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differential noise under load - '98
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Old 08 Nov 2008, 02:24 AM   #1 (permalink)
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differential noise under load - '98

Okay - forum test... anybody had issues with differentials going out (or on their way) in an older 5-spd Impreza (no mods, nothing special)? We are in need of new clutch so this is time to balance the benefit of replacing diff. at same time.

I had a '62 bug that growled for a couple years before it died. Wonder if I should let this go the way of nature or do it now...

thanks in advance!
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Old 08 Nov 2008, 05:50 AM   #2 (permalink)
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Re: differential noise under load - '98

Hi Mike if its a low whinning noise could be running low on diff oil when was it last changed????? also any seals leaking??????and also drain the diff oil thats in it and if broken bits fall out you know the diff needs to be replaced id go with renewing oil first cause it might be just low on oil..................
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Old 01 Sep 2009, 03:05 AM   #3 (permalink)
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Re: differential noise under load - '98

Okay - new differential in place. Cha-CHING! =|

Now a split boot... any info on easy replacement of this ten dollar part?
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Old 01 Sep 2009, 05:27 PM   #4 (permalink)
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Re: differential noise under load - '98

Quote:
Originally Posted by mwold View Post
Okay - new differential in place. Cha-CHING! =|

Now a split boot... any info on easy replacement of this ten dollar part?
Is it outer cv joint at wheel side or inner cv joint diff side?
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Old 10 Sep 2009, 03:02 AM   #5 (permalink)
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Re: differential noise under load - '98

Inner - we ended up just replacing axel since part was $175 - and labor was $125. Saves having to pull it, replace boot and grease.
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Old 05 Jul 2011, 06:37 AM   #6 (permalink)
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Re: differential noise under load - '98

Read and listen to this and see if you like the sound. It would seem that the timing chain tensioner guides make noise, but if you read the comments below, there are few others who have had a similar problem and solved in different ways. I've been around cars for 50 years, we understand that the harmonics can come from one place and another and resonate. And 'the Mustang, but the 4.6 engine is the same. Or visit the Seattle auto repair shops for more info.

Last edited by kidashley25; 04 Sep 2013 at 05:45 AM.
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Old 09 Jul 2011, 02:27 AM   #7 (permalink)
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Re: differential noise under load - '98

Itís your diff every time you release your foot of the acceleration in every gear it will make a racket. Jack the car up from the front and back put it in gear and check the play in your rear diff bearings by turning the wheel from left to right. where the drive shaft goes in it will have a lot of free play if you manage to spin it hard enough you will hear the racket or better still do the same thing by putting it on a 2 poster ramp get some one to start it put it in gear but a screw driver any where on the diff and then any where on the gear box see which one is louder. if its your clutch bearing it will still make noise when its stationary and check for oil leaks on the diff it might be empty 99 percent its the diff takes to much beating lack of oil change.

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