Surging

bshort · May 11, 2019

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 · May 11, 2019

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

bshort · May 12, 2019

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 · May 12, 2019

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 May 12, 2019 by steve841

bshort · May 17, 2019

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.

TexasAt4 · June 3, 2019

What was the solution to this? Mine is in the shop now for the same thing. It does it all the time now.

gt tangerine · June 3, 2019

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.

Dallas Kiezik · December 8, 2020

Any updates for this condition

Dallas Kiezik · February 13, 2021

Update is they are going to flush the tranny as they feel the torque converter is locking and unlocking causing the surge.

Dallas Kiezik · February 20, 2021

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.

Dman10 · September 1, 2022

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.