Jeep Garage  - Jeep Forum

Jeep Garage - Jeep Forum (http://www.jeepgarage.org/forums.php)
-   Suspension/Driveline/Brakes/Wheels/Tires (http://www.jeepgarage.org/f109/)
-   -   ERS question (http://www.jeepgarage.org/f109/ers-question-25049.html)

Ken Jacobs 06-28-2011 06:58 PM

ERS question
 
Is there a difference in using 5 in ERS versus D on a hemi?

berk483 06-28-2011 08:53 PM

Could be wrong but I think it locks out going into ECO mode and MDS. Maybe someone else knows for sure.

77rednecktruck 06-28-2011 09:03 PM

Re: ERS question
 
Quote:

Originally Posted by berk483 (Post 439165)
Could be wrong but I think it locks out going into ECO mode and MDS. Maybe someone else knows for sure.

x2

I notice nothing other than the "ECO" light not coming on. Everything else seems the same.

1200RT-P 06-28-2011 11:07 PM

Re: ERS question
 
excuse the ignorance, but ERS?

berk483 06-29-2011 06:49 AM

Quote:

Originally Posted by 1200RT-P (Post 439259)
excuse the ignorance, but ERS?

He is referring to Electronic Range Selection...or moving the shifter to the left to go from D to 5 or any other gear.

1200RT-P 06-29-2011 10:26 AM

Re: ERS question
 
ah - thanks. thats what i figured, but hadn't heard that acronym before.

berk483 06-29-2011 10:49 AM

Ha... not gonna lie, I actually had to look it up. I just assumed he was referring to the shifter.

1200RT-P 06-29-2011 10:52 AM

Re: ERS question
 
I've found the manual control over the Jeep transmission so inadequate its not even worth using. In other 'tiptronic' cars i've driven, user input trumps the car's almost to the point of bogging down. The jeep seems to do whatever it wants - almost like taking a "suggestion" from the driver. Sometimes, on long, straight roads (travel of about 40mph), I would shift into the highest gear in a m/t car. The jeep seems to want to stay in 4, even if i click the lever over for 5. Oh well.

Andrew Klossner 06-29-2011 11:27 AM

Re: ERS question
 
From page 348 of the manual:

"ERS 5 (Overdrive) is the same as the normal 4th gear."

In 'D', the transmission will use the normal 5th gear. In '5', it won't. Yeah, that's a little counter-intuitive.

moosehead 06-29-2011 11:38 AM

Re: ERS question
 
While the WK2 manual shift feature isn't as functional as Triptronic as 1200RP-T states, it does limit the max gear range and is highly useful for downshifting. We use it all the time while descending in the mountains and when entering turns for both spirited and normal driving.

It also will disengage MDS when you drop out of D into 5.

webspoke 06-29-2011 03:25 PM

Re: ERS question
 
Tow haul mode actually has good shifting strategy for winding roads, uphill/downhills etc. as it holds each gear longer, and downshifts quickly under braking to get you in a good gear for pulling off the corner.

mjw930 06-29-2011 09:43 PM

Re: ERS question
 
Quote:

Originally Posted by webspoke (Post 439545)
Tow haul mode actually has good shifting strategy for winding roads, uphill/downhills etc. as it holds each gear longer, and downshifts quickly under braking to get you in a good gear for pulling off the corner.

I agree, tow/haul mode, when used with ERS made our vacation trip (2500 miles pulling 5000 lbs) a lot nicer than leaving it in D. Being able to keep the vehicle in the meet of the powerband made going through some of the 4% and 5% grades a piece of cake AND kept the trans temps down as well.

One thing to remember, this isn't a "tiptronic" or auto/manual. It's a multispeed automatic where you can tell the trans what the HIGHEST gear you want it to select is. It is not intended to be used to select the specific gear you want.


All times are GMT -5. The time now is 11:51 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