9 speed transmission? - Page 5 - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > 2014+ Cherokee-KL

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #49  
Old 10-26-2014, 09:57 AM
m_iOS_dev's Avatar
Member
My Jeep: 2014 3.2L KL
 
Join Date: Sep 2014
Location: Bedford, NS
Posts: 33
Thanks: 39
Thanked 4 Times in 4 Posts
Rep Power: 885
m_iOS_dev is on a distinguished road
9 speed transmission?

Quote:
Originally Posted by Jeepster910 View Post
Its all in the gears............................... on this 9 speed I would guess.
I had a Grand Cherokee V8 before this Cherokee. This V6 Cherokee runs much lower RPMs on the highway than the V8 (4spd w/ OD) ever did.
What's interesting is at 70 mph my mpg is increasing and on my Grand (V8) it was decreasing. Something like 19 mpg (V8) vs 32+ on the V6 Cherokee. That's huge and likely a lot to do with the 9 speed.

The pay off will be there for us for sure. I just wish that Chrysler would put a wrap around on the visor or something to warn the customer of proper break in. I think it would save them a lot of grief. For some reason I think this Cherokee is susceptible to bad things if not broken in or stressed early on. I know differentials are very susceptible to damage with excessive heat and improper/damaged lube. I went through that with my 2001 Cherokee Sport w/off road pkg. The dealer used reg. axle lube instead of synthetic which was called for with the tow group. The only reason for that was heat produced when towing on those gears.
You have many, many good miles ahead for you with this great vehicle!

Wow, this thread feels like reliving the good old days again.

I think it was in the early 2000s that the automakers led us to believe that their vehicles would not require a proper break-in procedure. We all got spoiled, didn't we...

I am going to put those extra notes on the vehicle myself, before anyone from my Family attempts to drive it, to play it safe.

The sad reality is that the dealerships do NOT know the products they sell, at lest not well enough. The KL that I tested had less thank 50 miles on it. I was taking care of it for an hour-and-a-half gently, similarly to what the manual calls for. The guy that took it for a spin once I was done with mine, a totally opposite story. The sales people never said a word. At the the end someone bought that car...

Now, when you think about the benefits, it makes so much sense to make the extra break-in effort. I am hearing 30mpg when cruising 70(+) mph. That's typically the diesel's territory. This is it, just right there...

Thank you guys for all this great feedback!


Sent from my iPhone using JeepGarage

Reply With Quote
Sponsored Links
Advertisement
 
  #50  
Old 10-26-2014, 02:44 PM
macfan's Avatar
Member
My Jeep: 2014 3.2L KL
 
Join Date: Oct 2013
Location: Fenton, Michigan USA
Posts: 608
Thanks: 130
Thanked 92 Times in 77 Posts
Rep Power: 5954
macfan has a reputation beyond reputemacfan has a reputation beyond reputemacfan has a reputation beyond reputemacfan has a reputation beyond reputemacfan has a reputation beyond reputemacfan has a reputation beyond reputemacfan has a reputation beyond reputemacfan has a reputation beyond reputemacfan has a reputation beyond reputemacfan has a reputation beyond reputemacfan has a reputation beyond repute
Re: 9 speed transmission?

Just found this on Chrysler's own blog site: Chrysler OnDemand. Thought you might find this interesting. It came from a review from a magazine that Chrysler copied and posted there. I posted it here as was posted there, non edited.


(The nine-speed automatic can be "controlled" through a +/- toggle you can bump the gear lever. "Controlled" is in quotes because you can't really up-and-downshift it it like other manu-matics, rather, you can force it to not exceed a certain gear. Don't waste you time mucking around with this; let the car do it's thing.)
Reply With Quote
  #51  
Old 12-08-2014, 10:36 AM
blk14altitude's Avatar
Member
My Jeep: 2015 3.6L WK2
 
Join Date: Aug 2014
Location: Brunswick, O-H...I-O
Posts: 201
Thanks: 16
Thanked 33 Times in 24 Posts
Rep Power: 1233
blk14altitude has a reputation beyond reputeblk14altitude has a reputation beyond reputeblk14altitude has a reputation beyond reputeblk14altitude has a reputation beyond reputeblk14altitude has a reputation beyond reputeblk14altitude has a reputation beyond reputeblk14altitude has a reputation beyond repute
Garage
Re: 9 speed transmission?

Finally went into 9th gear!!! Cruising at 73-75 mph and going down hill. YAY!!!!
Reply With Quote
  #52  
Old 12-08-2014, 08:53 PM
jim383's Avatar
Member
My Jeep: 2014 3.2L KL
 
Join Date: Mar 2013
Location: THOUSAND OAKS CA
Posts: 367
Thanks: 0
Thanked 57 Times in 46 Posts
Rep Power: 1765
jim383 is on a distinguished road
Re: 9 speed transmission?

Quote:
Originally Posted by blk14altitude View Post
Finally went into 9th gear!!! Cruising at 73-75 mph and going down hill. YAY!!!!
I finally got mine to go in 9th on flat ground but i had to go 82 mph lol.
__________________
2015 CHEROKEE LIMITED
Reply With Quote
  #53  
Old 12-09-2014, 12:51 AM
Darkhawk's Avatar
Member
My Jeep: 2014 3.2L
 
Join Date: Nov 2013
Location: Long Island, NY
Posts: 67
Thanks: 2
Thanked 0 Times in 0 Posts
Rep Power: 1219
Darkhawk is on a distinguished road
Garage
Re: 9 speed transmission?

Hmmm.... I have a hard enough time getting mine into 8th and staying there. Usually has to be somewhere between 65 and 75 and on flat, or downhill ground. Haven't been able to get into 9th yet regardless of the speed or ground. And I've been cruising downhill at up to 90mph and it stayed in 8th.
__________________
2014 Jeep Cherokee Trailhawk
Granite Metallic
Cold Weather Package
Technology Package
Comfort and Convenience Package
Black Interior
3.2L V-6, 9 Speed Transmission
Reply With Quote
  #54  
Old 12-09-2014, 09:30 PM
Max57's Avatar
Member
My Jeep: 2015 3.2L
 
Join Date: Nov 2014
Location: Central Virginia
Posts: 10
Thanks: 3
Thanked 1 Time in 1 Post
Rep Power: 799
Max57 is on a distinguished road
Post Re: 9 speed transmission?

My friend who has a 2014 TH was at our dealership yesterday for an oil change. He was talking to one of the lead techs about the TH when the topic of the 9 speed tranny came up. The tech mentioned that many of the transmission problems they've encountered have been found to due with owners who are continually using the manual mode to select gears. Many of them are supposedly trying to select a gear to make the engine have a low RPM to get the best mpg. This puts a strain on the transmission and causes failures. His suggestion was to leave it in auto and when using the manual mode, always select a gear for a higher rpm and not use that option long term. Let the automatic do it's job. Also, supposedly, a new revised owner's manual will be coming out specifically mentioning this issue.
__________________
~~~ Lost in the 50s ~~~
---------------------------------
~~ Rock-N-Roll 4 Ever ~~

2015 Limited / True Blue-Vesuvi / ADII / All options
Reply With Quote
  #55  
Old 12-10-2014, 12:33 AM
Darkhawk's Avatar
Member
My Jeep: 2014 3.2L
 
Join Date: Nov 2013
Location: Long Island, NY
Posts: 67
Thanks: 2
Thanked 0 Times in 0 Posts
Rep Power: 1219
Darkhawk is on a distinguished road
Garage
Re: 9 speed transmission?

I think if they were really smart, they would have just eliminated the manual mode if you weren't actually going to be able to use it to shift gears. The only time I ever put it in manual is just to make sure of what gear I'm in. I only pop the selector over for a second to see what gear I'm in, then switch it right back. I also think the 9 speed tranny is pointless since it will almost never be in 9th.
__________________
2014 Jeep Cherokee Trailhawk
Granite Metallic
Cold Weather Package
Technology Package
Comfort and Convenience Package
Black Interior
3.2L V-6, 9 Speed Transmission
Reply With Quote
  #56  
Old 12-10-2014, 05:41 AM
Max57's Avatar
Member
My Jeep: 2015 3.2L
 
Join Date: Nov 2014
Location: Central Virginia
Posts: 10
Thanks: 3
Thanked 1 Time in 1 Post
Rep Power: 799
Max57 is on a distinguished road
Re: 9 speed transmission?

I have to agree regarding the 9th gear being useless. I mean really, who's going to be traveling in excess of 80 mph? Not me! How-ever the manual mode is useful when towing or in very hilly terrain where you can limit the higher gears so as not to put undo strain on the transmission.
__________________
~~~ Lost in the 50s ~~~
---------------------------------
~~ Rock-N-Roll 4 Ever ~~

2015 Limited / True Blue-Vesuvi / ADII / All options
Reply With Quote
  #57  
Old 12-10-2014, 08:51 AM
jim383's Avatar
Member
My Jeep: 2014 3.2L KL
 
Join Date: Mar 2013
Location: THOUSAND OAKS CA
Posts: 367
Thanks: 0
Thanked 57 Times in 46 Posts
Rep Power: 1765
jim383 is on a distinguished road
Re: 9 speed transmission?

Quote:
Originally Posted by Max57 View Post
My friend who has a 2014 TH was at our dealership yesterday for an oil change. He was talking to one of the lead techs about the TH when the topic of the 9 speed tranny came up. The tech mentioned that many of the transmission problems they've encountered have been found to due with owners who are continually using the manual mode to select gears. Many of them are supposedly trying to select a gear to make the engine have a low RPM to get the best mpg. This puts a strain on the transmission and causes failures. His suggestion was to leave it in auto and when using the manual mode, always select a gear for a higher rpm and not use that option long term. Let the automatic do it's job. Also, supposedly, a new revised owner's manual will be coming out specifically mentioning this issue.
On this matter just use sports mode. I use sports mode when doing intown driving and auto mode on freeways. I did 2 test using both modes in combined intown and freeway with each getting a full tank of gas and the auto mode was 1.2 mpg better. I still use sports mode when doing intown driving and 89 octane.
__________________
2015 CHEROKEE LIMITED
Reply With Quote
The Following User Says Thank You to jim383 For This Useful Post:
  #58  
Old 12-10-2014, 09:26 AM
Desert Hiker's Avatar
Member
My Jeep: 2014 3.2L KL
 
Join Date: Nov 2013
Location: Arizona
Posts: 220
Thanks: 2
Thanked 24 Times in 22 Posts
Rep Power: 2186
Desert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond repute
Re: 9 speed transmission?

Quote:
Originally Posted by Max57 View Post
...................... due with owners who are continually using the manual mode to select gears. Many of them are supposedly trying to select a gear to make the engine have a low RPM to get the best mpg. This puts a strain on the transmission and causes failures. ..............
Don't get this. The manual position allows driver to see what gear the tranny has selected, and to set a limit on the upper gear. This can force a downshift (increasing RPMs), but doesn't force an upshift (to lower RPMs). How do they do that!?!?! So how is driver-forced engine lugging a real problem? Sounds like scapegoating - IMHO.

9th gear is not totally worthless here in the open west USofA, but it is nearly worthless.

Desert Hiker
__________________
Cherokee Trailhawk - 2014 :thumbsup:
> Deep Cherry Red Crystal Pearl (aka RED)
> 3.2L V6 24V VVT engine
> UConnect 8.4AN
> Comfort/Convenience Group
> Technology Group

Previous Outdoor Adventure Support Vehicles :wavey:
Liberty Sport 4x4, 2002
Wrangler Sahara, 1990
Reply With Quote
  #59  
Old 12-10-2014, 09:31 AM
Max57's Avatar
Member
My Jeep: 2015 3.2L
 
Join Date: Nov 2014
Location: Central Virginia
Posts: 10
Thanks: 3
Thanked 1 Time in 1 Post
Rep Power: 799
Max57 is on a distinguished road
Re: 9 speed transmission?

Quote:
Originally Posted by Desert Hiker View Post
Don't get this. The manual position allows driver to see what gear the tranny has selected, and to set a limit on the upper gear. This can force a downshift (increasing RPMs), but doesn't force an upshift (to lower RPMs). How do they do that!?!?! So how is driver-forced engine lugging a real problem? Sounds like scapegoating - IMHO.

Desert Hiker
Evidently, what some people are supposedly doing is putting the Cherokee in manual and then selecting a higher gear to reduce the engine RPM trying to get a higher MPG. By selecting a higher gear at a low speed, they're putting more stress on the transmission.
__________________
~~~ Lost in the 50s ~~~
---------------------------------
~~ Rock-N-Roll 4 Ever ~~

2015 Limited / True Blue-Vesuvi / ADII / All options
Reply With Quote
  #60  
Old 12-10-2014, 09:38 AM
Desert Hiker's Avatar
Member
My Jeep: 2014 3.2L KL
 
Join Date: Nov 2013
Location: Arizona
Posts: 220
Thanks: 2
Thanked 24 Times in 22 Posts
Rep Power: 2186
Desert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond reputeDesert Hiker has a reputation beyond repute
Re: 9 speed transmission?

Quote:
Originally Posted by Max57 View Post
Evidently, what some people are supposedly doing is putting the Cherokee in manual and then selecting a higher gear to reduce the engine RPM trying to get a higher MPG. By selecting a higher gear at a low speed, they're putting more stress on the transmission.
My understanding is that the Manual + does not force an upshift - it merely sets the upper limit permitting (not forcing) a higher gear. The transmission is still the decider and will automatically select a lower gear if appropriate. So again, my guess is scapegoating.

Desert Hiker
__________________
Cherokee Trailhawk - 2014 :thumbsup:
> Deep Cherry Red Crystal Pearl (aka RED)
> 3.2L V6 24V VVT engine
> UConnect 8.4AN
> Comfort/Convenience Group
> Technology Group

Previous Outdoor Adventure Support Vehicles :wavey:
Liberty Sport 4x4, 2002
Wrangler Sahara, 1990
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
5 Speed vs 8 Speed ? AussieJeep Export Grand Cherokee 2011+ 20 02-25-2014 07:10 PM
8 speed vs 9 speed transmissions CherokeeTy 2014+ Cherokee-KL 6 02-13-2014 04:36 PM
2014 v6 8-speed vs 2013 5-speed diskillians 2011+ Dodge Durango-WD 14 11-24-2013 09:55 AM
how to make the "6 speed" transmission in 2012 Hemi actually work as a 6 speed? mikoz Suspension/Driveline/Brakes/Wheels/Tires 8 05-29-2013 08:04 PM
5 speed vs 6 speed, which is faster/more responsive? Keirik Grand Cherokee - WK2 - 14 03-04-2013 10:28 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 02:12 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.