Humming/whirring Sound Coming From Front Lh Side - Not Wheel Bearing!

[Deanne124]

Hi,

Recently, I purchased a 2010 Nissan Dualis (FWD). The vehicle was being sold by a panel beater who had purchased the car as a repairable write off and carried out the repairs himself. I was aware of this right from the start and asked to see pictures of the damage. The seller showed me pictures of the damage and and it was insignificant. I made the mistake of not taking the car for a long test drive. Anyway, driving home in the vehicle after the sale was finalised I noticed a whirring/humming noise coming from the front LH side. This noise was particularly noticeable when the car was doing speeds of 75-90kms.

My Dad is mechanically minded so I took him for a drive in the car. His thoughts were that it was the front LH wheelbearing. I rang the seller who told me that both LH and RH wheelbearings had been replaced and the parts were taken from a Nissan Dualis (Stat Write Off) with only 13,000kms, so he was certain there was no problem with the wheelbearings. He asked me to get my local Nissan dealership to provide their opinion. I took the car to my local Nissan dealership and the mechanic advised that he thought the problem was the LH wheel bearings. I booked the car in and they replaced the left side wheelbearings. This did not fix the problem. My Dad has replaced the whole left side drive shaft which hasn't made any difference.

Does anybody have any ideas on what the problem could be?

I should also point out that the tyres have plenty of tread and have been switched around to make sure that they are not the problem.

[Trex]

It's could be as simple as an alignment issue. Or the type of tyre that the car has.

[niZmO_Man]

What tyres are they? Could be wheel alignment.

[Deanne124]

Thanks for your suggestions, will certainly check that out. It has bridgestones on the front and coopers on the back

[niZmO_Man]

It has bridgestones on the front and coopers on the back

Need more information than that mate.

Tyres can easily be rethreaded (bad). How old are they (look on sidewall for some codes)? Condition of tyres?

When I first got my R31, it had steering wobble at highway speeds and noise. Changed tyres + toe alignment = fixed.

[Ben C34]

Swap tyres around and see if the sound moves.

[scotty nm35]

Try a new set if possible, I have changed many a wheel bearing due to tyre noise.

The only other logical solution is both times the wheel bearing was pressed onto the hub by the outer shell, something I see far too often. It is ruined before it's put back on the car. I would hope Nissan didn't put the apprentice on the job...

[GTR-N1]

Just a check > Before swapping tyres or rotating wheels, upon inspection the flat section that meets with the hub isn't painted is it? If so, scrape/burn it off.

[luke gtr]

Will probably be tyres.

Scalloped tyres can create near identical Boise to bearings.

A decent mechanic should be able to check and let you know.

[scotty nm35]

If one of the front calliper pistons is seized it can load up the bearing and make a similar noise.