sfemti33
New member
Stock 2025 F-150 Tremor 3.5 and I'm noticing something odd that I'm hoping others can weigh in on.
On moderate uphill grades (around 7%) while unloaded, I'll occasionally feel what seems like a slight surge or oscillation. When I look at the cluster, I can see the turbo boost gauge bouncing up and down, and at the same time the RPM needle fluctuates by a couple hundred RPM.
If I lift off the throttle and get back on it, the issue usually disappears. It also seems to go away if I give it more throttle. There are no warning lights, nothing shows in OASIS, and my scanner doesn't find any stored or pending codes.
I drove the exact same routes hundreds of times in my 2018 Raptor and never experienced anything like this.
Has anyone else with a 2024 or 2025 3.5L EcoBoost noticed this? Is this just a quirk of the new transmission/throttle programming, or does it sound like something isn't right? Could it be lugging a bit in 10th gear on an uphill grade? The rpms are usually around 1500-1800 when this happens.
On moderate uphill grades (around 7%) while unloaded, I'll occasionally feel what seems like a slight surge or oscillation. When I look at the cluster, I can see the turbo boost gauge bouncing up and down, and at the same time the RPM needle fluctuates by a couple hundred RPM.
If I lift off the throttle and get back on it, the issue usually disappears. It also seems to go away if I give it more throttle. There are no warning lights, nothing shows in OASIS, and my scanner doesn't find any stored or pending codes.
I drove the exact same routes hundreds of times in my 2018 Raptor and never experienced anything like this.
Has anyone else with a 2024 or 2025 3.5L EcoBoost noticed this? Is this just a quirk of the new transmission/throttle programming, or does it sound like something isn't right? Could it be lugging a bit in 10th gear on an uphill grade? The rpms are usually around 1500-1800 when this happens.
