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ibexman



Member Since: 13 Dec 2008
Location: Essex
Posts: 2945
United Kingdom 
HELP PLEASE oil light stays on
I have a 27000 mile td5 90 and the oil light stays on at idle . i have changed oil and both filters and oil pressure sensor any thoughts cheers Chris
Post #268507 22nd Sep 2013 10:19am
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bpman



Member Since: 21 May 2008
Location: Oslo
Posts: 8069
2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
a short in the wiring ?
Post #268510 22nd Sep 2013 10:22am
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ibexman



Member Since: 13 Dec 2008
Location: Essex
Posts: 2945
United Kingdom 
When i blip throttle it goes off may be idle is low ?
Post #268512 22nd Sep 2013 10:26am
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ibexman



Member Since: 13 Dec 2008
Location: Essex
Posts: 2945
United Kingdom 
whoops
Post #268513 22nd Sep 2013 10:26am
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Lou Sparts



Member Since: 15 Apr 2012
Location: Kent
Posts: 1501
United Kingdom 2005 Defender 90 Td5 XS CSW Zambezi Silver
Will the ECU let it idle low ? My money would be on a short in the wiring probably through a chaffed wire somewhere as the oil pressure switch is earth operated.

I had this problem on a non LR car some years ago where the oil light would come on at tickover. 2005 Td5 90 XS

Steve
Post #268514 22nd Sep 2013 10:32am
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me@td5.org



Member Since: 16 Jan 2011
Location: Warwick
Posts: 856
2000 Defender 90 Td5 HT Epsom Green
Is your oil pressure low? Why assume it is an electrical fault? www.td5.org
Post #268521 22nd Sep 2013 10:51am
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897
England 2005 Defender 90 Td5 XS CSW Bonatti Grey
Temporarily substitute a pressure gauge and see what readings you get. 
Post #268522 22nd Sep 2013 10:53am
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ibexman



Member Since: 13 Dec 2008
Location: Essex
Posts: 2945
United Kingdom 
I'm still using it I'm wondering if I should runs fine
Post #268525 22nd Sep 2013 10:58am
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wizz80



Member Since: 06 Dec 2012
Location: north devon
Posts: 38
i wouldnt be using it if it was me i have changed a few oil pumps on these with the same problem get a gauge on there asap
Post #270469 30th Sep 2013 6:02pm
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Sphere



Member Since: 26 Apr 2013
Location: Midlands
Posts: 725
United Kingdom 2015 Defender 110 Puma 2.2 USW Keswick Green
I had this tried everything was the oil pump in the end. Mine was caused by the turbo failing and me not cleaning the sump properly. Expensive mistake but would be worse if the pump gives up.
Post #270484 30th Sep 2013 6:49pm
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3641
United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
Laurie wrote:
Temporarily substitute a pressure gauge and see what readings you get.


X2

Stop using it until you know the true pressure. I doubt the wiring DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy

Last edited by LR90XS2011 on 1st Oct 2013 5:17am. Edited 1 time in total
Post #270488 30th Sep 2013 6:56pm
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ibexman



Member Since: 13 Dec 2008
Location: Essex
Posts: 2945
United Kingdom 
As tested by beadles land rover 6to8 psi at idle 75 psi at 4000 rpm
Post #270561 30th Sep 2013 9:03pm
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dorstsmith2



Member Since: 06 Aug 2012
Location: On the third rock from the sun in dorset
Posts: 188
United Kingdom 2003 Defender 90 Td5 HT Caledonian Blue
TD5 Engine pressure at idle cold 3.0 bar 43.5 lbf.in3 low oil pressure switch opening 0.2 - 0.6 bar 3.0 -8.8 ibf in3 Cool
Post #270596 30th Sep 2013 10:02pm
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dorstsmith2



Member Since: 06 Aug 2012
Location: On the third rock from the sun in dorset
Posts: 188
United Kingdom 2003 Defender 90 Td5 HT Caledonian Blue
14 psi =1 bar
Post #270597 30th Sep 2013 10:04pm
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wizz80



Member Since: 06 Dec 2012
Location: north devon
Posts: 38
Yeah that pressure is to low get that oil pump changed asap
Post #270821 1st Oct 2013 8:36pm
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