2017 Cruise control question

[Stephen Swap]

I have a 2017 F250 6.7l and have a question relating to the cruise control. When set at speeds higher than 60mph the speed slowly creeps down below the set point. At about 5mph under the set point it kicks in and brings the truck up to speed. Not the best scenario for good fuel mileage. It's more noticeable going up grades but does exhibit the same symptom on the level. I just returned from my first RV trip with my new truck and this was the only thing that didn't function as I had hoped. The trip was 4,100 miles and the truck now has about 5500 total miles on it. Anyone else have this issue?

 

[01yellerCobra]

I've never heard of that issue. It should stay steady. I'd take it to the dealer.

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[Kleetus]

Interesting... my 2006 does similar... it wanders all over the place. I thought it was because I had it tuned, but it might just be a really sloppy PID control loop in the cruise control. I never have found a cure.

 

[Ziefer92]

It's too early to have that kind of issue. You may want to take a video when occurs before you take it to your dealer.

 

[Stephen Swap]

It's too early to have that kind of issue. You may want to take a video when occurs before you take it to your dealer.

The video is a great idea. I mentioned the problem to my dealer and they are going to pose the question to Ford