Rear-Differential Needs Replacement
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Rear-Differential Needs Replacement
Shortly after receiving my car back from service (replaced a shift fork in my transmission) I heard what I thought was the infamous transfer-case "death whine." After looking at the invoice for my transmission repair, I saw they put some different GL4 fluid into my transfer-case (was NOT the part number for DIAQUEEN). Adding 2 and 2 together, I thought I had it pinned as the transfer-case and thought it was THEIR fault after using the wrong fluid.
To make a long story short, I brought my car in for diagnosis, and lone behold, it is actually the rear-differential? What could cause the rear-diff to fail? I haven't heard of many going "bad?" The fluid was replaced at 3k miles with DIAQUEEN, other then that, it was untouched.
The dealership is going to cover it (they said this is my last repair before my car is "red flagged." Yeah... We'll see about THAT!). Unfortunately, there are "none in the country" and apparently they have none available in Japan either, as they gave me a tentative date of "THE LAST WEEK IN NOVEMBER!" (2½ months from the point I brought my car in) WTF?
To make a long story short, I brought my car in for diagnosis, and lone behold, it is actually the rear-differential? What could cause the rear-diff to fail? I haven't heard of many going "bad?" The fluid was replaced at 3k miles with DIAQUEEN, other then that, it was untouched.
The dealership is going to cover it (they said this is my last repair before my car is "red flagged." Yeah... We'll see about THAT!). Unfortunately, there are "none in the country" and apparently they have none available in Japan either, as they gave me a tentative date of "THE LAST WEEK IN NOVEMBER!" (2½ months from the point I brought my car in) WTF?
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I am assuming it is a bearing, given it is a "whining" noise that changes pitch with the speed of the vehicle.
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Actually, that sounds more like worn gears to me. Hmmm. . . let us know what they find out it wrong with it.
I was just saying if you don't want to wait 2 months you have other options. I know I couldn't be without my car for that long. Hopefully they are giving you a loaner car to drive.
I was just saying if you don't want to wait 2 months you have other options. I know I couldn't be without my car for that long. Hopefully they are giving you a loaner car to drive.
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Actually, that sounds more like worn gears to me. Hmmm. . . let us know what they find out it wrong with it.
I was just saying if you don't want to wait 2 months you have other options. I know I couldn't be without my car for that long. Hopefully they are giving you a loaner car to drive.
I was just saying if you don't want to wait 2 months you have other options. I know I couldn't be without my car for that long. Hopefully they are giving you a loaner car to drive.
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These were my thoughts exactly, but they were persistent that it was the rear-diff and not the T-case. They said they used a stethoscope to verify the diagnosis. I am still skeptical, I think they MAY be covering their @$$ for putting the wrong fluid into the T-case (my diagnosis based upon the invoice I received back after my tranny warranty work).
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So they diagnosed a broken or worn out rear diff just by it being noisey?? That's BS. Did they even check the gear lash/free play as the service manual says? Did they take the rear diff apart to verify the ring and pinion are worn abnormally or cracked??
This is just another case of a dealership wasting Mitsu's money on bogus warranty repairs causing the price of all of our next cars to go up . . .
This is just another case of a dealership wasting Mitsu's money on bogus warranty repairs causing the price of all of our next cars to go up . . .
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So they diagnosed a broken or worn out rear diff just by it being noisey?? That's BS. Did they even check the gear lash/free play as the service manual says? Did they take the rear diff apart to verify the ring and pinion are worn abnormally or cracked??
This is just another case of a dealership wasting Mitsu's money on bogus warranty repairs causing the price of all of our next cars to go up . . .
This is just another case of a dealership wasting Mitsu's money on bogus warranty repairs causing the price of all of our next cars to go up . . .
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These were my thoughts exactly, but they were persistent that it was the rear-diff and not the T-case. They said they used a stethoscope to verify the diagnosis. I am still skeptical, I think they MAY be covering their @$$ for putting the wrong fluid into the T-case (my diagnosis based upon the invoice I received back after my tranny warranty work).
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Even with a mechanics stethescope its not that easy to pinpoint the sound. I remember reading a post while back where a member took his evo to the dealer for a whining noise and they would up changing the rear differential and driveshaft because thats what they though the noise was coming from but turned out to be the transfercase and it wasn't until they changed that out that the noise went away.
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********UPDATE*************
So, they replaced my rear-differential and sure enough it DIDN'T GET RID OF THE NOISE. They are now leaning towards the driveshaft or carrier bearings? I told them it was the transfer case from the very begging, not only have they made me wait 2 months, but they did not fix anything!
So, they replaced my rear-differential and sure enough it DIDN'T GET RID OF THE NOISE. They are now leaning towards the driveshaft or carrier bearings? I told them it was the transfer case from the very begging, not only have they made me wait 2 months, but they did not fix anything!
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********UPDATE*************
So, they replaced my rear-differential and sure enough it DIDN'T GET RID OF THE NOISE. They are now leaning towards the driveshaft or carrier bearings? I told them it was the transfer case from the very begging, not only have they made me wait 2 months, but they did not fix anything!
So, they replaced my rear-differential and sure enough it DIDN'T GET RID OF THE NOISE. They are now leaning towards the driveshaft or carrier bearings? I told them it was the transfer case from the very begging, not only have they made me wait 2 months, but they did not fix anything!
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This noise sounds like a textbook transfer case "death whine."