had that did is my 6.7 powerstroke...not the same animal. I'm personally not looking at the dash when driving a stick it's by feel and sound.
 

wandrur

Well-Known Member
Joined
May 5, 2021
Messages
47
Reaction score
46
Location
Fredericksburg, VA
Vehicle(s)
2021 JL Unlimited Rubicon
2021 JLUR with the manual transmission. Low RPM power is good for me. Sure, if you floor it in an upper gear, you don't exactly lurch forward, but other than the wonky dip at 45mph, it's got very good throttle response and is certainly tuned to be quicker than my 2018 JKU.
 

Advertisement




Winjet
 



Advertisement
Top