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') revs then when i get to the top it gos back.it has hapened a few times no.it has had a remap
| The Boy Member Since: 28 Aug 2008 Location: East Northants Posts: 1459   
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Sounds like it is getting too hot and going into safe run.
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14th May 2012 7:00pm |
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| chopperpk Member Since: 14 May 2012 Location: sunderland Posts: 32  
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hi there wots it off do u no.and how can it get sorted thanks paul cycle
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14th May 2012 7:04pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731  
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Mine's been doing similar (been 30+ degrees here). I had an engine blanket which I've now removed. My engine coolant was low. I've also cleaned the MAF with some canned air. Hasn't happened since.
I think it may be one or more of: 1) heat building up at the head CHT sensor - thanks to Lorryman100 - see: http://www.defender2.net/forum/viewtopic.php?p=144571#144571 2) Grubby MAF 3) Stuck EGR (unlikely as your remap probably keeps it closed) 4) Do you have a RAI? Restriction of air flow in hot weather plus 1) - 3) Let us know if you get an answer 
Matt Tell someone you love them today because life is short. But shout it at them in German because life is also terrifying and confusing... |
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14th May 2012 7:43pm |
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| chopperpk Member Since: 14 May 2012 Location: sunderland Posts: 32
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thanks i will have a look at that thanks cycle
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14th May 2012 7:57pm |
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| big steve Member Since: 24 Dec 2009 Location: hertfordshire Posts: 2456 
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has it been off roaded mine doen it and the radiator was full of mud ?
be worth looking at the radiator and giving it a rinse through steve 2015 2.2 tdci hardtop xs 3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P hybrid turbo in build -done ready to fit ashcroft atb in transfer box 6 speed auto in build |
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14th May 2012 8:14pm |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
When it loses power going uphill does the engine sound laboured? Or does it just level off at 3000 revs and fails to deliver the power?
As others have said check the coolant level is ok and the radiator is not obstructed. Also can you hear the viscous fan when the power loss happens? If the engine is overheating then the viscous should be roaring due to the high coolant temp. Feels more like a Boost issue to me and I would be checking the Turbo actuator control bar is moving freely and not binding. The electronic sensor for Boost is the MAP sensor mounted on the inlet manifold and if this is faulty you will lose active boost so it is worth giving it a clean as are the plug connections with an electrical contact cleaner. Map Sensor  Click image to enlarge Click image to enlarge Click image to enlarge Turbo actuator control bar. Check that it can move and it should feel quite loose at the actuator arm and at the vane control arm. Click image to enlarge It is very hard to help with these kinds of issues as the vehicle is not in front of us, but the more info you can supply the better the chances are that someone on here can help you.
HTH Brian. Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated  |
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14th May 2012 9:12pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Learning all the time
Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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14th May 2012 9:39pm |
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| BigMike Member Since: 13 Jul 2010 Location: Lancashire Posts: 2253
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Yet another all encompassing reply from Brian. Awesome
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15th May 2012 8:18am |
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| Marius Member Since: 21 Dec 2010 Location: South Africa Posts: 231  
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This happened to a friend of My'n. Traveling up from Durban to Pretoria. It ended up being an overheated engine = head gasket sprung a leak. Had to be redone.
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15th May 2012 11:44am |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Other symptoms, surely? Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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15th May 2012 11:45am |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
When the head gasket goes you can usually see where it is leaking from. Other symptoms are, coolant dilution of the engine oil is indicated by a mayonnaise appearance of the oil and coolant mixture as seen on the dipstick. You can also get oil mixed in with the coolant as well. There ill be a loss in performance due to poor compression. There are several tests you can do including a compression test and a leakdown test with compressed air. The list of symptoms for poor compression is pretty high but they can also apply to other issues like, incorrect valve clearance, sticking valves, worn or broken valve springs as well as a blown head gasket. You may also get blue/white smoke in the exhaust but worn valve stems and guides can also be to blame. Best way to check is to look under the bonnet and follow the head gasket all the way around the block and look for any leakage.
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15th May 2012 2:57pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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15th May 2012 3:11pm |
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| chopperpk Member Since: 14 May 2012 Location: sunderland Posts: 32
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hi orl hi had it to a landrover garage and thay put it down to a brocken air flow miter .i had a after market air filter in.and thay said it was of the oil off the filter naks the miter.so fingers crossed
.but going to clean the map sensor this weekend.wot do u use.could u use wd40 ok. cycle |
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18th May 2012 4:54pm |
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| chopperpk Member Since: 14 May 2012 Location: sunderland Posts: 32
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do u need gaskets for the exhaust.im changeing the senter box for a strait throw pipe. cycle
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18th May 2012 5:08pm |
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