Diff whine?

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David Gilman

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Hello from Devon: Can anyone please advise? I bought my 1999 FR1 in 2003 and other than the sun roof completely rusting and leaking (now sealed with mastic!) the Landy has driven perfectly. 69+K miles. Long runs, not short. Just MoT'd but needed a new cat convertor and two new rear tyres (Bridgestone whose rims were JUST worn enough.) Two weeks later a dull whine increasing in acceleration - stable at cruising speed - then whines down when I slow down. Is this my diff? Would really appeciate any help. Thanks in advance.
 
Bob is gay option?

Different tyres can cause funny noises like bearing failure. Also you can get your symptoms if tyre sizes differ from fronts, even just differences in wear levels between front and back.

True story. Council van goes to garage with bearing noise. Young mechanic decides its definitely propshaft bearing so replaces it. Bills customer, customer returns saying same noise still. Another young mechanic decides right its definitely wheel bearings so four corners were renewed. Customer billed again and returns shortly after.

Complaint submitted, the most experienced engineer in the company is assigned the vehicle. Takes it on a test drive and returns to workshop.

Swaps tyres front to rear.

Noise disappears.

That's the difference between the plug in and replace parts modern fitter compared to the older generation who has the experience of pure mechanical fault finding.
 
Shanec said:
Bob is gay option?

Different tyres can cause funny noises like bearing failure. Also you can get your symptoms if tyre sizes differ from fronts, even just differences in wear levels between front and back.

True story. Council van goes to garage with bearing noise. Young mechanic decides its definitely propshaft bearing so replaces it. Bills customer, customer returns saying same noise still. Another young mechanic decides right its definitely wheel bearings so four corners were renewed. Customer billed again and returns shortly after.

Complaint submitted, the most experienced engineer in the company is assigned the vehicle. Takes it on a test drive and returns to workshop.

Swaps tyres front to rear.

Noise disappears.

That's the difference between the plug in and replace parts modern fitter compared to the older generation who has the experience of pure mechanical fault finding.
Click to expand...

Thanks: I have swapped rear to front - and have two new on rear - this was after the noise started though.
 
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