noisy drivetrain

[Davy Shearer]

Hi folks
The problem i have is a noisy drivetrain i,ve checked the wheel brgs etc and can,t find any obvious faults the noise sounds like the worn diffs of old more noisy under load and on the overrun any ideas .
Many thanks

Sorry its a 2008 xc70 d5

[JonnyA]

Hi
probably not a lot of help but my 08 xc70 has had a noise that has steadily got worse over the last 18months. My noise, a bit of a rumbling drone, tends to come and go depending on road speed being worst at around 40mph

I have always heard it as coming from the rear end and it has sounded a bit like a bearing going...initially I put it down to a swap to winter tyres but the change to summers made no difference. the garages had been unable to pin point its source but I had the rear bearings checked but its not them (by fitting a new one) and have been advised by a both an indy garage and a transmission specialist that the rear diff is the culprit.
now bracing myself for the cost of a refurb...

all the best

[barbershores]

My 2002 volvo v70xc started picking up noise.
Couldn't tell where it was coming from. It ended up being the right front axle constant velocity joints were shot. Replaced, and it was fine for a few months. Now, the noise is back and getting louder, but this time it appears to be coming from the left. So, the other front axle is probably due for replacement. Now, 168,000 miles. I replaced the one axle myself. It was a lot of work, but parts were just $135 including shipping from an online parts supplier. Replaced the entire axle. Took 4 hours on jack stands in my driveway. Biggest problem was that I think the guy I purchased the car well used from, had replaced the struts with ones that were too long. I purchased the entire axle from buyautoparts.com. Their prices have been slowly dropping over time. Currently, that part is $122.75. http://www.buyautoparts.com/buynow/2...0-03443_N.html

Reading on forums, these front axle constant velocity joints wearing out and getting noisy is quite common on volvos with a lot of miles.

There are several very informative videos available on youtube such as: http://www.youtube.com/watch?v=9f14N5Tl9Hk to give you an idea of what the level of work that is necessary to change one.

Hope that helps,

Barbershores

[Sandpit]

Originally Posted by JonnyA

Hi
probably not a lot of help but my 08 xc70 has had a noise that has steadily got worse over the last 18months. My noise, a bit of a rumbling drone, tends to come and go depending on road speed being worst at around 40mph

I have always heard it as coming from the rear end and it has sounded a bit like a bearing going...initially I put it down to a swap to winter tyres but the change to summers made no difference. the garages had been unable to pin point its source but I had the rear bearings checked but its not them (by fitting a new one) and have been advised by a both an indy garage and a transmission specialist that the rear diff is the culprit.
now bracing myself for the cost of a refurb...

all the best

Hi Jonny I have the same problem on 2008 xc 70 118K what was the damage?