 | Home > Puma (Tdci) > 2008 puma with intermittent starting problems |
 
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| David.fer Member Since: 22 Nov 2014 Location: Aberdeenshire Posts: 3   
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Can Anyone please help!
I have a 08 puma that sometimes will fire up for a second and immediately cuts out, when I try again the engine barely cranks and then after that it refuses to do anything. Somtimes it will start after a few hours. Please see video http://m.youtube.com/results?q=defender%20...s&sm=3 The problem seems to occur after wet weather. The rover is basic spec and has no imobiliser or key fob, I have however seen it has a 10as unit and a passive coil around the ignition. The engine bump starts no problem and runs fine. no problems come up on the diagnostics. This is a severe pain in the backside and if anyone can help I will be most grateful. |
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22nd Nov 2014 6:39am |
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| carrotbay Member Since: 18 Aug 2013 Location: Northants, UK Posts: 699 
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Hi
I have this problem all the time. It seems to be a problem with the immobiliser. I find that if I stay in the Landy with all doors closed, lock on the key fob, wait until the alarm light stops flashing quickly (about 20 seconds), unlock and then it will start fine. Does it work for you? Phil. 2008 Defender 110 XS SW - M57N2 / 6HP28X |
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22nd Nov 2014 11:47am |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
I doubt it is the 10AS. If it was an issue with the immobiliser it would not crank nor would it bump start everytime. Try a relative compression test, I would be looking at the amperage to see if it drops away completely. Make sure the starter motor electrical connections are secure and check the cabling and let us know how you got on.
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22nd Nov 2014 12:03pm |
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| David.fer Member Since: 22 Nov 2014 Location: Aberdeenshire Posts: 3
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This does not work for me unfortunately. The rover does not have central locking and no fob or alarm. |
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22nd Nov 2014 12:09pm |
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| munch90 Member Since: 26 Oct 2013 Location: guildford Posts: 3558 
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all cars had to have some form of imoblizer fitted after 1st oct 98 , so would say yours should have one fitted , as you say there is a as10 unit and a barrel coil fitted otherwise why bother fitting it
I would say some how the imobilizer has either been programmed out or there is a chipped fob tucked up under the dash somewhere or something starting then cutting out within a couple seconds is 99.9% that the as10 and engine ecu are not commucating propley or maybe getting big voltage drop that's making a unit lose power as for not cranking right after sounds more like a connection problem , dodgy earth , starter , battery etc watching the video , I would say you have a connection , earth , starter , battery problem ,but would say you still have a imobilizer issue if only as a sercurity measure Last edited by munch90 on 22nd Nov 2014 10:05pm. Edited 3 times in total |
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22nd Nov 2014 12:25pm |
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| Fifth Horseman Member Since: 08 Mar 2011 Location: Lanarkshire Posts: 322
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When the starter does not work at all, can you hear a click from under the driver's seat (starter relay) as you move the key to the start position? if you can then the problem is less likely to be 10AS related. If no click then it could be the relay or the 10AS - the starter relay gets its earth from that.
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22nd Nov 2014 12:31pm |
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| Phoenix90 Member Since: 04 Mar 2012 Location: Cornwall Posts: 377 
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Mine had a similar problem to this and it turned out to the connecting bar between the starter motor and the solenoid had come loose at the solenoid where it bolts on. It would start to turn the starter over but the resistance would be to high for it to work under load.
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22nd Nov 2014 3:54pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17328 
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Phil, this is classic passive immobiliser. Try turning off the PI with Nanocom or similar and see if it stops happening. With PI turned off the vehicle is still immobilised when locked so it isn't a major security weakness. PI especially on Pumas is well known for eccentric behaviour. |
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22nd Nov 2014 6:28pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17328
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If you are suffering from irregular cranking or failure to start, an easy and worthwhile check is to make sure that the the main "ignition on" and starter relays under the driver's seat are tight in their sockets. It is very common to find that they're loose, and this can cause crank failure and engine failure-to-run problems.
The connections can be tighten by carefully bending the tangs on the relays into a slight banana shape. It should be quite hard to pull the relays from their sockets - it should feel as though the socket's going to come off its tab before the relay comes free. |
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22nd Nov 2014 6:39pm |
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| nickhodgson Member Since: 08 Dec 2009 Location: Zambia Posts: 174 
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Hi
I have a ROW spec car that does not have any form of alarm (as far as I know) and had a poor starting issue. The engine turned over a number of times and seemed to fire on one cylinder before it started. One started it ran fine and later restarted fine. It has fuel etc but had not been used for a few weeks. There is a green box behind the dash that I believe is the 10AS unit set up to dim the interior lights. Its damp here....could this unit affect starting on a non alarm car? Thanks Nick 1995 300tdi Defender 90 P/UP 2011 Puma Defender 130 D/C 2000 300tdi Defender 110 P/UP 2015 Discovery 4 SDV6 HSE |
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19th Jan 2015 5:17am |
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| K9F Member Since: 12 Nov 2009 Location: Bournemouth Posts: 9610 
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Yes I would say so if it is fitted. Indirectly there is a couple of feeds to your OBD diagnostic socket and another via your instrument closter to the enging ECM and also an 'immobiliser in' feed!
 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!! |
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19th Jan 2015 8:51am |
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| David.fer Member Since: 22 Nov 2014 Location: Aberdeenshire Posts: 3
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Hi guys I have an update on the defender starting saga
So just recently the problem as described before has been happening more frequently and persisting for longer. I noticed whilst trying to start the Landy there was a burning plastic smell from the engine compartment. There is a plastic holder were the glow plug wire joins on to the main wiring see photos The Landy has been picked up and taken to a garage tonight. So hopefully when it gets to the garage it still won't start. Last time it went it started no problem and worked fine for weeks. The rac chap suggested it could be a wiring loom problem what do you guys think? The Landy also would not bump start this time either. |
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6th Feb 2015 6:08pm |
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| munch90 Member Since: 26 Oct 2013 Location: guildford Posts: 3558
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Common for the plastic bit to melt on transits and burn the wire in the loom
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6th Feb 2015 9:54pm |
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