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Mogboy



Member Since: 22 May 2013
Location: Brisbane
Posts: 31
Australia 2007 Defender 110 Puma 2.4 SW Belize Green
Intermittant loss of throttle response Puma 2.4
Last week, my 2.4 Puma suddenly lost throttle response in peak hour traffic...

It was driving well, going through the gears from traffic lights. 1st & 2nd as normal, then 3rd gear and backed off with the traffic flow. Reapplying the accelerator and ZERO response. Tickled it several times, and power again. (I'm not sure whether this brought it back to life, or if there was a lag before it corrected.) This was the same pattern until I reached my destination. Which ever gear I eased up in, and reapplied the throttle it would go dead.

There was no engine malfunction light, and when I restarted the engine to head home again after 15 minute stop, all was well. Back to normal again. I had thought it might be the potentiometer (?) thing connected to the accelerator pedal. It's happened once again driving to the LR specialist here, but they could find nothing wrong. Definitely not the fuel filter, or tank breather.

Anyone else had this happen to throw any light on things?

Cheers
Mogboy
Post #237637 22nd May 2013 12:13am
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pope10001



Member Since: 15 Oct 2011
Location: Dulverton
Posts: 489
United Kingdom 1992 Defender 90 200 Tdi HT Zermatt Silver
Could it be the age old problem of the Tdci reaching 110C and cutting out all power until it cools down again?
Post #237646 22nd May 2013 6:33am
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Mogboy



Member Since: 22 May 2013
Location: Brisbane
Posts: 31
Australia 2007 Defender 110 Puma 2.4 SW Belize Green
Thanks Pope, but I don't think so, as it was running at normal, and only played up when I throttled back, and went to accelerate. I did have the overheat power cut back a few years ago, but nothing like that this time.
Post #237649 22nd May 2013 6:44am
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BarneyRubble



Member Since: 08 Mar 2010
Location: Naphill
Posts: 103
England 2010 Defender 90 Puma 2.4 HT Stornoway Grey
Not quite the same, but did have power loss whilst driving - turned out to be a loose relay connection under the drivers seat.

http://www.defender2.net/forum/topic7371.html

Had LRA check it more than once without it being spotted, so be thorough and tighten all the spade connectors. Barney

D4 - 2016 Graphite, Montalcino Red
Written Off - 2010 90 Hard Top, Stornoway Grey
Post #237671 22nd May 2013 8:05am
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19668
United Kingdom 
Not likely but it wasn't whilst warming up was it? Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #237680 22nd May 2013 8:42am
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Mogboy



Member Since: 22 May 2013
Location: Brisbane
Posts: 31
Australia 2007 Defender 110 Puma 2.4 SW Belize Green
Hi Custom90steve
No...the engine was at full operating temperature each time. I've got a 2000km trip through some isolated areas next week, so hopefully if it plays up, I'll still be able to reboot/reset it OK.
Post #237927 23rd May 2013 12:54am
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2605
South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
Puma owner had the same/similar issue, turned out to be a punctured intercooler hose. --
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
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Post #237931 23rd May 2013 6:01am
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deep down



Member Since: 02 May 2012
Location: France
Posts: 204
Wales 2007 Defender 110 Puma 2.4 DCPU Zambezi Silver
It sounds very similar to my problem, the relays under the seat had actually started to come out with all the recent vibration.

After re-seating them all I've had no more problems.
Post #237939 23rd May 2013 7:25am
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Mogboy



Member Since: 22 May 2013
Location: Brisbane
Posts: 31
Australia 2007 Defender 110 Puma 2.4 SW Belize Green
New intercooler hoses here, Naks, so pretty sure it's not that.

Thanks Deepdown, I'll check that out for sure. I regularly drive plenty of rough dirt roads.
Post #238165 23rd May 2013 10:36pm
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HotelCharlie



Member Since: 20 Oct 2011
Location: Kavala, Greece
Posts: 25
Greece 2007 Defender 110 Puma 2.4 CSW Alpine White
Sorry to say, I got the same problem yesterday.
Upshifting 3rd, 4th and 5th, acceleration has a "hole" of a second or two before reving up normally.
Happened after 10 minutes of driving in the city and for the rest of the trip.
And nothing during all the following trips.
Happy it has stopped, but I know something is wrong. <img>
Post #238837 26th May 2013 10:40pm
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Splitpin



Member Since: 07 May 2013
Location: Midlands
Posts: 100
United Kingdom 
Maybe a sticking throttle body?

Or an intake air leak or egr issue
Post #238858 27th May 2013 7:01am
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HotelCharlie



Member Since: 20 Oct 2011
Location: Kavala, Greece
Posts: 25
Greece 2007 Defender 110 Puma 2.4 CSW Alpine White
I was told today by my local stealer that my problem comes from the EGR with fault code P1402 and P0403.
Only problem is this codes become normal when you get a remap with EGR electronicaly blocked like I have.
And they offered to replace the EGR (of course!) speaking of a Technical Bulletin 300296 about a new EGR replacing mine!!
Anybody got lights on this Tech Bulletin 300296, as I don't have access to Topix.

Thanks <img>
Post #247095 27th Jun 2013 2:39am
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Marius



Member Since: 21 Dec 2010
Location: South Africa
Posts: 231
South Africa 2011 Defender 110 Puma 2.4 SW Keswick Green
Friend of mine had the same problem - turned out the head gasket was leaking........
Post #247098 27th Jun 2013 6:06am
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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
Intercooler hoses do have a tendancy of chafing on the pulley/flywheel. Still worth a check. Thumbs Up

A few pointers perhaps?

http://www.defender2.net/forum/topic9557.html?highlight=chafing

2.2 related but mine was chafed on my 2.4

http://www.defender2.net/forum/topic20804.html?highlight=rubbing 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 #247100 27th Jun 2013 6:53am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16946
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
HotelCharlie wrote:
... EGR with fault code P1402 and P0403....


I don't see how this could be the case if you have a remap that disables the EGR.
Post #247167 27th Jun 2013 11:43am
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