 | Home > Puma (Tdci) > Power Loss |
 
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| Eduardo Member Since: 28 Aug 2008 Location: Regi贸n Metropolitana Posts: 2110   
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I have a problem with my MY07 that is getting me quite nervous.
At high speeds (115-130 KPH) and in hot days (30-35癈) randomly (more after several hours of trip) the motor suddendly loss the power when you take out the feet from the acelerator and try to accelerate again. You can preess the aceletaror all the way down but nothing happens. The power is recovered after 4-8 seconds after to reduce the speed and all appear normal again. No MIL is on. Motor revs was in the 2000 - 3000 rpm. When the aircon is on appear to be more frecuent (but is just a feeling) The problem appear 2-3 times when I towed a popup camper last summer but the problem doesnt appear again until yesterday after a long trip of almost 400 km in a quite hot enviromnent. Air filter has been changed 10,000 km ago and has not been abused in dirty roads since (Mantec RAI is isntalled). Also the motor temp gauge was located in the middle all the time. Any ideas about what can be? Something to start? Thanls in advance! 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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20th Dec 2011 1:55pm |
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| Eduardo Member Since: 28 Aug 2008 Location: Regi贸n Metropolitana Posts: 2110
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Thanks Lorryman
I will check that first. BTW No DTC磗 pending and all original. I have a EMS so the next time I will plug it to see what happens. Cheers and thanks for the prompt answer 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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20th Dec 2011 2:14pm |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
Another thing to check would be the TPS readings in the live data especially when the power loss occurs to rule out the throttle position sensor. TPS readings, D% and E%, together should add up to 100% to show it is reading correctly throughout the throttle pedal travel arc.
Brian. |
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20th Dec 2011 2:24pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2415 
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Temp needle stays in the middle between ca. 84 and 105篊 or so. Probably you are reaching some sort high temp protection mode.
These engines get really hot when you apply full throttle on uphill driving, therefore in a diesel engine you want to shift to 5th (4th or whatever) to restrict fuel and get the fan spinning faster. Otherwise you might blow a gasket or crack the head. Puma 110" SW ............................................................. Earth first. Other planets later |
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20th Dec 2011 4:52pm |
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| Grockle Member Since: 24 Nov 2008 Location: Peak District National Park Posts: 2266  
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Hi Ed, have you checked the air cleaner also check the fuel filter. 2.4 90 XS
1968 1/32 scale Britains 109 Pick up. |
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20th Dec 2011 4:55pm |
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| Eduardo Member Since: 28 Aug 2008 Location: Regi贸n Metropolitana Posts: 2110
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Thanks to all.
I will check all the alternatives. MK: That happened in "normal" conditions in the main route (Route 5) were the slopes are not so big to force the motor to the point to activate a protection (normal driving conditions for most of the cars here). BTW, the problems appear independently of the pedal position (full trottle, or something in between) Cheers and thaks again 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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20th Dec 2011 5:28pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2415
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U can use my nanocom for some days. I can drop it the 24th. Puma 110" SW
............................................................. Earth first. Other planets later |
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20th Dec 2011 5:33pm |
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| Eduardo Member Since: 28 Aug 2008 Location: Regi贸n Metropolitana Posts: 2110
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Thanks MK for the offer.
Are the nanocom capable to save data to check it later? If so, I will accept. I have an ODBII that I can connect using a laptop and save the datas for further analysis but I need to mount all the parafernally in the car. Cheers 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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20th Dec 2011 6:20pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2415
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I guess you can save the data in the 2GB SD card comes with. Puma 110" SW
............................................................. Earth first. Other planets later |
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20th Dec 2011 9:41pm |
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| Eduardo Member Since: 28 Aug 2008 Location: Regi贸n Metropolitana Posts: 2110
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Good!!!
I have not any long travel planning for the next weeks (the probklems appears in long trips) but anyway will be very good to make some test during the next week. I can give you some "sopaipillas" in exchange 
Cheers 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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20th Dec 2011 10:31pm |
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| BigMike Member Since: 13 Jul 2010 Location: Lancashire Posts: 2253
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Does it do it no matter how full the fuel tank is?
If you change down a gear and have higher revs will it pull then? do you have a long range tank? |
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20th Dec 2011 11:10pm |
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| bell-auto-services Member Since: 08 Jul 2007 Location: North Yorkshire Posts: 2232 
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Sounds to me like simple heat soak in the intercooler with a mixture of hard or high reving driving under load for long periods is the cause. See a snippet from the mapping stratigie of the Puma below and how one of its sensors in the head is used toprotect yourengine for failure.
A perfoemance intercooler from Allisport will help with this allong with possibily if possibile a slightly slower or lower reving driving speed. This happens quite a lot in hot countrys when a car is fully loaded and worked hard for long periods. Of course as said if your intercooler is blocked with mud in the fins it will not be efficent and will cause inlet temps to rise and in turn cause higher head temps.
Pete |
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21st Dec 2011 12:09am |
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| robharvey Member Since: 14 Dec 2009 Location: Durban Posts: 86  
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Thanks Pete. I have the same problem (as do quite a few other South Africans). The general consensus here is that it is a over-heat protection mechanism, and we'll just have to live with it. Interestingly enough one of the chaps here has had his motor re-mapped, and added a larger intercooler, and he reckons his problem is solved.
I'm not keen on a re-map (sorry), but am possibly interested in fitting a more efficient intercooler. Problem is LRSA say it will void the warranty. Guess I might have to wait until August 2012 
Will fitting a more efficient intercooler make a worthwhile difference, and what are the negative effects of doing so? |
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21st Dec 2011 4:48am |
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| bell-auto-services Member Since: 08 Jul 2007 Location: North Yorkshire Posts: 2232
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Yuo wont have and ill effects of fitting an intercooler to the car its self its only warranty you need to think about though it will for sure help the car. Have a look around at possibily putting a cooling fan on the intercooler and possibile spraying cold water onto it to give a chill factor this may help.
If you look at a product called aquamist you will get some ideas but I think a simlar kit can be made from cheaper parts and should not effect your warranty. Pete |
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21st Dec 2011 8:18am |
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