dcfluid

Can you diagnose this noise?
Before the dealer this Friday?
Clues:
The cavitating vibration sound is coming from the transmission oil cooler lines running into the cooler from under the motor. I assume running from transmission.
The line vibrates with the frequency of the sound.
Comes on after coming to an idle after a long drive.
Happens a couple times a month.
A blip of the throttle clears it up.

Any educated answers so I can run it by my dealer this Friday?
Thanks in advance.

dcfluid

Take a listen anyone?

Pigman67

Sorry, not a clue. New noise to me on our trucks.

colormegreen

sounds like a bad bearing

DBL Boost

Power steering pump?

mike243

WAG,Trans filter dirty

dcfluid

My thoughts are targeted at: transmission oil pump, transmission oil thermostat, now add dirty trans filter.
Something in the circulation of transmission oil cooling system.
It is acting up more now with warm weather and when fully hot after longer drives.
Thermostat?

dcfluid

Dropping off at the dealer in a few hours, they will have it for the day.
I will post their response after I pick it up.
See how many guessed the right diagnosis. Get your votes in now on the mystery noise.

cbrenn71

it does sound like a bearing growling.

dcfluid

Okay, my dealer results are in. No one will be surprised but I'm pissed. Reasons below.
1) Although I provided the video along with my diagnosis of the parts making the sound dealer claims to have spent an hour trying to replicate the sound. Failed to replicate, no action taken.
2) My drivability problem claimed 3/4 hour diagnosis, could not replicate problem. Blamed dirty air filter and changed it (not! 5000 miles on it since changed at last service, inspected it before taking it in).
3) Charged me $100 per hour for the "could not replicate problem" troubleshooting. Stated if Ford won't pay then I do.
4) Tried to get me to resurface front brake rotors. They were done under warranty at last service 5000 miles ago. Now they're done.... Ordered complete set after market myself.
5)Basically just got an oil change and lube. I supplied my own Mobil 1 oil. Air and oil filter by dealer. $370,
6) I left my dash cam on all day. In HD I have proof that the truck went into the service bay for 1.5 hours, moved out and parked the rest of the day. The drove it until hot and tried multiple times to replicate the problems was a total fabrication. Other small service tasks written down as performed were not done.
I have had enough. Back to servicing my own stuff and only taking the truck in for undisputed warranty.
Already looking at going back to GMC for a 6.2 V8. If only they would made a Ford like interior.
Unfortunately the wife gets her new SUV first. Starting to look more like another Pilot instead of the Edge.
Dealers are maddening...