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        General >> Problems >> Squealing
        
(Message started by: TomP on Mar 19^th, 2009, 11:29pm)

Title: Squealing
Post by TomP on Mar 19^th, 2009, 11:29pm

12V 2.9 Estate

Last couple of weeks started getting an intermitent squealing. Think it's from the back but not sure. Tends to only do it after the car has been going for a while (10-20 miles) then it becomes more apparent. If cruising downhill (no accelerator) say about 50mph and it starts squealing, if I touch the brakes lihtly the noise stops. Release the brakes and the noise starts again. Other than that the noise comes and goes

Wheel beraing or brakes related? I did have the rear brakes changed about 3 months (2000 miles) ago, perhaps I should take the car back?.

Title: Re: Squealing
Post by Jonnycab on Mar 20^th, 2009, 12:41am

Sounds like a wheel bearing..........Squealing usually means the bearing has dried out & is getting red hot......& may even be grinding into the hub.

If it's squealing really bad, then you are pretty close to total bearing seizure/wheel lockup, so I'd get it checked out ASAP :)

Title: Re: Squealing
Post by Simmo on Mar 20^th, 2009, 7:15am

[]. If it is the wheel bearing it needs sorting ASAP.

Title: Re: Squealing
Post by Snoopy on Mar 20^th, 2009, 7:29am

I agree MOST URGENT get it sorted ... Please don't ignore it it could end with a catastrophic failure ....and a lot of damage .
Read my write up on the rear wheel bearing replacement , that is EXACTLY how mine started... and cost a mint because I had to buy new HUB.... BTW I do have a spare one lying about used but good !

Title: Re: Squealing
Post by TomP on Apr 10^th, 2009, 11:24pm

Haven't used the car for a few weeks as not been able to take to a garage.

Had to use the car today on a long journey (even though you gave advice to check out asap!). It seems to me the noise is definitely brake related. I drove for about 40 motorway miles before any noise. Then got into traffic, stopping and starting, when I started to notice the noise for periods of time, particularly after pulling away. The noise mostly disappears after a couple of minutes and ALWAYS stops if I touch the brakes OR if I lift the handbrake slightly, but the noise immediately reappears after releasing the braking.

If something in the braking system is somehow "sticking" what is it likely to be?

N.B. the nosie is perhaps more like a very high pitched hum as opposed to a squeal!

Title: Re: Squealing
Post by gozz on Apr 10^th, 2009, 11:34pm

REAR WHEEL BEARING :o
GOZZ.

Title: Re: Squealing
Post by Highlander on Apr 11^th, 2009, 12:23am

Losing a wheel at 70mph wont be a pleasant experience.

Title: Re: Squealing
Post by wojtekor on Apr 11^th, 2009, 12:46am

why do some people ignore failures...

Quote:

Losing a wheel at 70mph wont be a pleasant experience.

not only for him i'm afraid. sorry but knowing that there's something seriously wrong with your car especially whilst being advised not to use the car until sorting out the problem is obvious stupidity. you may ignore your own safety but when on road you're a danger to others...

Title: Re: Squealing
Post by Jonnycab on Apr 11^th, 2009, 12:52am

That's what bad wheel bearings do....start making a noise after a few miles because they are getting hot, but then go silent when you apply the brakes/handbrake because the brake is centralising the hub & taking the pressure off the dried out/shot bearing.

You have had a warning of imminent bearing failure, so take it as a godsend ;)....I never had a warning when my R/O/S bearing failed at 80mph on the M25 a few years ago :o.....that is something that I wouldn't like to experience ever again ???

But...if it is as you think, brake related, then if the brakes are dragging slighly, then this could be down to a sticking caliper :)

Title: Re: Squealing
Post by Snoopy on Apr 11^th, 2009, 8:04am

Your description is you have already been advised is a failed/failing wheel bearing .
Take the advice GET IT FIXED for your safety and also of others ..
Your symptoms are exactly as my own experience, as I documented on the web site .

Title: Re: Squealing
Post by joe-satch on Apr 11^th, 2009, 8:38am

tomp,please take the advice from the people on the site,they know what there talking about,if your problem is brake related....good..thats fine an easy fix....but if it is a rear wheel bearing and its close to failure...you will be in all sorts of trouble..and none of the people on this site want that...so for your own well being and the well being of others....get that wheel bearing replaced. :). ;).

Title: Re: Squealing
Post by rich1 on Apr 11^th, 2009, 9:00pm

i agree with all thats been said above , mine started the same way and i ignored it and then one day on the m11 ....bang !!! shocked the life out of me , and emptied my sky rocket of over 300 quid (that shocked the life out of me too).......seriously take the advice and get it sorted a.s.a.p

Title: Re: Squealing
Post by Tons_of_fun on Apr 13^th, 2009, 5:29pm

Speaking from the voice of experiance get it seen too quickly. I ignored mine for a week after it started squealing before it finally collapsed :o. Had i attended it sooner i would of got away with just a bearing instead of a whole hub assembly ( very expensive)

Title: Re: Squealing
Post by joe-satch on Apr 14^th, 2009, 8:24am

lessons to be learned...so tomp should get his repaired NOW.

Title: Re: Squealing
Post by kev2scorps on May 7^th, 2009, 7:00pm

Hi all,

had a slight squeak / whistle from back right rear wheel at low speed a few years ago, especially when turning, e.g. when going around corners and up / down ramps in multi-storey car parks. After reading all the warnings on here, I took off the hub and hub carrier - bearing was in bits inside - lumps missing on inside - literally!

Last week, intermittenet squeak / grumble at low speed, back left wheel, sounded very bad one morning, bearing had been replaced only 24000 miles previously, mentioned it to the mechanic at work who had a look at it. Slight lip on disc - filed off - car sounded fine... for 2 days! Intermitent squeak / grumble returned. 8 hr journey to do on Saturday, so was concerned. The mechanic at work looked at it again - rear of car up on axle stands, engine on, traction control off, 3rd gear, wheels spinning up in air, stopped drivers side rear wheel with a piece of timber wedged against the floor (be careful if you try this), listened to rear left for roughness, did the reverse to listen to drivers side. - Rear left / passenger side wheel sounded a bit rougher than right / drivers side. Off came wheel, checked brake disc for run out - yes, it was running out. Brake caliper, pads, brake disc, and finally hub and hub carrier all removed - bearing was very very rough. Disassembled hub, carrier bearing races, seals and shells. Inside bearing smaller shell literally had lumps missing! Larger shell was badly pitted, grease looked very old / tired. The mechanic was shocked at how quiet the bearing had been, no hum at 50 - 55mph as would normally be the case in most cars and guesses that water must have been getting in past the seal and breaking down the grease. He has kept the bearing to show future apprentices. New bearings and brake pads. Brake disc checked for run out - none! The worn bearing must have been causing some misalignment of the hub, brake disc and wheel - causing intermittent scraping of brake pads on disc. Confidence restored for another few miles now.

I guess that all this just goes to reinforce what all the guys on here have been saying about unusual rear wheel noise - investigate the bearings - very, very often they will proove to be the culprit.

Kev.

Title: Re: Squealing
Post by freerein on May 12^th, 2009, 11:09am

I have had the same problem recently - though the issue was partly to do with the wheel bearing, it wasn't the only(nor the main) problem. The main problem is the driveshaft and CV joints - both ends of the driveshaft have CV Joints and gaitors, both gaitors were split and dry as a bone which is what was making the noise

Title: Re: Squealing
Post by TomP on May 12^th, 2009, 3:46pm

Took the advice and kept the car off the road as the MOT was getting closer and I had no time to get the car looked at.

Car passed the MOT and asked the garage to check the rear bearings, they could find nothing wrong, although the wheel/hubs weren't removed. Garage also took the car for 2 or 3 test drives but couldn't hear the noise.

I've now got the car back and have driven it a couple of times, with the very occasional high pitch squeal.

Is spinning and rocking the wheels (while raised from the ground) a reliable enough way to check the bearings or does the wheel/hub need to be removed?

I live in Hampshire and am commuting to Scotland each week for work at the moment (tough job market!).....not tarvelling in the Scorpio!....so finding it difficult to find time to get this sorted.

Title: Re: Squealing
Post by Jonnycab on May 12^th, 2009, 4:13pm

When it starts squealing, then check the wheel centre. If it's hot, then it's indicative of either a worn bearing or a dragging brake :)

Title: Re: Squealing
Post by freerein on May 12^th, 2009, 4:13pm

Did you get any advisories from the MOT?

Title: Re: Squealing
Post by TomP on May 12^th, 2009, 4:50pm

Thanks guys, really appreciate your help.

I showed the garage the thread from this Forum so they could see the bearing is a common problem. No advisory notes at all. I was speaking to the MOT tester as he was testing and asked him to see if he thought the bearings were OK. Spun the wheels and rocked them but could find no problem. I left the car with them for a week so they could drive it around which they did a few times but of course the noise didn't happen!

Perhaps I will have to bite the bullett and take it to have the hub dismantled for it to be checked thoroughly. Garage suggested leaving it until the noise happened more frequently so it would be easier to diagnose, but with all the comments and suggestions her, I am reluctant to wait.

Still odd to me I can drive it for 50 miles with no noise, then, it starts up for a few minutes......generally after having to slow stop at junctions.....and braking.

Title: Re: Squealing
Post by Tompion on May 12^th, 2009, 8:06pm

I find the best way to check is to remove the calliper & disc, unbolt the carrier but leave the centre nut tight. You can pull the carrier out far enough to revolve it around the drive shaft. That way you’re just turning the bearing not the diff – any clicking or roughness the bearings need changing.

Dave

Title: Re: Squealing
Post by Jonnycab on May 24^th, 2009, 1:46am

Some more news on failing wheel bearings ;)....

I noticed an intermittent squeak in the R/O/S wheel on Tuesday. Never heard it before, so thought I'd leave it 'till the weekend & have a look.

Looks like I may have left it too late ::)....The brake pads & caliper are fine & the wheel didn't seem to have any movement, but from previous experience, it did sound like a bearing squeak.

Undid the hub nut......but could I pull off the hub ?....No way ???....something was definately stuck somewhere. So I removed the whole lot & got it on the bench.

With a couple of long bolts, nuts & washers, I eventually managed to push out the hub from the carrier, but with the inner part & bearing cage of the outer bearing still attached to the hub ???

http://i70.photobucket.com/albums/i101/jonnycab/P1010082.jpg
Notice that the bearing cage is also split...not sure if this happened when removing the hub from the carrier, or it was already like it :-/

Anyway, the inner part of the outer bearing is still well & truely stuck onto the hub (probably welded on).

http://i70.photobucket.com/albums/i101/jonnycab/P1010086.jpg

I've tried heating with a blow torch & also tried freezing it for a few hours in the freezer, but there is no way it's gonna budge. I'm gonna try to carefully angle grind it off tomorrow, but even if I get it off without damaging the hub, the bearing may still have scored the hub too badly to be able to fit a new bearing :-/

This bearing has only been making a very occasional squeak for 4 days & it's looking like it's already done the hub for good ???....so it's most probably a new hub as well as new bearings ::)

Title: Re: Squealing
Post by Snoopy on May 24^th, 2009, 7:41am

JC had the very same problem..... which is how I ended up with a spare hub .. Soak it in the usual stuff Wd or Duck oil for a couple of hours then .... patience is required ( seldom found in women and never in men !
Get a small cold chisel and working through the two holes you can tap the edge of the bearing cap... It took me over an hour but I did do it I used the bottom edge of the cap to tap first as you cannot get it on the top edge to start with. You end up with http://www.drich2422.ukfsn.org/Stub%20axle%20Pictures/Pict0007.jpg

if you are careful.

Good luck !

Title: Re: Squealing
Post by Jonnycab on May 24^th, 2009, 11:26am

Thanks for the advice Dave, but my patience is starting to wear thin, so decided on the grinder method ;)

I carefully cut it down as far as I could without touching the hub, then gave it a swift whack with hammer & chisel......& voila !!!!....it cracked apart :D......only took me 10 minutes ;)

...& the hub looks fine enough to re-use as well :)

Title: Re: Squealing
Post by Tompion on May 24^th, 2009, 4:39pm

I've mentioned before that's the fit both mine were as standard, I had to grind them off. The replacement bearings (including genuine ford ones) were the same fit.
The whole lot had to be assembled of the car.
There was nothing wrong with it, just the way it was made (I carefully inspected it with an eyeglass, original machining still visible) - so short of a faulty batch getting through it would seem tolerances may have been changed over the life of the production.

Others have said there’s were as tight.

Dave

Title: Re: Squealing
Post by gozz on May 24^th, 2009, 10:38pm

The inner races ARE a press fit onto the hub,it's logical that they should be,if they were not,movement would ensue even though they are trapped tight longitudinally.
They are removed by a bearing separator puller.
GOZZ,