Hi
I know things are very difficult to diagnose without seeing or listening to. But as the title says I have a droning humming sound from I think the front. There is no vibration through car . It does this at speeds between about 10 to 40 mph. It only lasts a few seconds and appears erratically. Am I right in thinking there was a front diff recall problem.
Vehicle is 2004 4.4
Alan

The cats can drone if they fail internally, give then a good whack with your fist and see if they rattle, one of mine sings to me now and then.... just something to check...

Have a look at you front prop to diff, if it looks just like this then the update has been done..



Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated  Pete
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Thanks Pete I shall look at the cats though I hope the rspca don't have a go for me whacking them lol
Shall also have a look at front prop. If update not done what needs to be changed
Alan

Wheel bearings and tyres can drone.

What happens if you drive straight then turn the steering sharp in one direction or the other, does the noise increase or stay the same?

My wife in the front seat? She drones at lot. 405 AB exec seats Baltic and Cirrus
93 RR Classic efi

Remember it's easier to get forgiveness than permission!

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