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Yesjus

Member Since: 19 Sep 2022
Location: Surrey
Posts: 78

2008 Defender 110 Puma 2.4 XS CSW Santorini Black

Defender 110 power issues and temp overheating

Hi,
New to the forum and defenders so thanks in advance for the help.
I purchased my defender 110 a couple months back and all has been great.
Recently had a full service (first one I wanted done properly!) and the mechanic said it’s in good shape.

However last weekend I had problem!
On my journey I experienced loss of power when going through the gears and eventually i couldn’t get the throttle to rev but would continue to idle.
I pulled over and turned off engine and turned it back on, the problem went away but then quickly returned. I had the AA out who said it could be the MAP so unplugged that and he followed me home.
Engine light come on as expected and drove for 20 mins not a problem. Just before I got home it happened again. This time the temp spiked to max! I quickly pulled up and turned engine off. I turned it back on straight away and the temp was back to normal! I then continued home (5mins) and had no problems, until I went to reverse on my drive…the temp spiked again so shut engine off, however this time when i went to turn it back on, it would start up but then die on me….later that eve I went to move it off the pavement! And it started fine, would rev and easily got it back on the drive!!

Upon some reading up it sounded like the MAP sensor or the VCV valve. So I’ve just changed them both.
Just gone out for a drive and the same thing is happening ( I’m currently stuck In a lay-by waiting for it to cool down!!)
Same thing happened, it was fine for 10 mins…pulled over to check engine bay, started it up again thinking all was fixed and just as I was approaching a junction I could feel the defender not responding to the throttle. Put it in 1st and it barely got over 500rpm and temp spiked again to max.
After turning off and on temp returns to normal however same problem with once it starts up it just chugs a bit then dies.
Sorry to waffle on but wanted to give you as much info as poss….any help welcome!!

Thanks

Justin

21st Sep 2022 3:05pm

Yesjus

Member Since: 19 Sep 2022
Location: Surrey
Posts: 78

To also add, to help with the over heating I turned the heater on and I dont know how well they work but the lower heater was burning my leg!! Maybe a radiator issue??

21st Sep 2022 3:12pm

jpboost

Member Since: 13 Apr 2021
Location: Gatwick
Posts: 377

2014 Defender 110 Puma 2.2 SW Keswick Green

Are the spikes in temperature immediate or take a few minutes?

If immediate then this would suggest the issue is electrical (sensor, ecu, or the wiring in-between) rather than a physical issue with the cooling system.

21st Sep 2022 3:25pm

Yesjus

Member Since: 19 Sep 2022
Location: Surrey
Posts: 78

The coolant level remains normal. However I have a OBD scanner and it’s showing no faults!
Also after inspecting the underneath i am noticing a lot of brown water/oily residue under the engine but no obvious leaks/drips. Is this normal?

(Added pictures below)

Last edited by Yesjus on 21st Sep 2022 4:55pm. Edited 3 times in total

21st Sep 2022 3:30pm

Yesjus

Member Since: 19 Sep 2022
Location: Surrey
Posts: 78

jpboost wrote:
Are the spikes in temperature immediate or take a few minutes?

If immediate then this would suggest the issue is electrical (sensor, ecu, or the wiring in-between) rather than a physical issue with the cooling system.

I would say gradually rising at a fast pace (20 seconds or so) instead of immediate spike so don’t know if this would point to an electrical problem

Last edited by Yesjus on 21st Sep 2022 4:54pm. Edited 3 times in total

21st Sep 2022 3:35pm

JOW240725

Member Since: 04 May 2015
Location: Suffolk
Posts: 7905

2012 Defender 110 Puma 2.2 XS CSW Orkney Grey

I can't help with the issue but hopefully the knowledgeable will be along shortly.

But welcome to Defender ownership and D2N

James
MY2012 110 2.2TDCi XS SW Orkney Grey - http://www.defender2.net/forum/topic43410.html
MY1990 110 200TDi SW beautifully faded Portofino Red - https://www.defender2.net/forum/post743641.html#743641
MY1984 90 V8 Slate Grey - https://www.defender2.net/forum/post744557.html#744557
Instagram @suffolk_rovers

21st Sep 2022 3:46pm

Yesjus

Member Since: 19 Sep 2022
Location: Surrey
Posts: 78

Just to add, don’t know if relevant but I finally got home and it died again on me as just pulling up.
I’ve let cool and went to move onto drive.
On start up it bellowed white smoke form the exhaust…I applied some throttle and the white smoke turned to a small bit of black smoke before clearing.
If I rev hard it will still produce black smoke.
Hope this helps.
Thanks again guys 👍

21st Sep 2022 4:24pm

Yesjus

Member Since: 19 Sep 2022
Location: Surrey
Posts: 78

Really need some help here guys with suggestions.
It’s been in the garage now for nearly 2 weeks. Mechanic can’t find anything!!? He’s also done some road tests and it hasn’t done the problem with him?? He’s done electrical checks, head gasket checks etc and no results that indicate problems.

It’s being dropped back tonight…any thoughts on what it could of been and maybe self corrected or anything my guy might of missed?

Thanks

3rd Oct 2022 3:50pm

JOW240725

Member Since: 04 May 2015
Location: Suffolk
Posts: 7905

All I can suggest is use the search facility here to look at other threads.

A few to start:-
https://www.defender2.net/forum/topic21349...power+loss
https://www.defender2.net/forum/topic67703...power+loss

or search results for you to wade through:-
https://www.defender2.net/forum/search.php...rch_time=0 James
MY2012 110 2.2TDCi XS SW Orkney Grey - http://www.defender2.net/forum/topic43410.html
MY1990 110 200TDi SW beautifully faded Portofino Red - https://www.defender2.net/forum/post743641.html#743641
MY1984 90 V8 Slate Grey - https://www.defender2.net/forum/post744557.html#744557
Instagram @suffolk_rovers

3rd Oct 2022 4:02pm

Greyman110

Member Since: 29 Sep 2017
Location: London
Posts: 327

If you drive it up to temp, do your coolant hoses remain rock hard after after the engine has cooled down?

Have you noticed if this happens or starts to happen only when you're going up hill in a high gear?

3rd Oct 2022 4:30pm

Yesjus

Member Since: 19 Sep 2022
Location: Surrey
Posts: 78

I’ll check when I next pick it up. Assuming if it’s hard it could be an internal blockage?

4th Oct 2022 3:30pm

Yesjus

Member Since: 19 Sep 2022
Location: Surrey
Posts: 78

JOW240725 wrote:
All I can suggest is use the search facility here to look at other threads.

A few to start:-
https://www.defender2.net/forum/topic21349...power+loss
https://www.defender2.net/forum/topic67703...power+loss

or search results for you to wade through:-
https://www.defender2.net/forum/search.php...rch_time=0

Thanks for the links.
I have scrolled through many a thread and there is lots of potential things it could be! It doesn’t help that my mechanic (a Land Rover specialist) can’t find anything at all??

I guess my question is does any one have any idea or can take a guess at what it may of been that has corrected its self??

That way I might be able to drive it and convince myself it’s all okt 😫

4th Oct 2022 3:34pm

Greyman110

Member Since: 29 Sep 2017
Location: London
Posts: 327

Yesjus wrote:
I’ll check when I next pick it up. Assuming if it’s hard it could be an internal blockage?

When this happened to mine, it turned out to be the head gasket. I also changed a lot of parts too! The reason I didn’t think it was the head gasket at first was because when I did a the reld test for gasses in the coolant, it came back negative.

4th Oct 2022 4:37pm

Yesjus

Member Since: 19 Sep 2022
Location: Surrey
Posts: 78

The mechanic has checked the block etc and done tests but your saying it could still be head gasket then?
If it was head gasket could it appear to be self corrected? ( it done it 3 drives in a row?)
My guy has had it and it hasn’t done it at all??

Don’t know if relevant but Just before doing this it sat for 2 weeks, it was when we had that really heavy rain?

Maybe water got in somewhere and has since dried out?? Maybe dirty diesel sat in tank 🤞🏻🤞🏻

4th Oct 2022 5:54pm

Greyman110

Member Since: 29 Sep 2017
Location: London
Posts: 327

I only mentioned the head gasket as my car was up and down for a while. It became predictable when it was going to go into limp mode but it took a while before that happened. It was always going up hill in 6th gear that would trigger it. If i didnt change down before it got into the red then it would become unresponsive to throttle for about 10 - 15 seconds.

It might not be the same for you but if you know the signs then you can look out for it. When it started it happened out of the blue and it was only once in a while.

I had another temp gauge issue on start up but I fixed that by cleaning the Cylinder Head Temp (CHT) contacts with contact cleaner. Cheap fix but a pain to diagnose.

If you have a scanner that can give you a live temp reading then that might be useful to see. Under normal conditions mine doesnt go over 94c with it usually being in the 89c-92c range.

5th Oct 2022 6:37pm

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