humming after 40mph or so
#1
humming after 40mph or so
Ok I have a 09 XC90 3.2 AWD.It has 145k and well maintained.The last month or so I hear a humming sound at cruising speeds.A bearing of some sort?I jacked my car up to spin the front wheel but you cant spin it,even in neutral.I just dont know where its coming from,seems to be getting worse.Any sugestions on how to find where its coming from and are there common problems with my vehicle at this mileage?
#3
Ok I have a 09 XC90 3.2 AWD.It has 145k and well maintained.The last month or so I hear a humming sound at cruising speeds.A bearing of some sort?I jacked my car up to spin the front wheel but you cant spin it,even in neutral.I just dont know where its coming from,seems to be getting worse.Any sugestions on how to find where its coming from and are there common problems with my vehicle at this mileage?
#4
Don't think Smokey's problem will tell you what's up with your car - only what was going on with theirs. If you have a similar noise at speed you should start doing your own investigating - Does the sound change when driving a sweeping left hand turn vs a sweeping right hand turn (say at 40-50 MPH)? - if so, I'd suspect a wheel bearing on an outside wheel Does the sound change when you lightly apply the brakes? does the sound change when you apply power or lift off the throttle? If so, I'd suspect an axle. Not sure if you can engage AWD on command, if so repeat the steps above. engaging AWD will put stress on the rear axles and drive shaft bearings. Have you tried a front/rear tire rotation to see if the sound changes in the cabin?
#5
Don't think Smokey's problem will tell you what's up with your car - only what was going on with theirs. If you have a similar noise at speed you should start doing your own investigating - Does the sound change when driving a sweeping left hand turn vs a sweeping right hand turn (say at 40-50 MPH)? - if so, I'd suspect a wheel bearing on an outside wheel Does the sound change when you lightly apply the brakes? does the sound change when you apply power or lift off the throttle? If so, I'd suspect an axle. Not sure if you can engage AWD on command, if so repeat the steps above. engaging AWD will put stress on the rear axles and drive shaft bearings. Have you tried a front/rear tire rotation to see if the sound changes in the cabin?
#7
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