Dan Vac

Ive noticed since new that you can hear some sort of drive train resonance under any load or going up hills. Figured this is normal. Please let me know if yours do the same. Just hit 3020 mi.

justjimmy

Sounds like the creeping issue that the 5.0 L may have:

http://www.ford-trucks.com/forums/10...-at-5-kph.html

11screw50

doesnt look like it is isolated to any one engine based on that thread, seems like a mix, half of the 2011's didnt post what engine and a few pre-2011's posted too.

If this is the same issue, it kills the theory that it is isolated to the 6.5' bed. (doesnt really sound related to me unless the OP meant it only happens when starting off at a slow to moderate rate).

justjimmy

I guess I wasn't clear. My intent was to point to the 6 speed tranny being the possible issue, not the engine.

Dan Vac

It takes off fine the noise im talking about happens when your at any steady speed and load increases like pulling a hill. It most likely does this on all of them but you can hear it on ecoboost most likley because it is so quiet. Just wondering if other EB owners have noticed this.

laketrout

I know exactly what you are talking about and yes mine does it too.

EcoBill

Mine does it at about 60ish as a low pitched moan

Dan Vac

Thanks guys I was just curious. Now i dont feel need to document this with the dealer. It doesnt sound like anything is wrong.