PB fanboy, experiences first (potentially) serious problem.

[Davexxxx]

Other than some electrical, nuisance type gremlins early on, which have all disappeared, for more than a yr. by charging directly to the battery posts and then immediately doing a BMS reset, I have loved this truck. I mean, a lot. And not been quiet about it but I promised if things changed, I'd be straight about that too.

There are tons of threads about vibration. Some slight, some harsh, some described as grinding, often blamed on the transmission, especially the PB transmission, with it's electrical motor coupling etc.

Recently, I've noticed a vibration at highway speeds. 65mph (+-). Can't feel yet it but I can hear it. A repeating change in sound frequency. It isn't loud yet but it is there. There are no other symptoms. Trans shifts normally, temps normal, all systems function as they should.

Lots of road construction going on locally and at first, I dismissed it as that but it is on roads not under construction too.

According to Ford Pass, tire PSI are within a pound of each other.

At close to 18.5K miles, half of it towing in the 7,500lb. class, at near max payload, across the Rockies and back twice, it hasn't exactly been babied but has performed beyond my expectations.

My plan is, so long as it doesn't get worse, or I notice something else specific, at it's 20K mile service, I'll have the tire balance checked and rotated,, both differentials checked and the trans checked.

Of course I'll report back those findings, or anything in the interim.

Anything else?

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[dadrew]

you cant feel it in the seat or the steering wheel yet?

 

[Davexxxx]

you cant feel it in the seat or the steering wheel yet?

Nope, just road noise. Or a driveline type hum but it is a repetitious change in frequency.

 

[Groovicles]

Other than some electrical, nuisance type gremlins early on, which have all disappeared, for more than a yr. by charging directly to the battery posts and then immediately doing a BMS reset, I have loved this truck. I mean, a lot. And not been quiet about it but I promised if things changed, I'd be straight about that too.

There are tons of threads about vibration. Some slight, some harsh, some described as grinding, often blamed on the transmission, especially the PB transmission, with it's electrical motor coupling etc.

Recently, I've noticed a vibration at highway speeds. 65mph (+-). Can't feel yet it but I can hear it. A repeating change in sound frequency. It isn't loud yet but it is there. There are no other symptoms. Trans shifts normally, temps normal, all systems function as they should.

Lots of road construction going on locally and at first, I dismissed it as that but it is on roads not under construction too.

According to Ford Pass, tire PSI are within a pound of each other.

At close to 18.5K miles, half of it towing in the 7,500lb. class, at near max payload, across the Rockies and back twice, it hasn't exactly been babied but has performed beyond my expectations.

My plan is, so long as it doesn't get worse, or I notice something else specific, at it's 20K mile service, I'll have the tire balance checked and rotated,, both differentials checked and the trans checked.

Of course I'll report back those findings, or anything in the interim.

Anything else?

Yup, I've been hearing and feeling those vibrations every now and then while at stand still and driving a low speeds. I've had this shit wagon since 2022 bought from factory and this is just another case of piss poor quality that's been added to the list that has been growing monthly since I took possession of it. I hope you get this sorted out and that it doesn't turn into a giant expensive shit hole of regret like it has for me.

 

[Davexxxx]

The vibration is getting slightly worse and I have new data.

Its very slight but under the right conditions, I can sort of almost feel it in the steering wheel and at 55 or so. Previously, I'd noted 65.

It is only when under load (going up an incline) and disappears when not. That seems to rule out anything to do with the tires and leads me to think engine, trans, rear driveline as possibilities.

 

[Jerome10]

I sorta think I notice this on my truck but maybe more like 70-ish. I have the Powerboost also.

I'm quite certain it is the exhaust for me.

If I use cruise control to keep steady speed where I get the noise, then lock out 10th gear (so truck is in 9th) to bring the revs up slightly, the resonance stops. As soon as I let it drop into 10th again, the hum is back.

I don't really notice it much anymore but if my brain drifts off while at the right speed sometimes it will pick up on it again.

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