My lifter collapsed at 96k in my 2012 ram. Just had all replaced and camshaft. I had them disable the MDS. She's a full time 8 now like mother nature intended.
I have a 2021 Ram and I was very unhappy with it and until I watched this video after I deactivated the MDS it like driving a brand new truck this video was a big help thank you so much I was ready to get rid of it.
I prefer using the Auto stick to put mine in 6th to deactivate it. The Tow mode seemed to rev the engine when I let off. I think it's designed to use the gears to slow down the vehicle. Helpful if a trailer wants to push you.
Man you're smart on every time I love watching your shows man I've learned so much from you keep up the good work I have a 2017 so this came in handy with my AC and muffler delete when it kicked in the four cylinders it sound like I had a hopped up on crack Subaru and I hated it
I work on aircraft and I wonder what damage overtime must does to the cylinders as its turns on and off and the cylinders run cold. Can't possibly be good for longevity of the motor
Same thing in Honda odysseys will cause the piston rings to align and oil to seep into the cylinders. Keeps everything lubed up, but that oil burns when it fires again. Pretty heavy oil consumption. About 1 qt every 1000 mi or more.
THANK YOU SO MUCH FOR YOUR VIDEO. MY QUESTION IS IF IT WORKS THE SAME WAY IN THE DODGE DURANGO OF 2005. PUT IN "D" and activate the tow haul. Thank you very much greetings from PERU.
Completely agree . I had an older 03 hemi single cab short bed 2x4 an Ioved that truck . Went to the newer 2012 hemi with the mds an what an awful truck . So many electronic problems . Mds sounded horrible with an exhaust on it . Cam lifter failure . Traded that in for 2010 6.1 challenger 6spd that now has a 426 Arrington stroker motor , comp an longtubes an my god that is a hemi
Pulsar. It hooks right into your ECU. If you get anything that plugs into your OBDII, you have to send your ECU to the factory (Edge, Diablo, etc) to have it unlocked. Pulsar goes through it the way it is, and all 4 levels have an MDS OFF option.
does anybody know if this will mess up the transmission? I saw a video and in the description the guy said after he recorded the video, this method "screwed his transmission" but that was on a 6.2l 2500, i have a 2017 1500 sport, just want to make sure.
Yeah I'm kinda confused about this video because if he is in a V8 then it did exactly what he said it wouldn't do later on in the video - deactivated it.
Tow/haul removes the highest gearing and keeps it from shifting into that gearing. The MDS disable just disables the MDS from coming on with the highest gearing option still allowed ... until you turn truck off and restart it. Then you must disable it again.Unless you have a tuner that disables it.
Have a question for you I have a 2007 Dodge Ram with a 5.7 hemi in it I'm having problems with my transfer case it just went into basically neutral cuz I can't shift it from four load of four high from four high to 804 or in the two wheel it just will not move now what do you what do you think I should do
Is this good or bad l, for the engine, over long period of time? I have a 2020 ram 1500 with low miles, so I want to make sure I take care of the truck through out the time I have it.
Great video, you guys' videos are always straight to the point and informative use the many times to fix family vehicles. To get to the point I have a 2022 Ram power wagon with the ZF 8 speed, now you did go through the process of how to shut MDS off with my type of shifter, when I push the up and down buttons on the steering wheel and put it in 8th gear on the dash as the maximum allowable gear, you're saying that will deactivate the MDS system until I turn that back to drive, even on the 6.4 l Hemi? I'm guessing that as long as it's the ZF 8 speed it will work?
I have the 6 speed hemi. 2013. Do I have to be driving to shut the mds off or put the truck in drive do the negative and positive up to Number 6? Thanks so much.
Hello how's your well I have a 2013 ram 1500 SLT 5.7 hemi the dealership is telling me that my motor is gone and I need to get a new one but like I told the dealership my transmission was the problem it was not shifting like it's supposed to I need help ASAP
+carrie richardson We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
How can i turn off mds for my 2023 ram laramie 1500 this doesnt work for it and tow mode isnt an option the down shitfing sounds terrible with a flow master outlaw muffler?.
+Easy Freazy We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
Only Ram 1500 with Hemi has MDS.The Rams HD 2500,3500 all have non MDS cams/Non MDS lifters without MDS solenoids. They have Blank plugs in place where the MDS solenoids go. I guess a crew cab 4wd Ram 1500 was just to small to keep MDS off it because people rushing out to get these trucks because of the such awesome fuel mileage they wont get even with MDS .....
I totally rebuilt the engine in an 06 Dodge Magnum put a non MDS lifters and cam in it and left the solenoids it runs great if I use manual mode but if I leave it it cuts out the injection and the fire to four cylinders I just unplugged it is there a way I can just completely go around it because my check engine light is on I looked at the Diablo tuners 400 and some dollars I would just like to get with someone and turn off my MDS
So MDS OFF is running on all 8? With gas approaching $4 I’d like run most fuel efficient. No towing here. Don’t you want trans in its highest gear to save fuel?
thankjs for the info have a tuner but i don`t delete mds on my 2013 ram not since gas got rediculous it has a 80,000 mile 2014 replacement motor i have flowmaster 40 series offroad edition when mds come on my truck sound like it has a jake brake (retarder)it turns off instantly when i push the pedal no delay i also have a throttle response enhancer makes jump a lil better off the line also it dont give any more power or torque but it sure makes it funner ton drive and only cost $85 same damn thing as roar pedal color and price is the only difference
You had it rotate really? You do know your lifters are inserted into a holder which prevents that from even possible. The lifters top has 2 flattened sides on top so they can not turn at all once the go into the lifter holders and then bolted down .No way to even push the lifter into holder unless the roller is orientated properly to roll on cam lobes. Im betting your roller just locked up and started to chew the cam and did not rotate, then it got deep enough into the cam that both sides of the lifter legs that the roller pin goes through began to help chew into the cam also and causes the lobe to look like its a U shape chewed out of the lobe/lobes (usually happens to lobes beside each other from debris locking up that roller from the real lifter failure. This is normally what it looks like on every failed lifter/cam I have done. I'm guessing you ignored the tap noise and just kept driving it as if it was just a normal hemi tick. Most are failed lifter on a non MDS cylinder. Only 4 cylinders have MDS lifters.Cyl 5 is most common failed lifter I have come across and it is a non MDS cylinder. Not the only place they fail now but most common one. Replace the MDS solenoids (if your not deleting them) because they will be packed with metal sludge.Ya break them most times removing anyhow unless ya blow them out. Easier to the just screw them and use hammer claw to pop them out.Can use compressed air but when your in a bay with other vehicles beside you dont want it to launch and dent paint or spray nasty oil out all over everywhere.Nice easy and no mess with the hammer claw.
I love older trucks for reasons One reason They are perfect. I want all the power I simply put my foot down. Even half throttle that old 5.7 would go up a hill up to 45MPH. Can cruise just fine also
Would driving with MDS deactivated help with the lifter lubrication problems? I have 104k on my 2016 and have been turning off Everytime I drive with the method demonstrated! I don’t notably have a tick! So just curious
No, we’ve actually figured out that your lifters get robbed of oil with MDS turned off, unless you have the solenoids replaced with plugs. Makes sense. I drive around constantly in manual mode, and my lifter just exploded. Currently rebuilding.
Not every lifter. I believe it’s only the Non MDS lifters that get robbed of oil which is stupid. When your engine is working the hardest, the MDS solenoid slows down the flow of oil going to the non MDS lifters.
@@BWADaniel - Trying to understand... Best scenario for motor lubrication is to remove the MDS system, plug the solenoid holes, replace MDS lifters with regular lifters, get a MDS delete tune? Turning it off electronically, like this video or a (MDS delete tune) is just as bad as leaving it activated?
MDS has caused me a few unnecessary problems. It would have helped if the manufacturer had added a proper "MDS on/off" switch feature to give the driver the option to disable the MDS. Tow/Haul removes the use of overdrive on 2005 HEMI's. But I've learnt to live with it now after 18 years...
Yeah, I've been manually turning off the MDS because of a bad rumbling from the engine if it's on when switching from 4 to 8 cylinders. But now I've read that with the MDS off, oil lubrication to certain cylinders is diminished and can cause lifter problems. I'd like to know if this is a problem or not because I don't want to ruin the engine, yet it runs crappy with the MDS on. I had my truck checked out three times, two of whuch were at the dealership and they felt and heard what I was talking about and the answer I received was that it was just the characteristic of the truck. They also stated that on earlier trucks there was a computer update that fixed the rough transition, but nothing for my truck. Not acceptable, because the truck runs crappy with it on, but if turning it off might ruin the engine, then what the heck? Does anyone else have information as to the engine getting damaged if the MDS is turned off?
MDS is useless and creates problems. I tuned my 06 with a superchips flashpaq. Disabled MDS entirely. Runs a lot smoother and didn't change the MPG. Over 2 years, no problems.
So people buy a huge truck either 2 door ,4 door , or crew cab with one of the largest most powerful engines so you can have great fuel mileage and not POWER huh? You rushed out to buy these trucks to get that 50mpg and not to pull something huh. Is that like buying a ford focus,neon,civic pouring in money to try to make a speed demon instead of just buying high powered sport car? Humans make no sense at all EVER...
I have a 2011 57 hemi Big Horn, and when the MDS is activated, I can hear some sort of ticking like someone’s got a card on a bicycle wheel and it’s kind of a annoying but when I put it into manual, I don’t hear that anymore, so I guess my question is is it harmful to drive in manual all the time except for when you’re on the freeway?
I have a 2020 Ram 1500 classic with the 5.7 and you don’t notice MDS at all, I guess in older models it’s more noticeable. Getting close to 25 mpg highway, no issues.
I have a 2021 Grand Cherokee L and it runs horribly at 15k RPMS at low speeds. Vibration in steering wheel and gas peddle. Looking to add tuner to turn off MDS. What is the best tuner to buy?
+Jesus is Alive for you We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
