 | Home > Technical > TD5 problem, help please |
 
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| K9F Member Since: 12 Nov 2009 Location: Bournemouth Posts: 9610   
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Where are you taking the negative reading from on the body? Could be a 'red herring' I would take it adjacent to where the negative is strapped to the vehicle or a known circuitry earth point. If you go through life with your head in the sand....all people will see is an ar5e!!
Treat every day as if it is your last....one day you will be right!! |
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16th Feb 2014 11:19am |
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| bpman Member Since: 21 May 2008 Location: Oslo Posts: 8069 
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welcome to the site, it's probably worth searching for "Oil in the loom", this was a fault on pre-2003 defenders, and caused all sorts of intermittent ignition issues.
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16th Feb 2014 11:23am |
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| RichyB1967 Member Since: 16 Feb 2014 Location: Dundee Posts: 11 
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Hi K9F
Thanks for the reply. I took the resistance reading between the neg term post on the battery and the nearest untainted screw on the dashboard. There is no negative connection to the body, it goes to the gearbox only |
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16th Feb 2014 11:24am |
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| RichyB1967 Member Since: 16 Feb 2014 Location: Dundee Posts: 11
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Thanks BPman,
Will check it out. Would I look for it at the ecu end or the engine rocker cover end? |
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16th Feb 2014 11:27am |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3247  
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Pull the red plug at the ecu end and look for signs of oil.
Bob 2015 Jaguar XE240 R Sport - goes like ....... !! 2013 Defender 90 CSW - sold 2009 Defender 110 Double Cab - sold 2001 TD5 90 CSW - offroad project - sold to a forum member 2011 Porsche Boxster - for the sunny days ! |
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16th Feb 2014 11:31am |
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| barbel jim Member Since: 12 Dec 2012 Location: Northants Posts: 1412 
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Sounds exactly the same as a problem I used to get
 There are 2 yellow relays below the drivers seat, (forget what they are for) Try wiggling them (the chattering one first) The contacts sometimes become worn  I tried tightening up the connectors, new relays , but the long term fix was to cable tie the relay in tight  |
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16th Feb 2014 11:44am |
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| RichyB1967 Member Since: 16 Feb 2014 Location: Dundee Posts: 11
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Thanks everyone,
I just wanted to say that this site is much friendlier than another site I've looked at! Richy |
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16th Feb 2014 11:47am |
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| defninety Member Since: 13 May 2010 Location: Warwickshire Posts: 37 
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Sounds like fuel pump relay sticking. If you ignition on and can't hear the pump and the glow light doesn't come on then it is usually that. Take the first yellow relay out from under the seat and put it back in a see if it then starts.
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16th Feb 2014 1:36pm |
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| Lou Sparts Member Since: 15 Apr 2012 Location: Kent Posts: 1501 
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The relay should,nt "chatter" if it does then it is switching on and off i would have a good look at that first,As previously mentioned check the red plug on the ECU (under the drivers seat) and check for oil if present this is a easy cheap fix for which there are plenty of threads on here.
Let us know how you get on and welcome to the forum 2005 Td5 90 XS
Steve |
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16th Feb 2014 1:39pm |
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| Laurie Member Since: 22 Feb 2008 Location: Sussex, England Posts: 2897 
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I had exactly the same problem.
Replaced a (5 year old) battery that seemed in perfectly good condition and the problem went away.  |
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16th Feb 2014 1:42pm |
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| RichyB1967 Member Since: 16 Feb 2014 Location: Dundee Posts: 11
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Hi All,
The wiring loom red plug at the ecu is not wetted from oil, the relay is still chattering, could the newly fitted fuel pump be at fault? The pump make was vdo who I'm told make the genuine LR pumps. Cost £300 from Mann Autos in Laurencekirk who are reputable and well experienced suppliers and repairers. I hope it's not a faulty pump, was a difficult job to change it. Have tried tightening the wires around the relays. Thanks again, Richy |
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16th Feb 2014 3:44pm |
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| bga86 Member Since: 17 Jan 2014 Location: Here and there Posts: 205 
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Rich if the temp gauge goes into the red when you turn ignition on then it's a fault with the power control relay under the drivers seat, a tap on top of them usually does the trick to get it started
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16th Feb 2014 4:28pm |
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| Laurie Member Since: 22 Feb 2008 Location: Sussex, England Posts: 2897
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Try a substitute battery.
Swap the yellow relay with another one (assuming you've got two yellow relays) |
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16th Feb 2014 4:35pm |
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| RichyB1967 Member Since: 16 Feb 2014 Location: Dundee Posts: 11
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Hi bga68,
Just removed the power relay, took the cover off, checked continuity of the coil 50 ohms! but it doesn't energise when the ignition is switched on, I guess it pulls in when the engine starts. There's a couple of the yellow relays in the fuse box in front of the gear stick, changed out with one of the 30 amp ones, still chattering and no start, all of the large fuses/ links are healthy. Mmmmm not sure where to look next Richy |
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16th Feb 2014 5:44pm |
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