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robbo22



Member Since: 21 Oct 2023
Location: Leistershire
Posts: 26
United Kingdom 2009 Defender 110 Puma 2.4 HT Keswick Green
Another.. “Can you help me find where..”
Evening All,

After not using my 110 for a couple of months, I’ve been using her again for the last couple of weeks. The last few drives I’ve noticed a ‘whoop, whoop’ noice coming from the drivers seat area. To describe the sound - its not a metal on metal sound, it sounds like there is something stuck in to tyre tread. It happens mostly when I'm decelerating.

Ive had a look underneath the truck and around that area. Prop shafts a good. Theres no sign of oil leaks from the front diff. Theres also nothing wedge between the brake calliper/disc.

After some searching online, most replies state its probably the front diff. Since owning the landrover(10k miles since purchase) i haven’t changed the diff oil or have proof the perivous owners did before me. My plan was to drain the front(and back, may as well) check to see if theres any metal shavings, re fill with new oil and go from there?

Any advice or guidance would be greatly appreciated!

Thank you
Post #1065039 8th Apr 2025 8:56pm
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Screbble



Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2179
United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
You might be better recording the sound/noise to help us identify the potential cause.

As diff oil is inexpensive, and it is easy to change, I’d suggest you do that anyway given you don’t know when (if) it was last changed?

Good luck Thumbs Up
Post #1065041 8th Apr 2025 9:06pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 2262
United Kingdom 
A few tips, Make sure you undo the fill plug first, you don’t want to drain only to find the fill plug is stuck.

Before you do, purchase some magnetic diff plugs, they are cheap. Also some hylomar blue as a sealant when replacing plugs. And do not over torque on refitting.
Post #1065048 8th Apr 2025 9:23pm
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jim4244



Member Since: 13 Apr 2014
Location: Bedfordshire
Posts: 925
England 2007 Defender 90 Puma 2.4 CSW Zermatt Silver
Hi

I hade a similar noise, that sounded like distant a helicopter, on my L322.

At first I thought that it was the front diff but on the advice from a guy on the "Full Fat" forum I went for a drive and then temperature checked each brake caliper using a laser thermometer and found that the front drivers side caliper was partially seized.

I rebuilt the caliper and no more helicopter..

Jim
Post #1065064 9th Apr 2025 4:42am
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piechipsandpeas



Member Since: 12 May 2021
Location: Albany, Western Australia
Posts: 225
Australia 2013 Defender 110 Puma 2.2 SW Indus Silver
"A whoop whoop noise coming from the driver's seat area".

Time for the driver to visit the doctor? Laughing Laughing
Post #1065112 9th Apr 2025 12:33pm
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robbo22



Member Since: 21 Oct 2023
Location: Leistershire
Posts: 26
United Kingdom 2009 Defender 110 Puma 2.4 HT Keswick Green
Still haven't had any luck in finding the cause.


Ive uploaded a clip of the noise - https://youtube.com/shorts/JKbd7Rfn0Mo?si=GoddpCuBRpg75YHV

The noise only happens when decelerating.
Post #1065779 18th Apr 2025 3:49pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20749
United Kingdom 
You could have trapped debris in the handbrake drum, but is a long shot…

Be aware that the Prop UJ’s may seem okay, but can be difficult to find a failed bearing in situ.

Check for diff pinion horizontal and vertical movement for any play, there is possibility the bolt on that can be a bit loose, possibly transfer box side as well.

Worth checking the DM’s and the splines on those, plus wheel bearings at the same time. WeWillWin🇬🇧🇺🇸
⛽️🛢️⚙️🧰💪
Post #1065781 18th Apr 2025 5:06pm
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robbo22



Member Since: 21 Oct 2023
Location: Leistershire
Posts: 26
United Kingdom 2009 Defender 110 Puma 2.4 HT Keswick Green
Thank you for your reply!

Drive train seems to be ok. Ive had it on stands to check and everything seems to be in good working order.

I can also hear it when in N ticking over. Could this be an exhaust issue?

The noise disappears when rolling and with the clutch down.
Post #1065842 19th Apr 2025 11:09am
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20749
United Kingdom 
See if the exhaust is knocking on anything, particularly to the rear, but exhaust in general both ends and manifold near CAT WeWillWin🇬🇧🇺🇸
⛽️🛢️⚙️🧰💪
Post #1065858 19th Apr 2025 1:58pm
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