 | Home > Puma (Tdci) > Puma stalls after starting - despite searching no solution |
 
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4661  
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On a slight tangent here but oddly enough a not dissimilar problem. It's about my sex life. Same symptoms......
 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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28th Jul 2020 8:45pm |
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| thr Member Since: 17 Sep 2008 Location: Northamptonshire Posts: 34  
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Sorry Spudfan, i missed you off the response. No i am not seeing those symptoms at present, but will keep an eye out for them.
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29th Jul 2020 6:57am |
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| thr Member Since: 17 Sep 2008 Location: Northamptonshire Posts: 34
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Today I cleaned the MAP sensor, which was very sooty. Sadly this didn't solve the problem.
A new VCV arrived. When I removed the old one the O-ring half way down the shaft was perished with the edge coming off, and the socket was wet. I fitted the new one, but then it would crank but not start, I checked there were no loose cables, that all the seals were seated correctly but I couldn't get it to run. It appeared to be a cheap copy. I have ordered a denso one, so hopefully that will improve things. I fitted the old one back in and went back to the prior status of started then stalling. Here is a video in case someone spots something else. There are two attempts. The first with no throttle input. The second with a constant throttle input, although you will see the engine hunting. 10 mins I tried again and it started and drove fine. |
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29th Jul 2020 6:08pm |
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4661
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It could be a fill up with bad fuel. 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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29th Jul 2020 9:33pm |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3414  
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Curious to know what was the root cause if problem has been solved. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black |
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12th Aug 2020 4:48pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8029  
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Vcv gets my vote. Cheers
James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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12th Aug 2020 4:57pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20367
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I had this last year once, it was the VCV on its way out but occurred after using a different fuel station which I no longer use.
I wonder if there was something up with it, went back to Esso where I normally went and it never did again but I’ve changed the VCV since. Lower MPG, poor throttle response and feeling laggy and down on power are typical. And rev hunting in very cold weather. $W33T $0U7H3RN $UG4R 🇬🇧🏴🏴🏴🇮🇪🇺🇸⛽️🛢️⚙️🧰💪 |
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12th Aug 2020 5:01pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8029
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Just to add I had a non branded vcv arrive and vehicle wouldn't start either, so your not alone. Cheers
James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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12th Aug 2020 8:29pm |
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| thr Member Since: 17 Sep 2008 Location: Northamptonshire Posts: 34
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It is still not solved unfortunately. The vcv was changed as the seal was damaged anyway.
It has been with EH Douglas near Banbury for the last week. Day 1 it was serviced and passed its MOT. Day 2 they went to fiddle with some other things and it wouldn't start. As soon as they find the answer i will post it on here. |
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13th Aug 2020 11:56am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8029
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intriguing Cheers
James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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13th Aug 2020 12:50pm |
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| thr Member Since: 17 Sep 2008 Location: Northamptonshire Posts: 34
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The defender is back from the garage. The diagnostics they ran showed a cam shaft issue. They changed the sensor and it appears to be fixed, or rather after three starts it has not given me any problems yet. Lets see how the next few weeks go with my fingers crossed.
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14th Aug 2020 8:00pm |
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4661
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 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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14th Aug 2020 8:02pm |
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| thr Member Since: 17 Sep 2008 Location: Northamptonshire Posts: 34
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Just a quick update five days later that the problem still appears to be solved. As with others i probably won't be 100% certain until it has started first time 100 times, but so far so good.
Thank you to everyone on the forum for all the information and help. |
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19th Aug 2020 10:11am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17382 
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Thanks for posting the update, it is always useful to hear what the solution to a problem was since it builds the collective knowledge.
An intermittent signal from the camshaft sensor would certainly cause this problem, although failures of this sensor are relatively rare. As I recall, it is actually only used during the start-up sequence to allow the ECM to differentiate between the exhaust and compression strokes of No 1 cylinder and hence determine the synchronisation for the injectors. The crankshaft sensor output is of course ambiguous since it will indicate No 1 TDC every revolution, irrespective of the stroke. Once the engine is running, the camshaft sensor isn't needed until the next start-up. |
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19th Aug 2020 12:10pm |
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