Diesel WK: Tranny Upshift Trick - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > WK Grand Cherokee & XK Commander Forum > Diesel WK: Tranny Upshift Trick

ANOTHER Rockridge4wd Creation!! Spare Tire Carrier Delete ROCKRIDGE4WD Introduces a NEW Jeep Wrangler JK *led* tail Engo winches available at www.rockridge4wd.com! Free shipp

Reply
Unread 09-11-2007, 03:42 PM   #1
boxcab
Member
 
boxcab's Avatar
2007 WK 
 
Join Date: Jul 2007
Location: Auburn, Wash.
Posts: 142
Diesel WK: Tranny Upshift Trick

Maybe this is in the manual, but I'm headed for the sack so I'm not looking it up.

It seems to me that at certain speeds, 25 mph and 35 mph, common around town, the CRD is in a lower gear than is needed. Engine speed is about 1600 rpm. But I discovered today that pushing the shifter to the right at these speeds up-shifts the transmission to the higher gear, dropping engine speed to around 1200 rpm. Still plenty of response, just more growl. My ScanGauge II shows a slight improvement in economy, too.

Food for thought...

__________________
Doug

2007 WK CRD
boxcab is offline   Reply With Quote Quick reply to this message
Unread 09-11-2007, 05:19 PM   #2
flyrx
Registered User
2007 WK 
 
Join Date: May 2007
Location: Phoenix, AZ
Posts: 114
I can confirm that, I've been experimenting with that recently myself. During most driving, the auto does a good job, and I only used the autostick to downshift for engine braking. I recently discovered that in the above mentioned speed range (or even as low as 10-15 mph), using the upshift function also seems effective at lowering the RPM.
flyrx is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.