1. PCM and MDS

    2019 Dodge Ram Forum - DT
    Hey everyone, I bought a new Ram 1500 last month, September, and was driving it for about a month when I started having issues. At first it would randomly shake noticeably at idle and then immediately ride rough after. This would only happen intermittently. Then the check engine light came on...
  2. P3450 code still thrown after MDS solenoids replaced

    2012 Dodge Ram Forum
    Hi all, Two weeks ago my check engine light came on while driving home from work on the highway. I also began to hear what I can best describe as an intermittent and random rattling noise coming from the engine compartment when I accelerated past 2000RPM. I used my scanner and found it had...
  3. Question about disabling MDS

    Hey, I have a 2007 Dodge Durango that will not pass emissions because of a CEL and code P3497. According to the code, there is an issue with the MDS system. The dealer wants an astronomical price to repair it and I am not sure it is worth it for an 11 year old truck with over 220,000 miles...
  4. 6.4 Hemi Vibration/Shudder NOT MDS

    2017 Dodge Ram Forum
    Hello all, looking for a little advice if anyone has any suggestions. I recently purchased a 2017 Ram 2500 tradesman with a 6.4L. Its got a shudder of some sort, simply feels like it has a miss. It does it when towing my RV and the tow/haul is engaged so the MDS is turned off. It does it...
  5. MDS, which is it?

    5.7L (345 cu in) HEMI V8 Specific Topics
    So I have been trying to figure out which cylinders are the ones that deactivate in the Hemi. It seems like it would be easy to find out, but hasn't been-even in Allpar and Engine Builder's thorough writeups they don't say it. My Haynes manual doesn't say either; I assume it would be the same...
  6. Mds/nonmds cam

    5.7L (345 cu in) HEMI V8 Specific Topics
    Hello, So I am doing the MDS delete on my truck because I have suffered the cam/lifter failure. Is it true that I have to use a non mds cam or can I use the OEM mds cam with non mds lifters and use a tuner to turn off mds on the PCM?
  7. HEMI MDS question?

    hello I have a 2011 ram 1500 SLT crew cab with the 5.7L hemi around 106,000kms. I have the MDS option, and it kicks In quite frequently in the city once I hit a regular speed or accelerate really slowly. Anyways, I was getting sick of the stock exhaust, so I decided to go with a "cat back", and...
  8. MDS Failure/ Engine Rebuild

    Hello! So! To start I have 2009 with hemi . had a Lifter seize and grind down my cam shaft on cylinder 5. So I replaced all lifters and cam shaft with oem parts. I messed up the timing of the cam and crank putting it back together. i put it back together exactly the way it came off. Got...
  9. TSB 18-050-14 MDS/VIBRATION *update*

    2013 Dodge Ram Forum
    This software update definitely helped mine out. I had a 2011 Ram with the same motor and set up as my 2013 and my 2011 drove and operated much better than my current 2013. Since the update that was installed Friday the tranny seems to operate smoother, the drone is at the minimum, and believe...
  10. rpm vibration / shake advice

    2014 Dodge Ram Forum
    I have a new 2014 Limited with 8 speed trans. When driving at around 1500 rpm the truck shakes. You can feel it in the seats. A water bottle in the console shakes and you can feel it. If I slowly apply power it persists then goes away as gear drops and rpm goes up. If cruising at that kind of...
  11. mds, but still not good mpg

    hello im new to this site, my original question was going to be why my truck sounds like a growling when mds kicked on, but after reading some forums I believe its from my flow master, I just purchased a 06 ram 1500 big horn 5.7 hemi 3 days ago with lots of mods. so now my question is if 12.9mpg...
  12. Using MDS causes motor problems?

    5.7L V8 Specific Topics
    I currently have a 3rd gen 08 dodge ram 5.7L that has MDS with 104,000 miles. I'm not exactly sure how the v8 to v6 cylinder change is actually healthy for your motor. My question is- If your inactive pistons aren't getting oil on the highway(in v6 mode) for some time and get dry, then when...
  13. Clicking when MDS engages

    5.7L (345 cu in) HEMI V8 Specific Topics
    Hey - Hope this is the right place for this question. (my first post!) I just bought a 2011 Ram 1500 about a week ago. It has 36,000 miles on it. I didn't notice on the initial test drive, but after bringing it home and driving through town at lower speeds, there is a weird clicking sound. This...
  14. How do you know when the MDS is working?

    2009 Dodge Ram Forum
    I am wondering if there is a way to tell when the MDS kicks in. I have a 2009 Ram Laramie and it has a Fuel saver light that comes on when you are light on the throttle but was told that has nothing to do with the MDS. The Fuel Saver light comes on even when its cold and i was told the MDS only...
  15. Help! Trans/MDS/clutch issue??

    Performance Mods - Engine - 5.7 Hemi V8
    I have a 2007 Ram Hemi 4x4 QC with approx 74,xxx miles. The last month and half my truck has been lurching when coming to a stop. This only happens every so often (1 or 2 times a week) and my truck doesn't actually move since I'm on the brakes. Another possibly related issue is when I first...
  16. MDS and transmission

    Diablo Predator Questions & Info!
    I recently purchased a diablo predator for my 07 dodge 1500 hemi and I put the 87 octane tune in my truck. my question is how do you disable the MDS and are there any transmission tunes or other tunes anyone would recommend? K&N drop in filter, 14" magnaflow exhaust.
  17. MDS engine into non-MDS car issues

    Hey guys, I'm new here........hope you don't mind me posting a Durango question on a Ram Forum. I bought a 2004 Durango 5.7L (non MDS) with a blown motor (had a snapped rod and 2 holes in the block) with the intent to fix the engine. I bought an engine with MDS from a guy on Craigslist.......I...
  18. 09 Hemi exhaust/resonator ?

    How many resonators are on the 09 HEMI Rams (single factory exhaust)? Read some posts about people removing only the rear resonator but when i look under the truck, the rear resonator is the only one i see. What am i missing? Reason i ask is because i will be upgrading exhaust soon. Thinking...