Anyone have issues with LML Rumble?

[496 BB]

Love my tunes but seems my truck is the ONLY truck my tuner has had that has this issue and hes a very well known tuner and awesome guy.

When Im at idle it still hisses sometimes and other times it will rumble. Cant seem to find any correlation or pattern as to when or why it does it. Doesnt matter if Im in gear or in park. Seems its better when warmer outside but still does it. High idle is not engaging either as I know that will do it. Does it on each tune I have being 40, 75, and 125. If I give slight gas to raise rpm up about 50 or so it goes away and stays rumbling.

Just wondering if anyone has had this issue as well or I just a "special" truck. Hell maybe its something Im doing wrong cause Im sure its not the tuner. Enlighten me.

 

[S Phinney]

I'm sure he missed a table. Everything has to be just right or it will cycle back and forth. There isn't as much turbo control on the LML trucks.

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[clrussell]

I have a customer with a 2012 and it does the same.. Set for rumble but only will when it wants to..

 

[fast03]

on lmm there is an engine temperature table that can affect it. I have never looked at my lml tho

 

[duramaxzak]

Mine will hiss for a very short time on cold start up.

 

[stroke250]

I had the same problem. Switched tuners and now it rumbles like I wanted.

 

[IOWA LLY]

Who are the tuners in question? Why is everyone always so secretive about who is doing the tuning anymore?

It's not like there is any bashing going on here. Just a discussion about idle rumble. Doesn't seem like anything to top secret, and information sharing is kinda the idea behind a public forum....

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[duramaxzak]

Motor ops on mine!

 

[catman3126]

Have the same issue with 11-14 on the ones I tune. 15+ I have no problem getting the turbo to stay open at all times. still goes to 0% under a hot run but makes good boost and is spooled up and stays there, guess that's fine.

 

[496 BB]

Tony tunes mine. Just wonderinf if its a certain year lml thing or not. I know its silly but annoys the hell outta me. Kinda like truck has torrettes at a stop light.

 

[stroke250]

I ran Tony's. Now running Kory's.

 

[496 BB]

Yea but hes on crack for $350 for a single damn tune. It doesnt bother me THAT much