Discovery 2 Weird electrical noise

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Judging by your recent posts, I'd say that you're just guessing at what might be the problem. My advice would be to take the acoustic cover off the engine, start it up and listen to what might be causing any noises.

You can listen to bearings with a long screwdriver between the location of the suspect part and your ear, like a listening stick. If you want to go posh, you can get a mechanics stethoscope.

Beware of moving parts such as the fan when running the engine with the covers removed.
I can’t get it replicate the noise without the car moving which is the annoying part.
 
In that case, before you tear your hair out looking for an electrical type noise which only happens when the vehicle is moving, I would say that your first priority is to fix that spring.
both front springs are off just wondering i wanna replace with a 2" lift or not :) gotta love land rovers
 
both front springs are off just wondering i wanna replace with a 2" lift or not :) gotta love land rovers

Take a tip. Don't even try modifying a vehicle until you're sure that it runs correctly in its stock configuration.
There's more to lifting a Disco 2 than just sticking a couple of bigger springs on the front of it. Have a good read of this by @300bhp/ton, a well respected off-roader:-

https://www.landyzone.co.uk/land-rover/lifting-a-d2-properly.300573/#post-3749057

Get to know your vehicle first, run it for a couple of months, with all its little foibles and then decide on what you want. Unless you're going to use it for "pay and play", even in it's stock configuration it's still a pretty capable vehicle.
 
Take a tip. Don't even try modifying a vehicle until you're sure that it runs correctly in its stock configuration.
There's more to lifting a Disco 2 than just sticking a couple of bigger springs on the front of it. Have a good read of this by @300bhp/ton, a well respected off-roader:-

https://www.landyzone.co.uk/land-rover/lifting-a-d2-properly.300573/#post-3749057

Get to know your vehicle first, run it for a couple of months, with all its little foibles and then decide on what you want. Unless you're going to use it for "pay and play", even in it's stock configuration it's still a pretty capable vehicle.
thanks for that, its cleared a few questions. It was more trying to be cost effective and not having to buy 2 new springs to replace in a couple of months if you get me :) Had the car just over 6 months now been off roading, towing boat etc and these are the only problems I've found so far. I find it hard to believe that nobody has come across this same problem as most nosies are generic
 
TBH, an "electrical type" noise would be unlikely to be heard by another vehicle, electrical noises just don't get that loud, unless you like to play rap with a silent "C" at ear splitting volumes. Your noise is much more likely to be caused by some mechanical problem.

Since you seem unable to recreate it with the vehicle stationary then it would be reasonable to surmise that your noise is more likely to be caused by a suspension or more likely a transmission fault. When was the last time that the oils were checked and/or changed in the transmission units?

The reason why I said get the vehicle to run correctly in its stock condition first is if you start modifying it without doing that you won't know whether a problem was already existing or was caused by something you've done as a part of doing any modification.

Your earlier posts do make it seem that instead of carefully tracking down a problem, you're just jumping about from one part of the engine to another without making any checks. Oh, and the ABS pump (modulator) is bolted to the inside of the nearside wing, it isn't driven by the auxiliary drive belt.
 
TBH, an "electrical type" noise would be unlikely to be heard by another vehicle, electrical noises just don't get that loud, unless you like to play rap with a silent "C" at ear splitting volumes. Your noise is much more likely to be caused by some mechanical problem.

Since you seem unable to recreate it with the vehicle stationary then it would be reasonable to surmise that your noise is more likely to be caused by a suspension or more likely a transmission fault. When was the last time that the oils were checked and/or changed in the transmission units?

The reason why I said get the vehicle to run correctly in its stock condition first is if you start modifying it without doing that you won't know whether a problem was already existing or was caused by something you've done as a part of doing any modification.

Your earlier posts do make it seem that instead of carefully tracking down a problem, you're just jumping about from one part of the engine to another without making any checks. Oh, and the ABS pump (modulator) is bolted to the inside of the nearside wing, it isn't driven by the auxiliary drive belt.
The car was in a Landy garage and they couldn’t track it down. They replaced front diff, changed rear diff oil, transfer case oil and gearbox oil. The reason I said abs pump is exactly the reason of it not being belt driven. The noise kicks in at about 2500rpm which if you rev the car to that rpm surely the belt would be spinning at the same speed as on the road. - The noise isn’t created which to me suggests that it isn’t anything attached on the aux belt.
I’ve had a Discovery 3 previous and when the alternator was failing you could rev the car and the alternator would sound like a supercharger, I also had a battery light on the dash.
The car runs flawlessly, no loss of power, no misfires, isn’t guzzling fuel just has a freaking annoying noise :(
 
i cant watch the vid but it would be worth checking exhaust manifold gasket they can screech at higher boosts,manifold is prone to warping
 
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