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hi room , i recently developed a very loud whining noise in the car , seems to be road speed related , ive jacked up the car and i cant say there is any play in the wheel bearings, tight as drum/s in fact ....could it be a drive shaft letting go...any ideas appreciated...thanks zoo
Edited by Dynamic Dave on 22/04/2008 at 14:40
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It could be my ex wife in the boot!
On a serious note: where is the noise coming from? front/rear? l/hand side/right hand?
If you drive and knock it into neautrel is the noise still there?
Check your gear oil, when you jack the wheels up and spin them is there any noise?
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My Escort quite suddenly developed a noisy final drive or final drive bearing, both probably. The remedy was a good s/h gearbox.
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I wd add that the possible cause was oil starvation, as the box seemed virtually empty when checked. If there's an old drip on one side or the other of the gearbox where the driveshafts come out, that may be it.
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sorry bigtee missed your reply , i tried knocking in to neutral and its still noisy , also i spun the wheels when raised on the jack but the only noise was from the gaiters and cv joints (that rubbery noise) and none are split
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Such noises are almost impossible to diagnose without seeing the car. However I would suggest the following checks:
Does the whine occur in every gear? Rear diff or gearbox. Suggest getting a friend in the car to listen whilst you drive
Is the whine more noticeable or come and go round corners, in which case a front wheel bearing could be at fault.
Can you hear the whine with the car stationary (cam belt or tensioner)
Not much more I can suggest really. Good luck.
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thanks for the helpful replies, it only whines when on the move in all gears but alters with road speed, tends to go quiter on left hand cornering, ive got it on the jack now and i may have ever so slight play on the n/s/f or is that movement in the steering? thanks again all ..zoo
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Could be a wheel bearing. Listen as you are cornering, see if it increases or decreases. It will usually be the side with more weight on it i.e. the left hand side when you are cornering to the right.
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You just beat me to it! I would say definitly wheel bearing. Its unlikely to make a noise with no weight on it, it's caused by the case hardening failing leaving a pitted surface so only does it when weight is applied.
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Just a PS. If it quietens when cornering left, it will be the left side bearing.
Edited by Peter.N. on 22/04/2008 at 12:46
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"Just a PS. If it quietens when cornering left, it will be the left side bearing."
I always thought that too, but then I had one go in my Xantia, and that was the opposite - quietening when under load, and we had one go in our ZX and that was just constantly noisy! Citroens, eh???
The OP's niose definitely 'sounds' like a wheel bearing to me.....
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Perhaps I should have said 'usually' Richard.
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i think i will see if the g/box needs any oil before i start taking wheel hubs apart and go from there, should wheel bearings be so noisy as to make it impossible to hear the radio on very loud?
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They can be! I put up with one on my CX for thousands of miles and when I eventually changed it, I thought I had gone deaf!
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ive had the 8mm filler cap off and threaded a piece of plastic banding tape in to the gearbox bent at right angles and its not registering any oil 5 inches down!! oh but the wheels are just in the air so its tilted back slightly.... cheap sae 80 any one?
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oh can i just add , will topping the gear box up quiten things down or is the damage done? thanks again
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Not much I'm afraid, even if it needs oil. Additives don't help either in my experience.
But the difference in sound when turning left and right does suggest it may be a wheel bearing. Cheaper than a gearbox and easier to deal with if your mechanic is honest. But a worn bearing usually makes a rumble or growl different from 'gear whine'.
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what makes me doubt its a bearing is its only just passed the MOT , and a rear bearing was failed but has since been renewed... any way like i say i'l top up the g/box tomorrow and report back .. im off to see if any ones got a front bearing on fleabay just in case .. thanks lud
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S/h bearings are sure to be a waste of time. New ones don't cost the earth.
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unless the tester can feel any excessive roughness or more than allowable movement in the bearing then you cant fail them,so dont take it that they are okay
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S/h bearings are sure to be a waste of time. New ones don't cost the earth.
who mentioned second hand bearings?
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Sorry, misunderstood reference to fleabay..
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hi, room it seems the wheel bearing lobby were right, i topped up the transmission with oil but the noise is still there ... how deceptive car noises can be, i drove around today on some bendy roads and the noise definitly gets quiter on right handers so i assume its the front nearside bearing.....thanks all again .. zoo
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Listen carefully though zookeeper, you don't want to change the wrong one!
With rwd you could jack the front wheels up and spin them to listen to the bearings close to, but you can't do that with fwd. Might be an idea to get a car-literate friend to hgive a second opinion on the noise and which side it is.
Edited by Lud on 25/04/2008 at 18:44
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thanks lud... i think i will get swmbo'd to get behind the wheel whilst i have a good listen sitting in different seats in the car to see if the noise can be better detected ..cheers
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hi room, update... seems the wheel bearing ns/r was over tightened , i unassembled everything re-greased and torqued up to the correct value.... 200 miles and its still silent ... result
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Well done. Must be a bit of a relief not to have to get a new gearbox...
I must say this thread underlines once again how misleading noises can be, how difficult to pinpoint.
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Mmmmm.........very good, but are you quite sure there are no local cats which have mysteriously disappeared in the last couple of weeks ? ;-)
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