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  #11  
Old 01-05-2014, 01:27 PM
macdpd macdpd is offline
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Quote:
Originally Posted by Quiet Lunatic View Post
I did a search on here and couldn't find anything so I'm gonna post...
I've had my 09 Ram in twice for "surging issues." Both times they "could not duplicate problem."
It surges at low rpms...300-500 rpms sometimes. Never when I'm using cruse. The guy at the dearship said it's prob the MDS kicking in and out...sounds logical but still not satisfied. Hence why I'm asking you guys...thanks in advance.

I know this is an older post but I have a 2013 that is doing the same thing, as usual the tech couldn't replicate the issue until I took him for a ride. Going back in on the 6th. for the day so they can investigate further. Not happy with this truck and I'm having a bunch of other issues with it, never again will I buy a 1/2 ton ram. Going back to a 6.7 Cummins, these "eco" trucks are not for me, way too many bells and whistles on them and probably the root of all the problems.
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  #12  
Old 01-31-2014, 01:33 PM
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I'm having the same issue! It doesn't happen all of the time. But when it does it's usually between 15-35mph. The best way to explain it would be to say that it kind of sounds/acts like it has a nice cam. I don't think it's the MDS because I have mine turned off with my tuner. Glad I'm not the only one.
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  #13  
Old 02-03-2014, 01:19 AM
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I am having the same issue with mine. I noticed it in park the other day. It would surge. I even made sure the a/c was off. Next time I parked it, it was fine.
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  #14  
Old 02-03-2014, 01:40 AM
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Honestly it sounds like one of the sensors that feeds the PCM that controls the idle is messing up or hiccuping.

The MAP sensor(Manifold Absolute Pressure), MAF sensor(Mass Airflow Sensor), and the Thorttle Body are the three main ones.

Might be worth checking your throttle body and making sure the blade is clean and free of any gunk. Clean them with brake fluid if they are dirty.

Also it may help to run a fuel cleaner through the system.

Just tossing out ideas/cheap things to try.
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  #15  
Old 02-28-2014, 09:50 AM
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Checking and cleaning throttle body can help this as well for people with out a catch can.. they do get gummy in the intake manifold side..
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  #16  
Old 07-16-2014, 05:53 PM
macdpd macdpd is offline
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Just a follow up on the multiple issues I had on my 2013 1500, after multiple trips to the dealer and not being able to eliminate the surging, hesitation, low fuel economy, no start issue, stalling while driving, no ignition power when key turned to run position, U Connect 5.0 radio replacement 3 times, etc. I could go on and on about this POS. I went the lemon law and Chrysler/RAM purchased my "lemon RAM" back.
Horrible experience with the 1500, I just must have got a bad one off of the line.
I went back to a 6.7 Cummins, I should have kept my 2011 but now I have a 2014 2500. I hope this one is as good as or better than my 2011.
As for the hesitation and surging on the 1500 RAM techs could not figure it out or fix the condition and there are a lot of 1500 owners coming in with the same issue as I had and others are having.
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  #17  
Old 08-10-2014, 06:20 PM
Oregon Oregon is offline
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New member, first post. I created an account for this problem, but I'm sure I will frequent the forum.
At least on mine I have been able to tune it out momentarily by using the tow/haul or OD off modes. Always below 35mph.
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  #18  
Old 08-10-2014, 06:21 PM
Oregon Oregon is offline
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Quote:
Originally Posted by Arth View Post
Honestly it sounds like one of the sensors that feeds the PCM that controls the idle is messing up or hiccuping.

The MAP sensor(Manifold Absolute Pressure), MAF sensor(Mass Airflow Sensor), and the Thorttle Body are the three main ones.

Might be worth checking your throttle body and making sure the blade is clean and free of any gunk. Clean them with brake fluid if they are dirty.

Also it may help to run a fuel cleaner through the system.

Just tossing out ideas/cheap things to try.
Brake Fluid? Or Brake cleaner? Either way I would suggest contact cleaner before using either of those.
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  #19  
Old 10-20-2014, 07:24 PM
hitechex hitechex is offline
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Default surge at low rpm's

Here is your answer. Mine did the same thing, took it to the dealer multiple times, they thoouht I was nuts of course. Until the lead mechanic took it for a day and drove it. The problem was the cylinder heads needed to be replaced. I develop race engines for a living and I thought it was a sensor and ECU but it wasn't. It seems the heads were done in Mexico and the exhaust seats leak which casues it to stumble and low rpms. The found it when they did a leak down and compression check. It was one of the older mechanics that said they had a similar problem many years ago and it traced back to the valves not sealing. They replace the heads and it went away. I am sure there are a lot more experiencing this issue with no results from the dealer. Finding mine was a stroke of luck from and old timer.
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  #20  
Old 12-03-2014, 05:22 PM
Red09Ram Red09Ram is offline
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Quote:
Originally Posted by hitechex View Post
Here is your answer. Mine did the same thing, took it to the dealer multiple times, they thoouht I was nuts of course. Until the lead mechanic took it for a day and drove it. The problem was the cylinder heads needed to be replaced. I develop race engines for a living and I thought it was a sensor and ECU but it wasn't. It seems the heads were done in Mexico and the exhaust seats leak which casues it to stumble and low rpms. The found it when they did a leak down and compression check. It was one of the older mechanics that said they had a similar problem many years ago and it traced back to the valves not sealing. They replace the heads and it went away. I am sure there are a lot more experiencing this issue with no results from the dealer. Finding mine was a stroke of luck from and old timer.
I just had my heads rebuilt and replaced all the parts from the cam up. Valves were not seating well. I'm the second owner with no warranty, so it was a fairly expensive step. Also, after redoing the heads, I still had a rough idle and random misfires on 2 and 5. Replacing those two injectors fixed the problem.
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