Cylinder deactivation?

[Ramvette]

So after reading my manual and looking over all of my dash indicators I can't see where I have cylinder deactivation on my 2019 Limited Ram. No eco mode or V4 indicator. What is the best way to determine if my truck is equipped with that feature? I have the 5.7 hemi. Thx!

 

[John813]

You have it standard. The option to see when the truck goes into eco-mode, green little light in dash, is in the Uconnect settings page. I believe under the Display page.

From factory the setting to show when the truck activates the MDS is off.

 

[Ramvette]

Thanks.....yes it looks like the engine is standard with MDS which is Ram's cylinder deactivation system.

 

[Jus Cruisin]

It'll take some miles before it starts popping up I had close to 1,000 miles on my truck(I was doing 1200 straight through) before I noticed it. I have about 2100 on it now and it's popping up frequently.

 

[OCDTech]

So after reading my manual and looking over all of my dash indicators I can't see where I have cylinder deactivation on my 2019 Limited Ram. No eco mode or V4 indicator. What is the best way to determine if my truck is equipped with that feature? I have the 5.7 hemi. Thx!

Flat and level for a while drive 49mph and you will probably feel it vibrate some. Not so much when you go faster. Unless they have improved the system some.

 

[Jus Cruisin]

Flat and level for a while drive 49mph and you will probably feel it vibrate some. Not so much when you go faster. Unless they have improved the system some.

If I didn't have my "eco" light activated I wouldn't have a clue when it is active. No vibration at all. I do have eTorque which may make it unnoticeable

 

[OCDTech]

If I didn't have my "eco" light activated I wouldn't have a clue when it is active. No vibration at all. I do have eTorque which may make it unnoticeable

I did read recently that the E Torque is supposed to dampen shifts in the transmission and probably the MDS too. You are lucky on that, the vibrating is a little annoying but i'm used to it and don't drive 50 much anyway.

 

[Ramvette]

John813 was correct......had to enable the indicator in the display under uconnect. Displays now and it is totally seamless in that I cannot tell by feel or performance when it engages / disengages. Still learning this truck but the more I drive the more I like!

 

[John813]

John813 was correct......had to enable the indicator in the display under uconnect. Displays now and it is totally seamless in that I cannot tell by feel or performance when it engages / disengages. Still learning this truck but the more I drive the more I like!

Yea, Ram has done a good job on the transition from 8 to 4 and back. Wifes 15 R/T would shake at 50mph when it engaged/disengaged.

It's an awesome truck for sure

 

[ksn240]

I can tell the difference if I'm looking for it. They did a pretty good job for the most part. Before I did my exhaust I could hardly tell at all, but now that I did a muffler swap it is much more noticeable.

 

[BigRed4x4]

I can tell the difference if I'm looking for it. They did a pretty good job for the most part. Before I did my exhaust I could hardly tell at all, but now that I did a muffler swap it is much more noticeable.

Is the sound as bad with the new muffler as it is with the 4th gen? I bought a tuner with the main reason to shut off the eco mode after putting on the new muffler in my truck.

 

[ksn240]

Is the sound as bad with the new muffler as it is with the 4th gen? I bought a tuner with the main reason to shut off the eco mode after putting on the new muffler in my truck.

I notice it more with my 2019 than I did with my 2013. The exhaust systems are completely different.

No need to buy a tuner though, if you use the gear limiter and set it to 8 it cuts the mds off.

 

[fljab]

Maybe Ram has improved it on how it feels; on my '17, it's really annoying. I have a long 35 mph road I travel going into/out of my neighborhood where I notice it the most. I commonly hit the gear selector down one, then back up, and that kicks it out of MDS.

 

[joeagri]

Compared to my 2012 Ram the MDS in my 2019 Laramie is much better and less noticeable. Does anyone notice when coning to a stop you can feel the transmission down shifting and when you come to a complete stop and it shifts into 1st gear it's an abrupt shift? Is this normal? I have 3300 miles on the truck.

 

[Rowdy Ram]

It will sound like crap...I keep mine off as I get maybe 1 more mile to the gallon

 

[Coramie]

Compared to my 2012 Ram the MDS in my 2019 Laramie is much better and less noticeable. Does anyone notice when coning to a stop you can feel the transmission down shifting and when you come to a complete stop and it shifts into 1st gear it's an abrupt shift? Is this normal? I have 3300 miles on the truck.

My ‘18 does the same thing. I can’t figure out if it’s the transmission down shifting or the torque converter bc I can feel it clunk slightly every so often when I take off from a dead stop too. Seems to be pretty common across multiple gens.

 

[Fitz-0518]

We run our 2500 6.4 66RFE with gear setting at 6. Trans shifts up and own smoothly is responsive with no thumps.

 

[joeagri]

Thanks for the replies. I also get a clunk from a dead stop sometimes. My problem is I don't understand why it doesn't do it all the time, just once in a while. I think I'll have checked out at the dealer.

 

[Tach_tech]

Eco mode doesn’t mean the engine is in 4cyl mode. There is no visual que for that. The eco light just means you’re driving in an eco fashion.

 

[SJ345]

I’ve never seen the eco light on mine