You can put it in manual mode and it will disable CD, I typically do that on the hwy since you are not changing gears all that much. That’s funny to hear you say about the 4H being annoying every time you pop it in sport mode, totally agree. I hate always having to switch it back, seems like unnecessary wear, the older gen’s defaulted to 2H. Has no one figured out how to disable CD in normal mode with forscan?

Auto stop stays off in Eco mode as I drive Eco about 75% of the time. Just over 5000 miles and since new I average 20.8 mpg based on the truck computer. Eco mode is good for me because I mostly drive 250 miles per week for work in traffic. If I want to go faster or have more responsiveness I put it in Normal or very occasionally Sport.

I have a 2023 F150 V8 too. How did you get the dual digital displays for rpm and mph to appear? I like it!

Engineers said when cylinders are deactivated, they cool down compared to the active cylinders. Part of the engine being hotter and cooler can cause warping in the block. It might leak coolant or might have head gasket damage. Just what I heard.

People buy v8s for a reason, if they want a four cylinder truck… guess what they make them. Stop messing up v8 engine with this crap.

You should get borla ATAK it doesn’t drone and I have a couple buddies that has borla atak on their truckes and they said it doesn’t drone

Just switch the truck over to sport mode or really all you have to do is stick your foot in the throttle a little and once you get into a higher rev range I’m sure the other cylinders will decide to start firing again

Just subscribed brother

In aviation mechanical problems have greater consequences which creates a different lens to look through. In early development of the OH-58D psychotic version of a Bell Jet Ranger, tail boom cracks were discovered just forward of the tail rotor due to vibrations outside design tolerances. The higher RPM of the tail rotor required to counteract the upgraded 4-blade soft-in-plane rotor system created those vibrations and cracks. The Solution: install a certain plate over the area with proper and sufficient riveting. The Result: Vibrations propagated up the tail boom to cause cracks in the oil cooler deck. The moral of the story is doing this non-standard task is nothing more than trading one point of failure for another.

From what I understand, Sport mode will basically go in 4H only when it senses wheel slip. Therefore it acts as 4wdAuto.

You should get a J&L catch can. I have one on my 5.0 and it’s definitely worth it

In 2024 now, are there any cylinder deactivation tunings that "don't" cause warranty issues?

Unplug the trailer harness under the dash.

4 auto doesn’t mean you are driving all 4. the only time it will kick on all four is when it detects traction loss. Otherwise you’re basically in 2wd

Put it in tow/ haul or sport mode and it shuts off cylinder deactivation

I knew that will shut it off But how’s shifting in tow?

So is it perfectly fine to drive tow/haul or sport mode 24/7?

My ‘21 shuts it off in sport and tow/haul…

The belt driven oil pump on the newer 5.0 concerns me.

Sorry but the cylinder deactivation does not save any fuel as a matter of fact the v-8 without it gets better fuel mileage about 2 mpg better

Simply unplug it from the battery.. there is a 2 wire plug..just unplug it. My 23 has this plug. EDIT: After watching the rest of the video, that's crazy your 23 doesn't work. I seen a video about this.and I guess I need to make sure it dis actually work on my 23 since you said it doesn't on yours

Huh interesting mine doesn’t have this feature.

Cylinder Deactivation is a joke . Pay big money for vehicle's and assholes come up with stupid ideas that keep us coming back to dealerships for fixes , or they will take your money when you buy something else. They will keep us poor.!!!@

Mbrp is trash period