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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17382

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
No, this suggests that it is something other than the VCV on this occasion. The temp gauge shooting to FSD* is one of the symptoms often seen if the relays under the OSF seat are not seated properly or are not tightly connected, although this is more common with a failure-to-start fault than a loss of power when running.

It would be worth checking earth connections to the battery, chassis, and bulkhead too.

Temp readings can be misleading since the temp indicator (I don't really like to call it a gauge because it isn't) is driven by the IPAC and will shown 'normal' for a whole range of operating temperatures, but will shoot up if the normal range is exceeded. It may be that the coolant sensor or CHT sensor has a problem, or it may be that the temperature really is high and the ECM is protecting the engine. It would be informative to run with a diagostic tool connected to monitor the actual reported temperature.

Many people on here have had problems associated with high temperatures.

(*FSD = full scale deflection)
Post #726409 31st Aug 2018 9:31am
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Grenadier



Member Since: 23 Jul 2014
Location: The foot of Mont Blanc...
Posts: 5816

France 2011 Defender 110 Puma 2.4 DCPU Corris Grey
Thanks Blackwolf.

When I opened the bonnet and also felt around the footwell, brake lever etc, all felt normal. No 'sense' of it overheating. I'll certainly check the coolant this arvo.

Interesting that you mention battery connections. Would the dealership who tackled the Output Shaft and Clutch replacement have disconnected the battery? This all started after I picked it up in Palma last week. Never before.

Further, and also after I picked it up and was on the motorway, I found I had a small wiring loom issue which effected the OS headlight and indicator (British car). I played with the wires and connectors near where they enter the bulkhead and coolant res is, just as a temp measure to get me home. I have not touched them since, but do we think this might have shorted the wiring to the CHT given it is in the same place? Monsieur Le Grenadier

I've not been everywhere, but it's on my list.....

2011 Puma 110DC - Corris Grey
Post #726414 31st Aug 2018 9:45am
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Grenadier



Member Since: 23 Jul 2014
Location: The foot of Mont Blanc...
Posts: 5816

France 2011 Defender 110 Puma 2.4 DCPU Corris Grey
I just checked the coolant reservoir and I am unbelievably embarrased to say it is empty. Not low, empty! Shocked

I can only assume this is the cause of the overheating and that the ECU safety/limp home mode has been kicking in. Of greater concern is where an entire reservoir and system's worth of coolant has gone, given I have not had any spraying in the engine compartment, nor have seen any (ever) under the car, I'm at a loss. Not a smidge. I'll fill her up and see what comes of it.

What a muppet Whistle Monsieur Le Grenadier

I've not been everywhere, but it's on my list.....

2011 Puma 110DC - Corris Grey
Post #726432 31st Aug 2018 11:13am
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Ramsay



Member Since: 30 Sep 2015
Location: Moffat, Dumfries & Galloway
Posts: 627

Scotland 1995 Defender 110 300 Tdi CSW Auto Keswick Green
First parade? Whistle 1995 Defender 110 CSW
1971 SIIA Lightweight
Post #726438 31st Aug 2018 11:55am
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Grenadier



Member Since: 23 Jul 2014
Location: The foot of Mont Blanc...
Posts: 5816

France 2011 Defender 110 Puma 2.4 DCPU Corris Grey
I looked under the bonnet and tried to cover most of the coolant system as best I can with the Def sitting on the street in central Cham, limited tools, bad light and rain. However, I 'may' have found the culprit as this pipe (thanks to another forum member who posted this photo in 2014), was not seated properly. Probably 1cm from being flush with the heater control valce. No sign of excess spray/spillage, but perhaps enough has eeked out over time. I think this might have been a very, very slow leak. Will commit to a more complete check once I've topped up the coolant and got the DC back home.


Click image to enlarge
 Monsieur Le Grenadier

I've not been everywhere, but it's on my list.....

2011 Puma 110DC - Corris Grey
Post #726440 31st Aug 2018 11:58am
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Grenadier



Member Since: 23 Jul 2014
Location: The foot of Mont Blanc...
Posts: 5816

France 2011 Defender 110 Puma 2.4 DCPU Corris Grey
Ramsay wrote:
First parade? Whistle


Too true. Embarassed And I certainly did before driving down to Mallorca, just not after picking her up from the LR dealer in Palma before driving home. You live and learn... Big Cry Monsieur Le Grenadier

I've not been everywhere, but it's on my list.....

2011 Puma 110DC - Corris Grey
Post #726444 31st Aug 2018 12:19pm
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Hairysteve



Member Since: 15 Jun 2015
Location: Surrey
Posts: 692

United Kingdom 2009 Defender 110 Puma 2.4 XS CSW Barolo Black
Grenadier wrote:
I looked under the bonnet and tried to cover most of the coolant system as best I can with the Def sitting on the street in central Cham, limited tools, bad light and rain. However, I 'may' have found the culprit as this pipe (thanks to another forum member who posted this photo in 2014), was not seated properly. Probably 1cm from being flush with the heater control valce. No sign of excess spray/spillage, but perhaps enough has eeked out over time. I think this might have been a very, very slow leak. Will commit to a more complete check once I've topped up the coolant and got the DC back home.


Click image to enlarge


Phew Thumbs Up
Post #726446 31st Aug 2018 12:26pm
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Ramsay



Member Since: 30 Sep 2015
Location: Moffat, Dumfries & Galloway
Posts: 627

Scotland 1995 Defender 110 300 Tdi CSW Auto Keswick Green
My father totalled the engine in a brand new Series IIA station wagon after picking it up from the dealer. They had forgotten to fill the radiator. That story is still doing the rounds in our family after 50 years so we all do try to do checks ourselves before long journeys. 1995 Defender 110 CSW
1971 SIIA Lightweight
Post #726447 31st Aug 2018 12:32pm
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Grenadier



Member Since: 23 Jul 2014
Location: The foot of Mont Blanc...
Posts: 5816

France 2011 Defender 110 Puma 2.4 DCPU Corris Grey
Given the nearest French 'Halfords' is 25kms away, out of the valley, with no public transport, I'm thinking of refilling with water to get me home. I can secure at least 4 litres of deionized water (not distilled), possibly more, as I'm led to believe I may need as much as ten litres to refill the full coolant system which looks dry. Is it general consensus that this will be OK until I can do a full bleed and refill? Will likely cover no more than 50kms in the interim and local temps will not be getting close to freezing for some time. Monsieur Le Grenadier

I've not been everywhere, but it's on my list.....

2011 Puma 110DC - Corris Grey
Post #726448 31st Aug 2018 12:59pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17382

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Grenadier wrote:
... Interesting that you mention battery connections. Would the dealership who tackled the Output Shaft and Clutch replacement have disconnected the battery? ...


Yes, without a doubt. There are also earth connections to the gearbox which would have been disconnected.
Post #726451 31st Aug 2018 1:21pm
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Grenadier



Member Since: 23 Jul 2014
Location: The foot of Mont Blanc...
Posts: 5816

France 2011 Defender 110 Puma 2.4 DCPU Corris Grey
Mea Culpa
Topped up the coolant, 'just' 2 litres needed. ECU light out immediately, full power on tap, no ECO safety mode, normality restored Thumbs Up

It goes to show that despite my education, life experiences, travels, and general awesomeness etc etc, I can still be a complete moron at 45 years of age. Whistle

Mrs Grenadier regularly thinks I am, indeed she says that I 'have the (mad) cow', but I never believe her; I do now Rolling with laughter Monsieur Le Grenadier

I've not been everywhere, but it's on my list.....

2011 Puma 110DC - Corris Grey
Post #726604 1st Sep 2018 9:45am
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pannawonica



Member Since: 21 Nov 2010
Location: Clackline Western Australia
Posts: 568

Australia 
Don’t worry mate as a two and from I’m still not allowed too give blood here after nearly thirty years because of mad cow disease Laughing We all have those moments! Rolling with laughter it’s beer o’clock somewhere in the world ! Thumbs Up
Post #726617 1st Sep 2018 10:58am
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shropshiredefender



Member Since: 05 Jun 2017
Location: Shropshire
Posts: 834

England 2011 Defender 110 Puma 2.4 USW Santorini Black
Tempted to post your favourite picture again but I have over diagnosed defender problems so many times in the past Laughing
Be lucky Smile
Post #726645 1st Sep 2018 1:55pm
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