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Old 02-11-2017, 06:42 PM
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Using the Over Drive off switch

Have a 11 JKUS. My question is while highway driving by turning the Over drive off to keep it from shifting so much. Will this damage the Tranny or rear gearing. I am sure I still have the 3.21. It seems to drive better with it off. RPMs stay around 2600 to 3000.

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Old 02-11-2017, 06:53 PM   #2
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You will be fine. I did this for years and now my engine and transmission both have 263,000klm and both have never been touched other then regular maintenance... Running OD off is likely easier on the transmission then the constant up and downshifting..


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Old 02-11-2017, 07:13 PM
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Thanks I wasn't sure. It did seem to drive better especially on the Highway.
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Old 02-13-2017, 04:36 PM   #4
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Is this a thing for 3.6L JKs? I don't know that I have an O/D switch.

My transmission will allow me to manually limit it to a gear, but it essentially requires I take full manual control. On this one particular stretch of road I'd love to be able to limit it to a maximum of 3rd gear, but it still shift between 1st-3rd gear normally without any further input.
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Old 02-13-2017, 08:02 PM
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I have the 3.8 with a 3.21 gears. Running 33s with a 2.5 lift. On highway driving it is down shifting constantly. My OD off button is on the top left corner of the shifting console. Ran it on the highway the other day maybe 100 miles or so with OD off. Seemed to drive a lot smoother. Just making sure this would damage anything by doing this.
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Old 02-13-2017, 08:39 PM   #6
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Quote:
Originally Posted by jeffbarnett513 View Post
Is this a thing for 3.6L JKs? I don't know that I have an O/D switch.

My transmission will allow me to manually limit it to a gear, but it essentially requires I take full manual control. On this one particular stretch of road I'd love to be able to limit it to a maximum of 3rd gear, but it still shift between 1st-3rd gear normally without any further input.
Beginning in 2012 with the 3.6 and the "new" auto trans. that incorporates the auto stick feature, there's no O/D off button. The only way to bypass/deactivate O/D on these auto transmissions is to use the auto stick feature.
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Old 02-13-2017, 09:48 PM   #7
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It seems what the OP is running into is the same thing I learned early with my 3.8 auto JKU. If there is any strain( load) put on the Jeep while in overdrive it will kick out until the strain is decreased. Now the gear the Trans will down shift into depends on whether you are driving on the pedal or on cruise control. It with the cruise on the Trans will looses overdrive when the button is cycled. You can also achieve the same thing by shifting to the "2" on the selector. This is with cruise only in my experience. When being driven with the pedal the shifter moving to 2 shifts the Trans into 2 second gear. This can be confirmed by the engine rpm increase. It also seems turning the overdrive off without button while using accelerator shifts into a lower gear.

I can show this better than explaining it. Sosa apologize if it's confusing . Best way is to try different scenarios and get a fell form what works for you.
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Old 02-18-2017, 08:33 PM
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Thanks for the feed back. I just want to make sure that I will not damage anything by turning the OD of while highway driving.
Confused on the Procal tuner and if it will help with this. I know It will correct the speedo and fuel mileage being off.
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Old 02-18-2017, 09:49 PM   #9
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After getting our 2011 out of the body shop last week, I noticed my overdrive button appears to be stuck. I read some post on this being pretty common but I can't get it unstuck. Any suggestions? Can the OD button be rewired to a more normal switch that isn't prone to sticking?
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Old 03-04-2017, 03:26 PM   #10
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Finally got my overdrive switch working! I originally tried spraying window cleaner into the switch to clean it. Finally wound up trying a mixture of simple green and water (that I use washing dirt bikes) and working around the edge with a thin piece of metal. Actually it was a metal card that painters use to spray color onto to verify the shade of paint is correct. After several minutes, the button/switch started working. Made a short trip to town last night with the overdrive switched off and the JKU drove a million times better! (with 35's and 3.73 gears)
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Old 03-06-2017, 06:03 PM
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That is great Wandell, Mine drives a lot better with OD off especially on the Highway. I just hope I do not tear anything up while doing it that way. Until I can reqear.
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Old 03-06-2017, 07:22 PM   #12
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I guess I spoke too soon. Saturday night I was driving, with the "OD off" and the dash indicator light started flashing randomly. The next time I started the JKU, the overdrive off button no longer worked. So now I believe the switch has bit the dust and needs replacing. Anyone know how this switch is removed from a 2011. As you know the 2011 is an odd year. It received an updated interior of the new JK's, but still uses the 3.8/four speed automatic of the original 07. I know the round OD switch for the 07-10 JK's pops out the top, but how do you access the square 2011 OD off switch? Anyone know the part number for the switch because I can't find it anywhere.
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Old 04-30-2018, 04:52 PM   #13
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Originally Posted by Wandell View Post
I guess I spoke too soon. Saturday night I was driving, with the "OD off" and the dash indicator light started flashing randomly. The next time I started the JKU, the overdrive off button no longer worked. So now I believe the switch has bit the dust and needs replacing. Anyone know how this switch is removed from a 2011. As you know the 2011 is an odd year. It received an updated interior of the new JK's, but still uses the 3.8/four speed automatic of the original 07. I know the round OD switch for the 07-10 JK's pops out the top, but how do you access the square 2011 OD off switch? Anyone know the part number for the switch because I can't find it anywhere.
My 2011 OD switch seems stuck too. Any luck getting yours fixed/replaced?
Thanks
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Old 05-01-2018, 04:28 PM   #14
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Yeah, the dealership replaced mine. Apparently it's pretty common. I guess the lifetime warranty Jeep was offering back in 2011 wasn't such a bad deal.

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