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Subaru Legacy, 98, 2.5, automatic, 166,799 Denver, Co
03-17-2015, 08:55 AM
Post: #1
Subaru Legacy, 98, 2.5, automatic, 166,799 Denver, Co
When I reverse and turn the wheel, there is a metal to metal screeching while im in motion. It stops when I switch to drive. it is an AWD and a friend of mine said he put oil thru a tube towards the back differential. The front end had a stick to check and it was full. That did not help. Its not the brakes and it seems like the sound comes from the center of the carriage, compared to one of the tires.
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03-17-2015, 10:39 AM
Post: #2
RE: Subaru Legacy, 98, 2.5, automatic, 166,799 Denver, Co
I've worked on a few of these over the years and my best guess is the age of the car is starting to set in (17 years old) and you have something that has broken off due to rust. Most likely an exhaust hanger or heat shield is the culpret and you will have to get under the car to find it. (properly supported of course) I'd start with using a helper to duplicate the problem while you stand or squat next to the car so you can get a better feel for where the sound originates. Once you narrow it down you can jack the car up (use jack stands for support) or put it on a lift. With things like this diagnosing (finding) the problem first will tell you what needs to be fastened or replaced.

The rear differential on that car is rubber mounted to the chassis and only the CV shafts move with the suspension, however the forward mount can break and cause the nose to hit the floor. If that happens it will be a low growling sound. If you want to check the oil back there use the top / fill hole with the square nut facing rearward.

If you have the option of using a lift then by all means do it. That's so much easier and while it's up you can double check the rest of the car for signs of age, which may play a roll in how much you are willing to spend on the vehicle.

Let us know what you find.
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