Whirring noise under load

[Mikee03]

Have had a whirring noise for the last couple weeks that increases and decreases with speed. Has seemed to be getting a little louder over time also. 2003 4x4, 135,000 on her. Just checked and the 4 wheel drive is engaging and disengaging o.k. Thought maybe it wasn't disengaging, the noise is similar to when it is in 4 high and expressway driving. Any ideas? Does not shimmy thru the steering wheel, does not pull at all while driving.

 

[Dre L]

Tires or bearings. Checked driveshaftS foreplay yet?

 

[Mark K 2]

foreplay

Kinky.

 

[RedRanger 7]

When vehicles are under load the Clutch fan will pull the engine fan to keep the engine from over heating. If you are beside a semi going up a hill you will definitely hear that trucks engage and howl. :driving:

 

[Gavin Allan]

Universal joint getting ready to take a dump.

 

[Mikee03]

Thanks for the input guys. Going to have a buddy, that is a Ford mechanic at WHQ here in Dearborn, take a look and see if he can diagnose and narrow it down. Will pass on the info and ideas from here.

 

[Mikee03]

Final diagnosis...right front wheel bearing, probably due to the great condition of Michigan roads!. Again, thanks for the help.

 

[Gavin Allan]

Thanks for the follow-up! That helps us all learn.



Good luck!

 

[Mark K 2]

My wheel bearings made the same sound when they both went out at the same time.

 

[Dre L]

Kinky

Not really, when the shaft has play, you're about to get f****d.