I was riding my 04' RT1150 yesterday & heard a loud droaning/whining noise when I accelerated over 5,000 rpm, I coasted to a stop downshifting still hearing the noise. When I came to a stop the noise went away. I set off again & intentially reved high over a few gear changes and the noise cam back, again coasting to a stop with the clutch in & again when I came to a stop the noise went away. The noise does not increase with the revs & does not seem to have any effect on the motor. I rode for another hour or so & when entering an on ramp & accelerating hard the noise came back & I noticed the speedo wavering up at 110-120 mph whilst going around 80mph. Again the noise went away coming to a stop at the off ramp. I assumed this was happening in the higher revs until I went over a rail crossing at 25mph & the noise came back again, then at a stop light went away again. Can you please help with any ideas as to what this problem is?
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turbos normal make a whining noise under load noise may be present more then before if you have changed anything on the intake side sometimes it can be as little as a lest restricted air filter other cause is lose piping but some power loss would be noticeable if this was the cause
hope this helps good luck
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Check the idler and tensioner pullys for your serpentine belt. I suspect the whining noise heard earlier was due to the fact one was getting a bit stiff or rough turning. When you gave it that extra fuel, the sudden load may have finished it off. Sometimes they lock up, and sometimes they fall apart. Check those items first.
Well you can remove the sensor in the diff and make sure that looks ok they g obad quiet often also woulnd not hurt too remove the rear diff cover and inspect the rear end if it is whining and you dont see anything wrong i would refill it with lucas oil/grease and start praying check the pinion too and see if it has any play in it
Run the car from the top of a hill and let it coast at your whining speed. Put it in Neutral, does the whine disappear?
If not its in the drivetrain (wheels, driveshafts, tranny)
Very unlikely to be the timing belt. If it appears at a fixed speed then its drivetrain, if it whines at fixed revs its the engine.
Most likey the transmission I fear....Tires will also make loud whining noise too though...