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Discussion Starter #1
Can anyone help please


I have a Sorento XT 2006 2.5 Dieselwhich I use for towing a twin axle caravan



The car has developed a whining noise which seems to be from the rear axle area - moreevident at 30mph - 40mph &50mph - also more evident on "overun" than in drive and under load



NK Derby have had a Chassis ear on the car - £90 for the pleasure and now say the car needs a replacement diff. and has a stiff UJ joint



NK quotedcost at £2000.00 to repair !!!



Does anyone know of a local company to Derby that do refurbed diffs and are able to supply and fit at a reasonable cost ??



Any help appreciated



Regards
 

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Hi Arby

Got exactly the same problem as you with my 2007 XE with 24700miles on it.

Changed all the fluids in the diffs, gearbox and transfer box, greased the propshafts front and rear, mine only has grease nipples on the sliding part of the rear prop, the UJ's are sealed units with no grease nipples. The front prop has grease nipples on the sliding part and on the front UJ the rear UJ on the front prop is another sealed unit. All the UJ's are straked in they do not have retaining circlips so not sure if a prop specialist can change these if they require replacement.

I added Molyslip to the diffs with the new oil and the whine has reduced but it's still there.

Dealer diagnosed the rear diff and estimate 2k to repair/replace.

How have you dealt with yours?

Colb
 

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Obtained a second opnion today from a local transmission specialist, test drove and then jacked up and ran the car, diff checked out by ear using a long screwdriver on the diff housing. Verdict pinion bearing causing whine, the larger of the two in there he reckons.
Quoted me in region of £500 to sort with new bearings so about a quarter of what Kia wanted although their 2k was for a new diff assembly.
Specialist very surprised bearing has gone bad considering the mileage of 24700.

Will be using the specialist to sort the problem after the next Bank Holiday.

Colb
 

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Discussion Starter #4
Hi Colb

Thanks for your mail - it sounds a carbon copy of my fault - Local Kia agent Derby quoted me £2k also to repair i had the rear difff rebearinged and all the oils changed like you but whilst improved was still there.

As I tow a caravan I wasnt happy with this knowing it would only get worse so I have p/x and have the new KX3 - we will see how we get on with this. I know how you must feel particularly on your car that has done so little mileage but it seems to be a recurring fault with the transmission.

You would have thought Kia would have sorted this problem wouldnt you

Thanks for contacting me - at least it may warn others of the potential problem.

Best Regards

ARBY
 

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Discussion Starter #5
£500 is about right - I had my diff rebuilt and bearinged for £400 - better but no cured


Arb
 

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You paid for a rebuild and it didn't cure it? Take it back??

New diff from kia used to horrendous money, now down to around £650, so £2k quotes are not taking into account the new lower diff pricing.
 

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Murphwiz

Dealer quoted me 1500 for a new diff and listed the part number + 700 labour on their diagnosis report, smelling a rat I reckon if threre has been a change in price.

Arby traded his car in after the repair for a KX3

Colb
 

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Problem now solved, pinion bearing was trash at just under 25k miles.
All diff bearings changed for same make as fitted to Toyota Land Cruisers as opposed to using Kia bearings.
£714 with the VAT added to get rid of the noise, car back to normal.

Colb
 

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Hello
I have the same problem, howling rear diff I'm going to do all diff bearings using the Toyota land cruiser ones, so with that I'm mind could you point me in the right direction as to the right land cruiser bearings to purchase i.e. Is there a specific model / year.
Many thanks
 

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I recently overhauled mine using kia parts, the three large bearings were about £50 each, the smaller pinion slightly cheaper, the crown wheel and pinion were £250 for the set. a couple of hours to remove it, about three hours to strip and rebuild it, then refit.
 

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I recently overhauled mine using kia parts, the three large bearings were about £50 each, the smaller pinion slightly cheaper, the crown wheel and pinion were £250 for the set. a couple of hours to remove it, about three hours to strip and rebuild it, then refit.
How did you remove diff I have shafts out all bolts undone but only comes out about 1inch just seems to big to come out,is there any special way it has to come out thanks david email is [email protected] thanks david
 

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dont forget the oil fill procedure on these is different, you have to jack up the back end, or overfill it via the level bung. kia put the bung in the wrong place, there was a bulletin knocking about.
 
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