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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3634   
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Can you tell which area of the car its coming from DEFENDER 90 TDCI XS,
I hope everyone is well and your land rovers make you happy |
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15th Apr 2012 8:55pm |
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| Jonno Member Since: 06 Mar 2012 Location: Yorkshire Posts: 234 
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I would say certainly the back, it sounds to be coming from the nearside, but I could be wrong on that bit.
It's just odd that the greater the reverse torque ie a steep hill while the engine is holding back makes it much worse or a downshift of the gears makes it louder too. it stops when accelerating or steady speed driving. When I first heard it I dismissed it as a bit of run out on a brake disc, but as time has gone on I'm pretty certain it isn't that now. Touching the brakes doesn't change the sound until the car is slowed enough to match the speed to the engine and thus unloading the driveline pressure. Fair to say it has me stumped, but as the garage says it will develop and identify itself........ Jonno |
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15th Apr 2012 9:05pm |
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| dgardel Member Since: 30 Nov 2008 Location: Veneto (Heart & Head) Posts: 3586 
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Mhmm rear diff
Satelite pin.... Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition 
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15th Apr 2012 9:23pm |
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| Jonno Member Since: 06 Mar 2012 Location: Yorkshire Posts: 234
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Cheers for the input, I will post back when I eventually get to the bottom of it. Jonno |
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15th Apr 2012 9:52pm |
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| Jonno Member Since: 06 Mar 2012 Location: Yorkshire Posts: 234
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Nothing seems to have changed with the rubbing noise over the last week or so and as the dealer is unable to suggest anything wrong, I think the next step will be draining the rear diff oil after a run this weekend, (if it ever stops raining).
The dealer advised the oil level had been checked, although to be fair my good old dinitrol doesn't seem to have been disturbed over the filler plug.... At least if I dump the oil into a clean drain bowl it might be apparent if anything is in terminal decline, (flakes of metal etc) If it is more or less particle free, I reckon I'll just forget about it as it can't be much thats wrong! Interestingly when I had a quick look underneath earlier today I noticed the UJ joints had rust showing around the cracks separating the sections suggesting their isn't much grease in them, I wonder if they are supposed to get a shot at PDI or if its only done at the factory then the 12 month service.... This doesn't prove anything but I borrowed works infra red thermometer and took a reading from the diff case the front diff was at 16c after a 4 mile run the rear at 26c with a ambient temp of six. Again nothing definitive as the higher rear temp could be caused by less wind blasting on it at the back or it might naturally take more of the drive load. So yes it runs hotter than the front one but that might be normal! So no further forward, more investigations this weekend I think......... |
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19th Apr 2012 9:25pm |
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