Front diffy? tranny? cv axle? help!
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This is a discussion on Front diffy? tranny? cv axle? help! within the Transmission & AWD forums, part of the Tech & Modifying & General Repairs category; My 02 wrx started making a nice grinding/clunking noise up front. It all started when backing out of a parking ...

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    Front diffy? tranny? cv axle? help!

    My 02 wrx started making a nice grinding/clunking noise up front. It all started when backing out of a parking spot. Before I parked I noticed nothing, but when I started backing up it made some nasty clunking noises and felt like it was binding up. It did it a little bit in first also but after that it didn't bind up any more, just makes a scraping noise. The noise doesn't stop when its in neutral or when I Have the clutch in. It keeps doing it when the car is off and rolling. Btw its a brand new clutch. Both of my cv axle boots are torn I don't know if that would be anything but they definatley need replaced. Any ideas??

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    OMG WTF MainFrame's Avatar
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    Bad CV joint makes a clicking noise when turning. A worn out center diff will make a grinding noise when turning sharp and feels like the drive-train is binding up. You might need to get the car up on a lift and try turning the wheels independently to see where the problem is.

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    Yes ill definatley have to get it off the ground to check it out. The tranny fluid is full and clean so there's a good sign. The noise doesn't change at all depending on how sharp I turn so I'm kinda starting to think maybe its a wheel bearing? Thanks a ton!

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    OMG WTF MainFrame's Avatar
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    Bad wheel bearings make like a humming noise when coasting in a straight line.. I'm dealing with that right now.

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    Have you figured out this problem yet, or does anyone else know what it is? i have the same exact problem it sounds like and the mechanic doesn't even know where to look.

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    I see this post is from july, but it just happened to me. Just like you my car was fine prior to me backing up. I deliver pizzas and i was backing out of a customers driveway when i noticed it. My garage i usually go to wont even attempt to tear in to it and see whats up. They said it was transmission related. They also said they were able to duplicate the noise by turning the axle with the wheels off. I am having a second opinion on it tomorrow and will relate that info.


    Quote Originally Posted by subiedoo7 View Post
    Have you figured out this problem yet, or does anyone else know what it is? i have the same exact problem it sounds like and the mechanic doesn't even know where to look.

  8. #7
    Registered User nsibanez's Avatar
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    I've seen an axle so bad that it binds and grinds whilejust driving. As soon as you get it rolling it was better

  9. #8
    Registered User jamie007's Avatar
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    Oh no! I just started having this issue with my 09 WRX. When I make a slow sharp turn, either forward or reverse it almost feels like I have a flat tire. Like the front end is fighting the back, something is binding linearly, like every half rotation of the tire... I've always rotated my tires properly, the tires I have on their now only have like 8k miles on them all the same wear. And my clutch (new stock) only has like 12k miles on it. What was the fix? Did you guys need a new center diff?
    Jamie
    2009 WRX Prem Hatch:
    Cobb stage II, Kartboy SS, SPT Catback, Cobb DP, WL Sways, Perrin/AVO Endlinks, Conti DWS

    Previous rides:
    99 Civic Si (RIP), 2004 WRX, 2006 STI Cobb stage II

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