 | Home > Puma (Tdci) > "False" overheating and limp mode... |
 
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| Gabriel Boff Member Since: 19 Apr 2009 Location: Rio Grande do Sul Posts: 95   
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Hi everybody!
I'd already posted something about some years ago, but since then, my problem isn't solved.... My 09' 90, after some driving in hot days, or when towing goes to limp mode every time the scangauge shows 112 degrees or more... And comparing with my father's '11 110, the 90 runs always 10 degrees hoter..... It is always around 95 degrees.... But it NEVER trowed out a single drop of radiator water, and it seems to be in normal temp sen limp mode occur.... The viscous fan almost never really engage, in the opositethe 110's viscous is always screaming a let, and i'd already chance each other and test and in the 90 it didn't engange....seems that the heat isn't be "passing" thru radiator.... No remap, no modifications, clean radiators, serviced every 10kkm in dealer, 110kkm on the clock, i bought it new, clean diesel, clean tank, i use descarbonizer every 5kkm, already changed the thermostat, the CHT, inspected the water pump.... Don't know what more to do....I use it everyday, do long trips, overlanding.....the problem does not bother me a lot....but if i tow something the problem will occur a lot... And if I force high-tech speeds in a hot day the problem will occur to... The dealer and LR Brazil tells to change ECU.... There's that history about the viger intercooler, but the fact is that when it was newer this wom't occur.... Someone coube help? |
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11th Mar 2015 1:01am |
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| Gabriel Boff Member Since: 19 Apr 2009 Location: Rio Grande do Sul Posts: 95
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After read the posted topic I saw what the ipad's corrector did.... Please, try to understand!,, Sorry about that! Best regards! |
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11th Mar 2015 1:16am |
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| Partyranger Member Since: 27 Oct 2014 Location: Gauteng, Pretoria Posts: 13  
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It seems as if we could have a similar issue..
I don't know why some vehicles run so much cooler than mine. A larger intercooler does not do anything for your CHT problem. It does make the vehicle nicer to drive but not for temps... Have you replaced your thermostat with the 82degree unit?? This also doesn't solve the problem but it does postpone the problem so that you can usually get over the hill before temps get too high I have recently installed a fan spacer, this moves the fan about 25mm closer towards the radiator. This did help a little but on a hill the temps still rise to over 100. The new 2.2 pumas come standard with a much longer fan spacer. I would recommend you try and get that first. The longer spacer should make a bigger difference. I am planning to have my radiator removed, opened and cleaned manually. I really hope this will be able to show us if and where there is blockages in my radiator system. I will keep you updated. |
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12th Mar 2015 6:22am |
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| Gabriel Boff Member Since: 19 Apr 2009 Location: Rio Grande do Sul Posts: 95
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This is the THING!!!
Why in some vehicles this isn´t occur? I change my thermostat by the only option available in the dealer.... The same that was in place, and it doesn´t change anything, the old thermostat was OK! There´s another thermostat option? And you are right! the "false" overheating always occur after get over the hill!!!! when we stop pushing the engine.... the temp rises very fast!!! I´m certanly will try the spacer!!! I thing it will help!!! But I can´t understand how, because my fan never is full engaged!!! Even when enter in limp mode!! What makes me think that the radiator isn´t REALLY HOT.... in other words, the heat isn´t "reaching" the radiator, isn´t changing heat....... But the problem with my "not full engaged" fan could be the distance that it is from radiator.......... 25mm spacer is suficient? Could I make it longer? Thanks a lot for the repply!!! I will keep updated too! Best regards! |
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13th Mar 2015 1:39pm |
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| Jay Member Since: 23 Apr 2012 Location: Veneto Posts: 27  
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sorry but ..I don't understand, but this temperature that you wrote...are of the CHT temp or coolant temp? Jay |
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13th Mar 2015 7:57pm |
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| NickH Member Since: 01 Nov 2014 Location: Halifax Posts: 204  
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when I had a 2008 puma I had the same problem, it only happened when towing or on the motorway.
Eventually the dealer said the wrong thermostat had been fitted at the factory. They replaced it and I never had another problem.  2003 Td5 90
2013 sport hse 2012 700 raptor quad 2012 siromer 4x4 tractor |
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13th Mar 2015 8:03pm |
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| bear100 Member Since: 22 Mar 2010 Location: South Wales Posts: 1913  
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The gauge shows the CHT temp there is no coolant temp
2016 Range Rover Autobiography 4.4 TDV8
2010 110 XS Utility 2.4TDCI 2010 Range Rover Sport TDV8 (gone) 2007 Discovery HSE TDV6 (gone) 1993 110 csw 200 tdi (gone) 1994 90 HT 300 tdi (gone) 1994 discovery 300tdi (gone) 90 hybrid 3.5 v8 (gone) Range rover bobtail 3.5 v8 (gone) |
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13th Mar 2015 8:40pm |
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| Eduardo Member Since: 28 Aug 2008 Location: Región Metropolitana Posts: 2109 
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Humm,
I had the same problem in special when the Defender is heavy loaded in hot days at high speeds. The behavior has been improved a lot after replace the viscous fan and the thermostat. Still happens when we reach 110 kph with head winds over 70-100 kph, with the roofrack car fully loaded and with a trailer. So really was a big effort to him. It is possible to know if the correct thermostat has been fixed? Some special number or code? Regards Eduardo MY 2007 110 SW PUMA 2.4: Big Fog of 64' MY 1994 Jayco 1207 Folding camper: "El Tremendo"  Click image to enlarge |
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13th Mar 2015 8:42pm |
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| dgardel Member Since: 30 Nov 2008 Location: Veneto (Heart & Head) Posts: 3586
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Mates please install the PEL500110 warm climate thermostat that open at 82°C full open at 89°C (the original one open at 89°C full open at 96°C)
It has the case grey colored not white pay attentions to this because on internet you can buy "fake" PEL500110 This is The solution!
Tested by me during the italian summer (40°C) with heavy trailer Click image to enlarge Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition
IID Pro MV License |
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13th Mar 2015 10:37pm |
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| Eduardo Member Since: 28 Aug 2008 Location: Región Metropolitana Posts: 2109
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I will do that
Thanks Dgardel Eduardo MY 2007 110 SW PUMA 2.4: Big Fog of 64' MY 1994 Jayco 1207 Folding camper: "El Tremendo" Click image to enlarge |
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14th Mar 2015 1:13am |
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| ericvv Member Since: 02 Jun 2011 Location: Near the Jet d'Eau Posts: 5816  
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Daniele, wouldn't it be a good thing for ALL defenders with a Puma, irrespective of which climate you live in? Even if you rarely will push the engine to the limit by heavy towing or long uphill climbing? I think to have a thermostat which is fully open at 89°C, rather than at 96°C, is very good for any engine, yes? Or, is it better for an engine to run at the standard higher temps, say around this 96°C as opposed to that 89°C? I am tempted to ask my dealer this spring to install such "real" PEL500110 thermostat. Eric You never actually own a Defender. You merely look after it for the next generation. http://youtu.be/yVRlSsJwD0o https://youtu.be/vmPr3oTHndg https://www.youtube.com/watch?v=_GtzTT9Pdl0 https://www.youtube.com/watch?v=ABqKPz28e6A https://www.youtube.com/watch?v=rLZ49Jce_n0 https://www.youtube.com/watch?v=XvAsz_ilQYU https://www.youtube.com/watch?v=K8tMHiX9lSw https://m.youtube.com/watch?v=dxwjPuHIV7I https://vimeo.com/201482507 https://www.youtube.com/watch?v=ZSixqL0iyHw |
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14th Mar 2015 5:18am |
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| Naks Member Since: 27 Jan 2009 Location: Stellenbosch, ZA Posts: 2637 
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Anyone outside of the UK should install that thermostat
--
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear 2015 Range Rover Sport V8 Supercharged
Defender Puma Workshop Manual: https://bit.ly/2zZ1en9 Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ |
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14th Mar 2015 9:48am |
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| dgardel Member Since: 30 Nov 2008 Location: Veneto (Heart & Head) Posts: 3586
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Eric, the engines runs hotter for pollution reasons If you remember few years ago engines had water at 82-88°C not like now, very closer to the 100°C..... imho engine at 85°C has lower thermal stresses ..... and, yes, have a thermostat which is fully open at 89°C, rather than at 96°C, is very good for any engine Daniele p.s. next week I'll have a surprise for you..... Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition
IID Pro MV License |
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14th Mar 2015 6:02pm |
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| ericvv Member Since: 02 Jun 2011 Location: Near the Jet d'Eau Posts: 5816
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Daniele, thanks for that. Had no idea about the fact that our standard thermostats only open fully at 96°. Agree it does not sound very good for minimizing engine stress. So think this PEL500110 is going to be on the list of things I will ask my dealer to install later this month when I will book the truck in there for the half year oils changes.
A surprise next week?..... Finally some Recaros in your truck? 
Eric You never actually own a Defender. You merely look after it for the next generation. http://youtu.be/yVRlSsJwD0o https://youtu.be/vmPr3oTHndg https://www.youtube.com/watch?v=_GtzTT9Pdl0 https://www.youtube.com/watch?v=ABqKPz28e6A https://www.youtube.com/watch?v=rLZ49Jce_n0 https://www.youtube.com/watch?v=XvAsz_ilQYU https://www.youtube.com/watch?v=K8tMHiX9lSw https://m.youtube.com/watch?v=dxwjPuHIV7I https://vimeo.com/201482507 https://www.youtube.com/watch?v=ZSixqL0iyHw |
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14th Mar 2015 6:21pm |
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