How do you turn off the MDS on a Dodge Ram?

How to Turn Off MDS on a Dodge Ram
To turn off the Multi-Displacement System (MDS) on a Dodge Ram, you have a few options:
1. Using a Tuner: One option is to use a tuner to turn off the MDS. Some tuners, like the Diablo tuner, can disable the MDS system. However, it’s important to note that for newer models, such as those from 2015 onwards, the Diablo tuner may require an unlocked PCM to work.
2. UConnect System Settings: On some Dodge Ram models, you can turn off or on the MDS through the UConnect system settings. This option allows you to control the MDS without the need for additional hardware or modifications.
3. Transmission in Auto-Stick Mode: Another temporary method to disable the MDS is by putting the transmission in auto-stick mode. When the transmission is in auto-stick mode, the MDS is deactivated. However, this method only provides temporary disablement of the MDS.
4. Upgrading to a Performance Camshaft: If you want to permanently disable the MDS and increase your Ram’s performance, you can consider upgrading to a performance camshaft. This modification will require more extensive work and is typically done by experienced mechanics or performance shops.
It’s important to note that disabling the MDS may have an impact on fuel economy and performance. Some users report better fuel mileage without the MDS, while others prefer the improved fuel efficiency it provides. Consider your specific needs and preferences before making any modifications to your vehicle.
Please keep in mind that these methods may vary depending on the specific model and year of your Dodge Ram. It’s always recommended to consult the owner’s manual or reach out to a certified mechanic for guidance tailored to your vehicle.
I hope this information helps! Let me know if you have any other questions.

What is MDS on Dodge Ram?

MDS is Chrysler’s take on Variable Displacement technology which alters an MDS-equipped engine’s output by deactivating a portion of that vehicle’s cylinders to improve fuel economy while reducing power demands during low impact use.

Can Hemi MDS be turned off?

Read. Now that we’ve read the file we’re going to go ahead and go to the settings to turn off the MDS. We’re going to go over to fuel. We’re going to go to lean fuel saving.

What does turning MDS off do?

The MDS will be in a truck like a Ram with a Hemi for better fuel economy. Disabling the MDS can give you full engine power (maximum horsepower and torque) if you need it. If you want to permanently disable the MDS, buy a tuner. Otherwise it will take a few seconds to temporarily disable it.

How do I delete MDS on Hemi?

To delete your MDS, you MUST:

1. Upgrade to a non-MDS camshaft.
2. Install non-MDS lifters.
3. Install MDS block off plugs.
4. Turn off the MDS system using a computer programmer or custom tune.

What is an MDS solenoid on a Dodge Ram?

MDS or multiple displacement system was put on vehicles to increase fuel economy. It enables the V-8 engine to run on four cylinders when cruising with light loads.

Do all Hemi engines have MDS?

The purpose of this feature is to enhance the fuel economy available to the HEMI engines introduced by Chrysler. ALL Mopar models 2005+ are factory equipped with the MDS mode UNLESS you have a Challenger with a factory MANUAL transmission OR you have custom tuned your vehicle to eliminate the factory MDS feature.

What does MDS mean on a 5.7 Hemi?

Multi-Displacement System
Chrysler’s Multi-Displacement System (MDS) is an automobile engine variable displacement technology. It debuted in 2005 on the 5.7 L modern Hemi V8.

How does MDS work on a 5.7 Hemi?

During MDS activation, cylinders 1, 4, 6, and 7 are shut down in order, with one cylinder being deactivated every 180 degrees of crankshaft rotation. Part of the cleverness of MDS is that a change to 4-cylinder mode—called “Eco” mode as displayed on the instrument cluster—happens without any apparent loss of power.

Does MDS cause lifter failure?

There have also been many MDS lifter-related failures. The actual roller bearing inside the MDS lifter can seize up and fail, chewing its way through the lobe on the camshaft. Instead of spinning as it should, it stays stationary and eats its way through the camshaft, putting metal throughout your engine.

What cylinders deactivate on a 5.7 Hemi?

During MDS activation, cylinders 1, 4, 6, and 7 are shut down in order, with one cylinder being deactivated every 180 degrees of crankshaft rotation. Part of the cleverness of MDS is that a change to 4-cylinder mode—called “Eco” mode as displayed on the instrument cluster—happens without any apparent loss of power.