Disabling MDS - Greta Thunberg is tracking me now

[Sandevino]

After reading about devices, tunes and whatnot about how to disable MDS, I stumbled upon the trick of manually setting 8th gear as the max gear - genius.

I set 8th as max gear on a run this morning and whoa... what a difference. Having all 8 cylinders on tap and not having to put up with the MDS was amazing. ZERO lag when taking off from a light, no weed whacker sound or jittering when cruising. Mmmmm....

Now I'm on the lookout for Greta...

 

[RandomRam]

How dare you!!

I don’t mind MDS for most of my driving. On the highway it’s not even noticeable other than it does help with fuel mileage. In the city or cruising in the forest it’s annoying. There must be something different with the system in the 6.4 as it’s a lot more noticeable than the 5.7 in the Charger I drive daily. Or maybe it’s just the Ram is so much quieter and smoother than the Charger.

 

[farmallboy]

Politics aside. I just dislike how easy it is to "dog" the truck. I love driving this thing but you can't cruise with mds on. Otherwise you're doing 30 in 7th gear with it just grunting.

Happiest I've been is dragging 8k around. Mds off. Tow haul on. I like getting the 2.5 mpg more but I do force this truck to downshift just so it doesn't sound so much like it's struggling.


Sent from my iPhone using Tapatalk Pro

 

[MADDOG]

So that's been a solution for many years with many vehicles. I've never experienced any signficant fuel mileage improvements with MDS On vs. MDF Off.

Is your solution Genius? Maybe not. Effective? Yup.

Don't worry about Greta...her 15 minutes of fame and relevancy passed a long time ago.

 

[Sandevino]

Not my solution... I just found it and thought it was genius as I was set to spend $200...

 

[Travelin Ram]

When I read some of the posts on this topic it makes me wonder of there are different PCM calibrations for the 6.4 in use, or perhaps I’m just lucky. I don’t experience any of the negative aspects of MDS that are frequently reported, and I’m VERY particular about performance and NVH issues. If not for the indications in the dash, I couldn’t say whether it’s active or not.

I have considered disabling the OBD connector if I ever take it in for warranty repairs (assuming it’s not a repair that required use of it of course). I’ve had perfectly running vehicles degraded by firmware upgrades, and there’s no reversal process; or at least none they’ll admit to.

 

[Sandevino]

I’ve got no issues with the MDS but wanted to experience it without it enabled.

 

[mtofell]

Yeah, my 2014 is the same way... just cap it at 6th gear (that's all I have!) and no more MDS.

Don't worry about Greta...her 15 minutes of fame and relevancy passed a long time ago.

Don't count on it.... just this week it was in the news that they put her on some Covid-19 panel or something (not sure what qualified her for that?). Also, I was just FORCED to suffer through her "famous" speech as my 6th grader was working through the Climate Change section of her science class. The education system props her up like some hero! How Dare You suggest she's going away

 

[Rogues Gambit]

Don't count on it.... just this week it was in the news that they put her on some Covid-19 panel or something (not sure what qualified her for that?). Also, I was just FORCED to suffer through her "famous" speech as my 6th grader was working through the Climate Change section of her science class. The education system props her up like some hero! How Dare You suggest she's going away

She's in 6th grade? I thought she was a midget 20something yo crisis actor who they portray as a teen, learn new **** every day.

Besides that though, they're just trying to revive her 15 minutes, and of course

 

[mtofell]

She's in 6th grade? I thought she was a midget 20something yo crisis actor who they portray as a teen, learn new **** every day.

No... my daughter is in 6th grade. I think Gretta is a teen-ish something.

It's funny, at the start of this section of science the teacher sends out a huge disclaimer stating that she has no control over the subject matter. Basically, don't complain to me type of thing. I'm sure that is the result of catching major hell in the past. Although in my ultra-liberal state of Oregon the curriculum is over the top. It's going to take all I have to get my kids "un-programmed" after suffering through all the BS.

 

[MADDOG]

The education system props her up like some hero! How Dare You suggest she's going away

We can only both of those wretched conditions are corrected.

 

[unxpctd]

I turn the MDS off all the time when in town on my 2017 Rebel. Couple clicks and it's done. When I'm on the highway with the cruise on I usually keep it on.

 

[RBinNC]

I frickin HATE MDS. I don't know if it's worse on my configuration or what. It's the biggest thing I dislike on my truck. 2019 crew cab long bed 4x4 2500 6.4. At 1900 rpm under a light load it vibrates annoyingly.

 

[RedneckHippy]

I frickin HATE MDS. I don't know if it's worse on my configuration or what. It's the biggest thing I dislike on my truck. 2019 crew cab long bed 4x4 2500 6.4. At 1900 rpm under a light load it vibrates annoyingly.

I’m with you there, driving around town when light on the peddle it just stumbles all over itself.

 

[tones2SS]

I LOVE IT!!!
That's awesome.

 

[Rlaman]

Truly genius, Sand. I will use it.

 

[tones2SS]

I HATE the MDS as well.
EVERY.SINGLE.TIME. I get in my truck, I shut it off.

 

[DeckArtist]

After reading about devices, tunes and whatnot about how to disable MDS, I stumbled upon the trick of manually setting 8th gear as the max gear - genius.

I set 8th as max gear on a run this morning and whoa... what a difference. Having all 8 cylinders on tap and not having to put up with the MDS was amazing. ZERO lag when taking off from a light, no weed whacker sound or jittering when cruising. Mmmmm....

Now I'm on the lookout for Greta...

View attachment 207476

greta or no I select my gears every single time I am in Drive. I love the eight speed but I hate four cylinders. I will never run my truck on just the four. All I can think of is the Cadillac 864 debacle. I know times have changed and I know the technology is better but I see uneven wear as an issue and just don’t like the idea. I know everything still rotates and I know everything still good oil but it doesn’t get the spark or the firing. It just doesn’t make any sense to me.

 

[Mark Wolverton]

I turn the MDS off all the time when in town on my 2017 Rebel. Couple clicks and it's done. When I'm on the highway with the cruise on I usually keep it on.

And how do you turn it off again?

 

[unxpctd]

And how do you turn it off again?

Just click the gear selector (arrow) to the right when you're in top gear.

I find that if I'm in town...in say 4th gear...and I click left to engage gear picking...then right/right/right/right to get it to stay (or top out) in 8th (top gear) occasionally I click too fast and after it hits 8, the next right click...it goes OFF. Then I have to reclick left and right/right/right/right again.

Hope that makes sense. Try it out!