[MishMosh]

Hey guys, so my '15 EcoBoost SuperCab vibrates while gently accelerating/cruising uphill on the highway. The vibration is similar to going over rumble strips (slightly softer though). It actually feels like going over 3 rumble strips only then stops for a second and does it again. This occasionally happens during normal driving but will always occur while going uphill. The car is perfectly fine if I actually accelerate fast and doesn't feel like there is a loss of power or the engine choking. No engine light on and the RPM is stable when that happens. Only other thing I noticed that the engine slightly vibrates during idle (it could be misfiring idk).

The car has only 35k miles on it and all of the check-ups and oils changes were done at the dealership.

Has anyone experienced this before or have an idea of what is going on?

Thanks!

 

[snakebitten]

You will find another thread around here with very similar symptoms and just recently a fella stated he had his transmission serviced, and the symptom disappeared.

Basically a fluid change was his claim to happiness. No guarantee, of course. But certainly an inexpensive option and one that does no harm.

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[MishMosh]

You will find another thread around here with very similar symptoms and just recently a fella stated he had his transmission serviced, and the symptom disappeared.

Basically a fluid change was his claim to happiness. No guarantee, of course. But certainly an inexpensive option and one that does no harm.

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Thank you. That is my first go to option along with swapping the spark plugs. Just wanted to get some opinions before I spend some money on that.

 

[Mikedick77]

You might look into the weep hole in your intercooler also. Oil up the intake from the IC could cause studder symptoms also, though I haven't heard any specifically described as yours are. Depending on if your climate is cold about now, this may exaggerate the symptoms even.

 

[snakebitten]

This is the other thread:

16 Rumble Strip/Shudder/Vibration when accelerating

Hello all! 2016 2.7 EB XL 110k miles. Purchased used and the truck didn't seem to have any issues at all....until I left after buying and hopped on the highway, and now I have the infamous transmission shudder. When accelerating from 30mph -75mph I experience what I would best describe as a...

www.f150ecoboost.net

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[Excursion69]

I have a 2013 f150 EB and I'm having the same symptoms. Cruising speed and accelerate on slight incline the truck sputters lightly. Gas mileage has decreased as well. Any thoughts

 

[Mitchf150]

Just 'cause you have your truck serviced at the dealer is zero grantee that it's done RIGHT... I did my first free oil change at the dealer where I bought my brand new F150 and didn't think of it at the time, but when I got home, checked the oil and they over filled by a full qt.... Bet they but in that 5w20 stuff too..... How do I know they put an extra qt in? Used my vacuum pump and sucked out a full qt and the oil level was then at the FULL mark.. Changed the oil about a week later when I thought more about it and have never been back, except for the 2 recalls the truck has had...

Sounds like a miss fire to me... I have a 13 with 85k miles on it and don't have those symptoms. Tow a heavy TT over passes and I'm into the boost for sure doing that and it just humms up the grades and no issues..

Good luck!

Mitch

 

[EcoXLT]

Just 'cause you have your truck serviced at the dealer is zero grantee that it's done RIGHT... I did my first free oil change at the dealer where I bought my brand new F150 and didn't think of it at the time, but when I got home, checked the oil and they over filled by a full qt.... Bet they but in that 5w20 stuff too..... How do I know they put an extra qt in? Used my vacuum pump and sucked out a full qt and the oil level was then at the FULL mark.. Changed the oil about a week later when I thought more about it and have never been back, except for the 2 recalls the truck has had...

Sounds like a miss fire to me... I have a 13 with 85k miles on it and don't have those symptoms. Tow a heavy TT over passes and I'm into the boost for sure doing that and it just humms up the grades and no issues..

Good luck!

Mitch

I totally agree with you. My warranty came with 7 years of oil changes. I always checked oil level after changes. I hated when the window reminder sticker says 5w30 and the paperwork says 5w20. You go back in to talk to adviser and get , you got 5W30 and paper work always says 5W20. I say you need to fix that because I don’t know if I believe you. By the way I used my last dealer service just recently so from now on I know it will be done right. I’ll be doing it myself now.