Hi All,

I wasn't sure where to post this? It could have been posted under the SD forum but I choose this one.

I purchased the truck last Thursday and now have 500 miles on it.

I have 2005, F250SD, PS with an automatic trans. When I accelerate I hear a hum. Not like an engine noise. More like you would hear on a Chevy when the heat shield on the exhaust comes loose, it doesn't rattle; rather is a very low sounding hum. (Did I talk bad about Chevy ) . The noise is coming from the engine compartment and I can't find the source. I really don't want to have to take it back to the dealer right away, but I thought I better ask the question considering I'm a newbie with diesels and don't harm the PS. BTW, this started on Saturday, three days after I picked up the truck.

All comments are welcome and thanks for taking the time to read this.

Kindest Regards,

Chuck

 

Is this when you are pulling long enough to heat up the trans.? mine make a noise when i pull a long grade. I think it is the trans cooler. ?

 

Sounds like the power steering pump. Mine does it when I turn, otherwise it's quiet. I have heard of some faulty units.

 

Could it be the exhaust drone? Does it happen in the 1400-1600 RPM range?

Duncan