Noisy rear end. - Subaru Outback - Subaru Outback Forums
 
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post #1 of 4 (permalink) Old 04-01-2011, 01:02 AM Thread Starter
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Noisy rear end.

Hi all, just joined. Have got great info on issues I have been having.
I do have a recurring and annoying noise coming from the rear transmission parts of my '97 OB, she has 140,000 on the clock.
When moving at steady rpm and speed there is a whine form the rear end, sometimes it sounds more like a growl. It leaves when further acceleration is introduced. It seems worse between 45mph and 60mph. I had wheel bearings done, the left side half shaft is new the differential and transmission where serviced ( fluid and filter). No metal in fluids. Noise continues!!!?? Any thoughts.
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post #2 of 4 (permalink) Old 04-01-2011, 01:21 AM
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So the noise is coming from right underneath you ? or, the rear end ... I'm not clear on that.

Also what CV was replaced, front or rear ?

This is an Automatic correct ?

Did you change the Trans fluid and the front and rear diff fluid ?

Does it sound more like a bearing noise or a gear whine ? ... both can be affected by torque [throttle] but they sound different.

Here's a little writeup on drivetrain noise.

Diagnosing Drivetrain Noise
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post #3 of 4 (permalink) Old 04-01-2011, 09:50 AM Thread Starter
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The sound is behind me. All the work was done to the rear. The trans fluid and rear diff. Fluid were changed. It is an AT. It's sounds more whine than growl. Thank you.
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post #4 of 4 (permalink) Old 04-01-2011, 10:09 AM Thread Starter
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Is it possible it could be the drive shaft. I get a clunking noise from it when you shift from reverse to Drive and vice versa. I was also wondering, if it is the differential is it best to replace the whole thing or have someone rebuild. I can do many things myself but definetly not opening a diff.

It's snowing again!!
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