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Surging

bshort
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bshort Enthusiast

bshort

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Posted

19 SLT 6.2. 

 

I was was driving down the highway and noticed the engine would surge up and down about 150 rpm. I set the cruise to make sure it wasn’t me and it still did it. Didn’t matter the speed the cc was set at. No cel and everything seems to be operating as normal. Is this a part of DFM?  If so, this will get annoying in a hurry. 

steve841 Enthusiast

steve841

Posted
Posted

There are any number of software updates you probably need ...  visit the dealer, most are undeclared "recalls"

bshort Enthusiast

bshort

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2 hours ago, steve841 said:

There are any number of software updates you probably need ...  visit the dealer, most are undeclared "recalls"

I would think they were all done when I took delivery 25 days ago. 

steve841 Enthusiast

steve841

Posted
Posted (edited)

Call service and give your VIN.  Ask them if any updates are noted.

 

they are not traditional recalls the dealer must address before delivery...

Edited by steve841
bshort Enthusiast

bshort

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On 5/11/2019 at 5:31 PM, steve841 said:

Call service and give your VIN.  Ask them if any updates are noted.

 

they are not traditional recalls the dealer must address before delivery...

Stopped by the dealer today. They said there were no bulletins to address the issue. I might just have to leave it with them a day. 

  • 3 weeks later...
gt tangerine Enthusiast

gt tangerine

Posted
Posted

My 2016 did this and was annoying as heck. I was told that everything was operating normal. My 19 does not replicate this and I am grateful. I never figured out why the 16 did that with the cruise being on. 

  • 1 year later...
  • 2 months later...
Dallas Kiezik Enthusiast

Dallas Kiezik

Posted
Posted

Drive home seemed a little better, rpm fluctuation still happened a dozen times or so, apparently it’ll get better and smoother within the next 100kms.

  • 1 year later...
Dman10 Enthusiast

Dman10

Posted
Posted

I was direct messaged if it worked, seems to have corrected the issue.

they also did a throttle body reset and the afm torque management all seem to be a part of it. But yes it did smooth out there are some surges but it’s as cylinders drop and it’s less frequently.

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