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  #25  
Old 07-13-2016, 09:32 AM
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Re: Paddle Shifters (slowing down)

JTS', I'm a "coast to the light" driver too...and my original brakes are still great at 71K miles...

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  #26  
Old 07-16-2016, 09:39 AM
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Re: Paddle Shifters (slowing down)

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Originally Posted by Shots View Post
People engine brake on motorcycles all the time (usually because it sounds cool).
That's not why motorcycles do it (though some find the sound is a nice side effect).

Motorcycles have a rotary transmission and usually no gear indicator, meaning you have to cycle down through the gears to ensure your in the right one should you need to start off before coming to a full stop.

It prevents potentially downshifting too many gears, then locking the rear wheel when you release the clutch in too low a gear for the speed.

Motorcycles are also particularly vulnerable to traffic approaching from behind, so being in the right gear for the speed allows the best chance to maneuver out of the way if a vehicle is approaching too quickly to stop safely.

Downshifting to match the speed is actually taught in most riding safety course.


As far as the Jeep paddle shifters, I engine brake only in slippery conditions because I can carefully slow the Jeep down by ticking down through the gears and not even touch the brake except at the last moment. If you do it right, you can easily stop on ice that would otherwise upset even the lightest application of brakes due to the far difference in stopping power.

As someone who lives on a steep hill, the paddles are invaluable. In fact, I like them better for that use than my previous manual transmission since there's no need to remove power by depressing a clutch, which can cause torque to be over applied at each gear change.

For lights, I let the automatic tranny do its thing and gently slow down when I know a change is imminent and I can potentially keep rolling. No need to manually downshift.

The only other thing I use the paddles for is to lock the tranny into a particular gear to prevent unwanted excessive downshifts when at cruising speed.
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  #27  
Old 07-16-2016, 12:36 PM
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Re: Paddle Shifters (slowing down)

Recently did some driving through Colorado (e.g. Hwy 550 from Durango to Silverton, etc). The paddle shifters were invaluable; I kept my EcoDiesel in 3rd for most of the downhill stretches in order to avoid having to ride the brakes.

My transmission never got too hot, per EVIC. I chuckled when I saw my EGT/CAT temp drop below 100 °C. Also, I thought a bit of high RPM might do the diesel engine some good given the nasty things the EPA forces the engine to breathe. It's probably confirmation bias, but I think the engine may be achieving better fuel economy afterward. Despite all the repeated mountain traversals I still made it over 1100 km before refueling.
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  #28  
Old 07-16-2016, 12:53 PM
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Re: Paddle Shifters (slowing down)

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Originally Posted by NetworkTV View Post
That's not why motorcycles do it (though some find the sound is a nice side effect).....
Fair enough. Having bought my first MC in '03 (and riding atv's prior to that) I just kinda developed the habit of down shifting and don't give it much thought anymore. Valid point in it being more of a way to be in the proper gear if you need to go before stopping, though I think many find the sound a nice side effect. Regardless of WHY we downshift, and/or engine brake a MC, the point is that it's a very common practice (and taught as you noted). The transmissions handle it just fine, and I don't see anyone complaining about premature wear as a result. So there shouldn't be any reason you can't do the same thing with a car that is capable of allowing the driver to select the gear.
I guess my main point was that unless you're completely crazy about how/when you do it, you can downshift and/or engine brake your Jeep and not see any ill effects from it just like you can a motorcycle.
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  #29  
Old 07-16-2016, 02:36 PM
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Re: Paddle Shifters (slowing down)

Anti-lock paddle shifters will be the next safety upgrade.
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  #30  
Old 07-16-2016, 02:58 PM
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Re: Paddle Shifters (slowing down)

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Originally Posted by Governor View Post
Anti-lock paddle shifters will be the next safety upgrade.
Now that's amusing ! We all have our preferences, and initially when buying my 75th Laredo (Recon) I didn't necessarily see the need for "overkill" - 2 places where you could do the same thing - am I wrong in that ? There is the shifter to also up or down shift ! After my recent 1st-roadtrip of about 500 miles over 3.5 days of varied roads and speeds + 2 days in-town driving, getting overall 26.7 mpg I was HAPPY ! But, , I "accidentally" brushed the left paddle and also the right paddle - one at highway speed the other in town during turning !
They were both one of those "Oops moments," but the one at 60mph felt uncomfortably weird, or should I say a bit worrisome, as to, "what if" !? SO, I've turned the paddle shifters OFF via the "radio". IF I want or need to downshift, IF the Tranny isn't doing its uphill or downhill functions properly, then I would go to the More Natural Place (being an old skool manual guy), the center console Shifter !
Please no snide remarks about Implying (my) driving technique - we ALL have "our way" of that and we ALL know how useless it is to teach "old dogs" new tricks . . . ! ?
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  #31  
Old 07-16-2016, 08:36 PM
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Re: Paddle Shifters (slowing down)

I know what you mean. I've inadvertently slapped a paddle before, and also wondered about "what if". Though when I did it, I was going slow and bumped the + paddle so it didn't matter, but still made me think. I'm not going to test it on my Jeep, but I wonder if they have any sort of rev limiter or override type system to keep you from slapping it into a gear that is to low for the current speed.
I didn't bother turning mine off though, since I only did it the one time right after buying it. I learned pretty quick where they were and keep my paws away unless I'm trying to use them. Good idea though so you don't have to worry about it.
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  #32  
Old 07-17-2016, 12:31 AM
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Re: Paddle Shifters (slowing down)

I'm glad my 2011 doesn't have them. I think I would take a hacksaw to them if I did. There's too many gadgets already. First vehicle that ever talked to me when I accidentally hit the wrong button. I was reaching for some iron before I realized what it was. I keep expecting the jeep to creep into my bathroom one night and try to wipe my ass for me. It tries to do everything else except steer and that's in the pipeline. What happened to vinyl seats and rubber floor mats? I remember when I could hose out the interior of my truck with a water hose. Ahhh...those were the days when men were men and women were proud of it!
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  #33  
Old 07-17-2016, 01:32 AM
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Quote:
Originally Posted by Shots View Post
I wonder if they have any sort of rev limiter or override type system to keep you from slapping it into a gear that is to low for the current speed.
Don't fear the paddles. Trying to shift to a lower gear than current speed allows will result in an EVIC message to that effect, and no shift happens.

There is even hysteresis: e.g. you can't shift into 8th below 68 km/h, but once in 8th it can hold that down to 60 km/h before it automatically shifts to 7th. If you were to slow to a stop it would automatically sequentially downshift to 1st as appropriate.

Hell, as of the most recent flash that I had applied to my 2014 last year, there is no escaping the "Shift Not Allowed" message to exit manual shift mode. Simply hold down the + paddle while the message is displayed and it will eventually go back to regular automatic transmission.

I really like my paddle shifters. The unreliable, recalcitrant, recalled, recentering shifter of doom on the console is another story.
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  #34  
Old 07-17-2016, 09:27 AM
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Re: Paddle Shifters (slowing down)

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Originally Posted by Governor View Post
..... What happened to vinyl seats and rubber floor mats? I remember when I could hose out the interior of my truck with a water hose......
Um, yeah that's on a Wrangler and you can still hose them out. My sister-in-law got a new one not too long ago, and while her seats are cloth, the floors are rubber. There's no power function on the seats or windows and I don't recall seeing anything electronic below the radio. I'm pretty sure the floor still has a drain plug too. I don't know if she could have gotten vinyl seats or not, but you can still get a Wrangler that is pretty basic/simple. The Grand Cherokee is SUPPOSED TO BE the luxury model, with a bunch of gadgets and creature comforts. If you don't want all the "stuff" you should be buying base model Wranglers, or base model Cherokees, not a Grand Cherokee.

I happen to like all the "stuff", that's why I bought what I did. I don't use the paddles often, but I like them. Just like the ventilated seats and many other gadgets. I don't use them all the time, but I still like having them.
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  #35  
Old 07-17-2016, 09:38 AM
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Talking Re: Paddle Shifters (slowing down)

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Originally Posted by Shots View Post
Um, yeah that's on a Wrangler and you can still hose them out. My sister-in-law got a new one not too long ago, and while her seats are cloth, the floors are rubber. There's no power function on the seats or windows and I don't recall seeing anything electronic below the radio. I'm pretty sure the floor still has a drain plug too. I don't know if she could have gotten vinyl seats or not, but you can still get a Wrangler that is pretty basic/simple. The Grand Cherokee is SUPPOSED TO BE the luxury model, with a bunch of gadgets and creature comforts. If you don't want all the "stuff" you should be buying base model Wranglers, or base model Cherokees, not a Grand Cherokee.

I happen to like all the "stuff", that's why I bought what I did. I don't use the paddles often, but I like them. Just like the ventilated seats and many other gadgets. I don't use them all the time, but I still like having them.
When you're right you're right. Reflecting further, fond memories notwithstanding, that same truck didn't have a/c, the little heater it did have sucked, it got about 5 mpg, and darted all over the road like it had a mind of its own. I had a 69 and a 70 Blazer before I stepped up to an 89 Ramcharger with carpet and A/C. The good old days weren't so good at the time. LOL.
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  #36  
Old 07-17-2016, 04:40 PM
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Re: Paddle Shifters (slowing down)

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Originally Posted by Shots View Post
I know what you mean. I've inadvertently slapped a paddle before, and also wondered about "what if". Though when I did it, I was going slow and bumped the + paddle so it didn't matter, but still made me think. I'm not going to test it on my Jeep, but I wonder if they have any sort of rev limiter or override type system to keep you from slapping it into a gear that is to low for the current speed.
I didn't bother turning mine off though, since I only did it the one time right after buying it. I learned pretty quick where they were and keep my paws away unless I'm trying to use them. Good idea though so you don't have to worry about it.
Yea, but what about that "Unexpected Deviation," the sudden "Oh Crap" requiring a quick response turning of the wheel - and damn a 2 shift down or up that could cause you to get "involved" in some sort of Ugly "Happin-stance" !?
Yes, yes, I know I tend to over think just about everything - comes with the "attention to detail" syndrome I didn't inherit from the mother; but who ?
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