Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > Trouble Shooting/Problems/Service

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #13  
Old 12-15-2011, 12:38 AM
jgc4ever's Avatar
Senior Member
My Jeep: 2012 5.7L WK2
 
Join Date: Mar 2011
Posts: 3,178
Thanks: 0
Thanked 76 Times in 67 Posts
Rep Power: 1160192
jgc4ever has a reputation beyond reputejgc4ever has a reputation beyond reputejgc4ever has a reputation beyond reputejgc4ever has a reputation beyond reputejgc4ever has a reputation beyond reputejgc4ever has a reputation beyond reputejgc4ever has a reputation beyond reputejgc4ever has a reputation beyond reputejgc4ever has a reputation beyond reputejgc4ever has a reputation beyond reputejgc4ever has a reputation beyond repute
Garage
Re: transmisson shift

I've noticed the same thing and I haven't got the hang of giving it enough gas every time I take off from a light. Sport mode is definitely an improvement.

I have a 2012 WK2 with 5.7L V8 Hemi 6 speed
__________________

__________________
Reply With Quote
  #14  
Old 12-15-2011, 04:13 AM
New Member
 
Join Date: Oct 2011
Posts: 4
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 0
muddauber3.6 is on a distinguished road
Re: transmisson shift

We should not be having this problem, and having to accelerate faster just to hold 2nd gear longer. Thats not normal at all and have never seen a vehicle act like this before. I will be talking to my dealer soon about adjusting the shift pattern. It's all computerized so I see no reason they could'nt delay the shift from 2nd to 3rd gear by say a few hundred rpms.
__________________

__________________
Reply With Quote
The Following User Says Thank You to muddauber3.6 For This Useful Post:
  #15  
Old 12-15-2011, 07:04 AM
lll2for3lll's Avatar
Premium Member
My Jeep: 2005 3.7L WK
 
Join Date: Dec 2010
Location: North Myrtle Beach, SC
Posts: 6,330
Thanks: 486
Thanked 60 Times in 58 Posts
Rep Power: 469712
lll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond repute
Garage
Re: transmisson shift

Quote:
Originally Posted by muddauber3.6 View Post
We should not be having this problem, and having to accelerate faster just to hold 2nd gear longer. Thats not normal at all and have never seen a vehicle act like this before. I will be talking to my dealer soon about adjusting the shift pattern. It's all computerized so I see no reason they could'nt delay the shift from 2nd to 3rd gear by say a few hundred rpms.
The 5.7 WK owners on here are able to adjust their shift points with an afternarket tuner and they say it feels like a completely different vehicle when they make those changes.

It's a shame it takes an aftermarket tuner to reveal the true beauty that the Jeep has. I made a comment earlier about Chrysler not tuning these things to the best of their ability.
__________________
Jeep: 2005 WK | OME Lift Kit & 1.5 Rear Coil Spacers (3" of lift front & rear) | 255/75/17 BF Goodrich Mud Terrain KM1 on stock wheels (no spacers) | SCT Tuner with 93 Octane Tune | Fastman TB | K&N 77 Series | Pioneer 7" Double Din | Pioneer D-Series 6 Speaker Upgrade | Custom Rear Peek-A-Boo Camera | 5K TRS XB35 HID Bulbs & Mini Morimoto Retrofitted Projectors | Parking Lights Deleted | PIAA 510 in OEM foglight location modded for OEM foglight harness | 6K V-LEDS Reverse | 5K V-LEDS License Plate | 6K V-LEDS Interior | Custom Overhead Console Blue Ambient Light | LXHarness Complete Blue Interior Upgrade | 5% on top of 20% Tint & 50% on the whole windshield | Debadged
Bike: 2009 Yamaha Raven R1 | CrossPlane | Far from stock | Quicker/Faster than your SRT
Reply With Quote
  #16  
Old 12-15-2011, 07:26 AM
Member
 
Join Date: Dec 2010
Posts: 49
Thanks: 0
Thanked 2 Times in 1 Post
Rep Power: 1365
Gearhead is on a distinguished road
Re: transmisson shift

I have to think the transmission is tuned this way to get the best MPG rating from the EPA. Big mistake IMHO. What's the point of capturing the sale if you give the customer an inferior experience with your product? This is 'old Detroit' thinking and should be banished forever. Because of this issue I'd have a hard time recommending the V6 Jeep even though I think it's an amazing machine in all other ways.
__________________
Reply With Quote
  #17  
Old 12-15-2011, 09:18 AM
lll2for3lll's Avatar
Premium Member
My Jeep: 2005 3.7L WK
 
Join Date: Dec 2010
Location: North Myrtle Beach, SC
Posts: 6,330
Thanks: 486
Thanked 60 Times in 58 Posts
Rep Power: 469712
lll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond reputelll2for3lll has a reputation beyond repute
Garage
Re: transmisson shift

Quote:
Originally Posted by Gearhead View Post
I have to think the transmission is tuned this way to get the best MPG rating from the EPA. Big mistake IMHO. What's the point of capturing the sale if you give the customer an inferior experience with your product? This is 'old Detroit' thinking and should be banished forever. Because of this issue I'd have a hard time recommending the V6 Jeep even though I think it's an amazing machine in all other ways.
That's the point I've been trying to make. I'm sure the V6 Pentastar isn't bad at all but tuning just isn't there. I'm sure if there is ever an aftermarket tuner available, the experience will be a lot better.

Another point I've been trying to make is that I'm not about to spend around $35,000 if I feel that is a problem. The shift points on my WK use to drive me crazy. I'm not doing that ever again.

I'm sure Chrysler could have given this more thought.

I'm goin to stop before somebody else get upset from my post but I'm glad to see that some WK2 3.6 owners understand what I'm saying and I hope there is aftermarket tuning in the future for you guys.
__________________
Jeep: 2005 WK | OME Lift Kit & 1.5 Rear Coil Spacers (3" of lift front & rear) | 255/75/17 BF Goodrich Mud Terrain KM1 on stock wheels (no spacers) | SCT Tuner with 93 Octane Tune | Fastman TB | K&N 77 Series | Pioneer 7" Double Din | Pioneer D-Series 6 Speaker Upgrade | Custom Rear Peek-A-Boo Camera | 5K TRS XB35 HID Bulbs & Mini Morimoto Retrofitted Projectors | Parking Lights Deleted | PIAA 510 in OEM foglight location modded for OEM foglight harness | 6K V-LEDS Reverse | 5K V-LEDS License Plate | 6K V-LEDS Interior | Custom Overhead Console Blue Ambient Light | LXHarness Complete Blue Interior Upgrade | 5% on top of 20% Tint & 50% on the whole windshield | Debadged
Bike: 2009 Yamaha Raven R1 | CrossPlane | Far from stock | Quicker/Faster than your SRT
Reply With Quote
  #18  
Old 12-15-2011, 04:54 PM
ajs800's Avatar
Member
My Jeep: 2011 3.6L WK2
 
Join Date: Jun 2011
Location: Michigan
Posts: 736
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 31981
ajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond repute
Re: transmisson shift

I don't think it's just the 3.6. When I drove the hemi, i noticed similar issues, just not as noticeable given the extra HP. I had a horrible luggin issues between 3-4 in my WK 4.7 and now have the 2nd gear issue with my overland. However, it doesn't seem to bother me as much this time for some reason.
__________________
2011 Overland, Dk Charcoal Pearl, Black/Saddle w/Summit Wood Trim Swap, V6, QL, 20" wheels, 730N
Reply With Quote
  #19  
Old 12-15-2011, 06:01 PM
Member
My Jeep: 2012 3.6L WK2
 
Join Date: Nov 2011
Location: Charlotte, NC
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 991
mjkepley is on a distinguished road
Re: transmisson shift

Same deal. Auto should perform shifts like Sports Mode does. A transmission should not bog down under normal acceleration. Come on Jeep, come out with a decent tune for Auto mode!
__________________
Reply With Quote
  #20  
Old 12-15-2011, 08:35 PM
Member
 
Join Date: Jun 2011
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1188
Jimbo is on a distinguished road
Re: transmisson shift

I noticed the rapid upshift in the transmission. In addition, I think I hear preignition (pinging) too during acceleration. Does anyone hear pinging in the 2012 WK2?
__________________
Reply With Quote
  #21  
Old 12-15-2011, 08:45 PM
Member
 
Join Date: Dec 2010
Posts: 49
Thanks: 0
Thanked 2 Times in 1 Post
Rep Power: 1365
Gearhead is on a distinguished road
Re: transmisson shift

I clearly heard pinging a couple of times after making a 90 degree turn then going uphill. The transmission was totally confused. I'd estimate I slowed from 40 mph to 15 and the trans was probably still in 3rd when I depressed the accelerator. As often happens I increased pressure on the accelerator and the trans just refused to respond. Felt like I was going backwards. Sport mode from then on.
__________________
Reply With Quote
  #22  
Old 12-15-2011, 08:55 PM
Member
 
Join Date: Jun 2011
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1188
Jimbo is on a distinguished road
Re: transmisson shift

I will try sports mode.
__________________
Reply With Quote
  #23  
Old 12-15-2011, 10:33 PM
ajs800's Avatar
Member
My Jeep: 2011 3.6L WK2
 
Join Date: Jun 2011
Location: Michigan
Posts: 736
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 31981
ajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond reputeajs800 has a reputation beyond repute
Re: transmisson shift

sport mode makes a huge difference, although with the QL, the ride is much, much firmer.
__________________

__________________
2011 Overland, Dk Charcoal Pearl, Black/Saddle w/Summit Wood Trim Swap, V6, QL, 20" wheels, 730N
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Transmisson drops to neutral - power off solution? tcjeep Wrangler-JK 2 09-17-2011 08:20 AM
Transmisson shift problem btufts Troubleshooting/Problems 3 09-10-2011 01:05 PM
Stick Shift? LostAbbott Suspension/Driveline/Brakes/Wheels/Tires 6 04-26-2011 05:23 PM
Shift Lever Steve52 Suspension/Driveline/Brakes/Wheels/Tires 21 08-29-2010 11:04 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 10:03 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community