Drivetrain Whine/Groan Under Power and Cruising
#1
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I recently acquired a 2000 Disco with 112k on the clock and it makes a groan/whine while accelerating and maintaining speeds above 35mph. It doesn't vibrate or anything, and the noise will go away when I let off the gas, but will return slightly when braking. I've posted a video, let me know what you all think. Thanks in advance!
Land Rover Discovery Whine - YouTube
Land Rover Discovery Whine - YouTube
#2
#4
#5
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The noise in mine is pretty loud, it would inhibit a conversation. The video does not do it justice unfortunately. The 03 Disco is very quiet, so idk if a fluid change will help... but I have the fluid and pump lying around, so why not try. The 2000 Disco sounds like a Jet engine getting ready to start lol.
#6
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Believe it or not, over-filling can make them noisier. You just want to fill until there's a little trickle. Also make sure the breather is not plugged as a plugged breather will cause a lot of extra noise. If all else fails Motul makes a high Moly reinforced gear oil that may quiet it, I think they may even market it as for noisy gearboxes.
#10