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Whirring noise is the best I can describe it. But it happens at speed regardless of my input. So rev range, gear, clutch in or out, brakes, steering, or going over bumps doesn't effect this problem. I'm at a major loss and it's starting to worry me. My search of the board for "whirring noise" turned up one thing, the infamous center driveshaft bearing. The car doesn't rumble, shake, or otherwise act any different that it did before, except for this noise. Is that it?
Although I had heard the whirring earlier that morning as I was driving over ice I didn't think anything of it; I really noticed it on Friday coming home from work because when I hit 45 coming off the highway I heard a decently loud high-pitched noise. It didn't really sound like anything in particular, but by the time I hit 40 it was completely gone and was replaced by the whirring, which got lower and slower as I slowed to a stop. I could not locate the sound, at first I thought it sounded like it was coming from the front-right; but now I think it's somewhere around the transmission. Hard to explain; probably harder to understand. It almost seems like right before it starts I hear and air-y type noise (is that even related?), then it's replaced by whirring.
Now any time I move my car above 20mph (although sometimes it'll do it from a stop) the whirring comes back until I hit 45, when it hits the high pitched noise stage. Above 50 it is COMPLETELY gone, there is no noise. So uh.............. anyone have any idea what that could be? Or is it time to junk her? =P
She's a '95 300 5-speed. Almost 113k on the old odometer.
Thanks in advance.
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Bringing this one back to life. Sorry guys, but I am not having much luck with the search feature :O
I too am having a "whirring" sound. Best compaired to the sound of off road truck tires on pavment, but not quite as loud. There is also a strong vibration from a stop and light vibration under acceleration at cruising speeds.
From some of the other things I read, it might be the "driveshaft center bearing" but I will not be able to climb under my car until my back is better, or I get more Meds
What are some other things that could be wrong?
I was also thinking the diff. might be on its way out, but how common is that with a 150k sc300?