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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2762

United Kingdom 
2 issues for your consideration
1) When i turn the aircon on, the front end (I'm assuming the electric fan) makes an unbearable screeching noise! Kind of like when a bathroom extractor fan is on its last legs. Can the fan be removed & cleaned/greased or is there a bearing which may have failed or is it just knackered? (if so is it much to replace?)



2) The more serious issue: The car seems to (with increasing frequency) suddenly send the temp gauge to the very top (no hot water light or EM light though) and go into limp mode. After 5/6 secs the gauge will rapidly drop back down to dead level and full power is resumed. The car (as far as i can tell) ISNT actually getting hot as it'll happily go up a long steep hill at 75+ without getting warm at all, then some time later i might be doing say 50 mph and it'll just do it. Also has happened in very low gears and when pulling away once. It doesn't always even seem to happen under load. It has done this once before on the way to the lakes say a year ago but its happened 5/6 times in the last 300mi now.

So I checked on the fault code reader and it came up with only one fault code which I've had before in the past (same one as when it did it that one time before) and I've had this fault code before without going into limp mode too. The code is P1103 which according to BAS website is "MAF sensor higher than expected but within range".

Any ideas folks? Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #324463 18th Apr 2014 9:22am
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
W.r.t. 2) When I'm remapping, communication with the ECU makes the temperature gauge go to the top and sit there.
Probably not helpful (sorry) but just some info. Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #324466 18th Apr 2014 9:28am
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Dave78



Member Since: 24 Feb 2014
Location: Warwickshire
Posts: 25

United Kingdom 
The temp gauge going into the red and loss of power seems to ring a bell with a lose connection to the power relay that is under one of the front seats. Tighten that up, and it seems all is well. I'm sure I read it on here somewhere, but can't find it at the moment
Post #324468 18th Apr 2014 9:36am
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wyvern



Member Since: 13 Dec 2009
Location: Cornwall
Posts: 2117

United Kingdom 2012 Defender 110 Puma 2.2 XS CSW Firenze Red
as Dave said
We had the same issue and wiggled all the relays under the driver seat finding one loose
not ahppend since ... (Touch wood Shocked !) Poppy - TDCI (Puma) 110XS 2.2 - Camper conversion - see the build here - https://www.defender2.net/forum/topic56530.html
Elgar -TDCI(Puma) 110XS Dormobile - now sold
Devon & Cornwall 4x4 Response - DC126
Post #324477 18th Apr 2014 11:06am
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20504

United Kingdom 
That fault code can also sometimes be linked with EGR issues, as well as being a nuisance too.
I'm assuming though that your EGR is working fine?
Fan wise I'd imagine replacement would be better, doubt you can do much with it.
Post #324479 18th Apr 2014 11:11am
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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2762

United Kingdom 
agh cheers guys. Ill go and have a look under the drivers seat in a bit! Have been doing some fiddling around there so could be that.. fingers crossed

Steve: no my EGR has been shut off by a remap... that was only recently though and this has happened before. Maybe something to look into if its not the relay under the seat.

Ill have a good look at the fan. It can't be expensive I wouldn't think? Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #324483 18th Apr 2014 11:30am
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bell-auto-services



Member Since: 08 Jul 2007
Location: North Yorkshire
Posts: 2232

United Kingdom 2013 Defender 110 Puma 2.2 USW Orkney Grey
When the temp guage goes to the very top does the rev counter drop to 0 also at the same time ? And other lights on the dash when it does it ?

Pete
Post #324496 18th Apr 2014 2:22pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
transits do the same when sensor is knackered
Post #324497 18th Apr 2014 2:26pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20504

United Kingdom 
davidwhittaker wrote:


Ill have a good look at the fan. It can't be expensive I wouldn't think?

One can hope! Somehow knowing LR there is nothing cheap. Big Cry
Post #324498 18th Apr 2014 2:32pm
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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2762

United Kingdom 
bell-auto-services wrote:
When the temp guage goes to the very top does the rev counter drop to 0 also at the same time ? And other lights on the dash when it does it ?

Pete


Nope, nothing else. Just gauge flicks to the top, then slowly falls. Revs stay accurate and decrease as speed drops slowly as in limp mode. No engine light and no high temperature warning light.

Did just have a look under the seat and there was a loose relay, pushed it back in but not had chance to test-drive.


custom90steve wrote:
One can hope! Somehow knowing LR there is nothing cheap.


Just looked on ebay, only Ł30-40 so not too bad! Will investigate further in a bit...[/quote] Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #324509 18th Apr 2014 3:30pm
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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2762

United Kingdom 
Little bit worried now guys...

Decided to run with torque pro (obd gauge app) running today and see what it recorded. Engine coolant was around 95-105 .C most of the time but at one point got to 116.c at which point problem 2 above happened.

Sounds like I could have an overheating issue? Don't understand why the gauge wouldn't record it running hot on the dash though? Only jumped up to the red briefly before falling rapidly. Otherwise it never strayed from the dead level mark?

Hmmmm.... Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #324610 18th Apr 2014 10:48pm
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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2762

United Kingdom 
Keep coming back to this MAF sensor fault.

They're about 30-50 pounds so maybe worth replacing in future. First though can it be cleaned/inspected? Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #324616 18th Apr 2014 11:34pm
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3648

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
if this was an older car I would be checking the cable and connections to the coolant temp sensor DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #324632 19th Apr 2014 6:13am
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Rakthi



Member Since: 30 Nov 2012
Location: Where the cats are
Posts: 200

2011 Defender 110 Puma 2.4 HCPU Stornoway Grey
davidwhittaker wrote:
Little bit worried now guys...

Decided to run with torque pro (obd gauge app) running today and see what it recorded. Engine coolant was around 95-105 .C most of the time but at one point got to 116.c at which point problem 2 above happened.

Sounds like I could have an overheating issue? Don't understand why the gauge wouldn't record it running hot on the dash though? Only jumped up to the red briefly before falling rapidly. Otherwise it never strayed from the dead level mark?

Hmmmm....


Maybe your thermostat? Your engine coolant temp is rather high compared to what I get here. I run with the ultra gauge and temp is usually between 88 - 90° C. Highest I've ever seen is 92°C. And keep in mind I live in the sub-tropics with an average temp in the mid 30s (my intake temp on average is 45°C - could do with a bigger intercooler)

The gauge is very insensitive and kind of designed to stay at the halfway point. If it would be as accurate as your OBD gauge a lot of people would keep brining their cars back to the garage. Probably only goes up when the temps are really high.

Hope you find the problem soon!
Post #324635 19th Apr 2014 6:20am
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
I agree with Rakthi with my Scangauge II my CWT never goes above 90 degrees. I think it'll be a thermostat or associated connectivity issue.

Good luck in finding the root cause. Thumbs Up 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!!
Post #324647 19th Apr 2014 8:12am
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