Why do Subaru wheel bearings go bad?
The main reasons that a wheel bearing fails are: Impact damage or poor road quality – all impacts from driving through a pothole, driving over speed bumps or hitting the curbstone can damage a wheel bearing and reduce its lifespan. Poor quality wheel bearing – a wheel bearing is continuously under enormous pressure.
Why is my car rattling when I accelerate?
If you hear a pinging or rattling sound when accelerating, low-octane fuel could be the cause. Pinging (also called pre-ignition or detonation) can also be the result of carbon deposits, a bad knock sensor, overheating or incorrect ignition timing.
What causes wheel noise on Subaru Outback 2.5?
My 2011 Outback 2.5 Limited got a mild rear end collision at 109k miles. Then I put new tires at 112k miles. Now at 115k miles I am hearing a wheel noise that starts at 40mph. Not sure if the collision could cause hub bearing failure. Nevertheless, I am reading from other posts that hub failure is common between 90k to 120k miles on 4gen Outbacks.
Where is the bad bearing on a Subaru Outback?
If it gets louder turning left, the bad bearing is on the right side of the car. It may not be bad enough yet for you to determine front or rear yet. Subaru WBs have a range of confusing failure modes it seems.
Where does the tire noise come from in a Subaru?
If it is a bearing, it will get louder when is gets side loaded. Do a slalom at the lowest speed where you can hear the noise. If it gets louder turning left, the bad bearing is on the right side of the car. It may not be bad enough yet for you to determine front or rear yet. My other car is a Subaru….
Is the wheel hub hotter on a Subaru Outback?
No wheel hub is noticeably hotter than its partner (realizing that the fronts get hotter due to braking), and the car doesn’t appear to handle differently, nor get significantly worse mileage compared to this time last year (appx high 23 to high 24 mpg depending on tank and driving conditions).