Vehicle & Technical > Range Rover

Noise and Vibration

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DaveS:
My 89 Classic has started to make a knocking noise, and has some vibration. It seems to come from around transfer box, could be from rear. Autobox is working fine. It has viscous type centre diff and BW autobox.

Noise is there on load and with box in neutral(coasting). Have'nt had time to look and its too wet and cold, but any pointers/hints would be much appreciated.
Thinkinh u/js or diff problem?

Damn thing really starting to annoy me, lots of problems this year. :(

Range Rover Blues:
Without specifics about that knocking I'd suggest you check the propshaft hasn't come loose.  Is it a speed related knock or just a single knock when taking up drive? is it there under heavy acceleration?

DaveS:
Speed related, have checked propshft seems solid, no side to side or end paly that I can see. Going to check wheel bearings etc when I get  time. Seems to be coming from rear axle region. :(

Range Rover Blues:
I'm going to suggest you jack it up at both ends and run the engine/transmission to see if it still makes the noise, that way you can walk round the car and listen to both wheels.  I'd suggest axle stands under the back axle and the jack alongside one front wheel, leaving one on the ground.  If the noise goes completely it could be bearings or drivetrain damage.  If it's still there it could also be a stone in the hub, disk damage etc. etc.  If it get quieter thatv would also suggest drivetrain.

Does it do it in reverse?  do you think it's in time with the wheels or the propshaft, is it slower than that?  Are your wheels tight and all the bolts/nuts free ie not binding before they are tight?  what wheels have you got on?

Henry Webster:

--- Quote from: "Range Rover Blues" ---I'm going to suggest you jack it up at both ends and run the engine/transmission to see if it still makes the noise, that way you can walk round the car and listen to both wheels.  
--- End quote ---


If you do this, be very, very careful!  Only do it if you have a solid flat surface and at least four properly rated axle stands.  

I would do this myself, but I wouldn't usually recommend anyone tries this.  I suggest you have someone in the car ready to jump on the clutch and brakes if something goes wrong.

H

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