 | Home > Puma (Tdci) > Puma 2.4 cutting out repeatedly |
 
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17360   
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Replace the VCV.
Weird running and no fault codes is usually (but not always) indicative of a VCV fault. |
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23rd Sep 2020 5:14pm |
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| shropshiredefender Member Since: 05 Jun 2017 Location: Shropshire Posts: 834  
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Oddly it is worth checking the engine cooling system.
The Cylinder Head Temperature sensor is much more sensitive than temperature gauge and if the engine is slightly overheating it will introduce a misfire prior to cutting the engine which restarts easily. It feels like dirty diesel and is probably the last thing you would check! Just because you're offended doesn't mean you're right. |
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23rd Sep 2020 6:55pm |
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| Stacey007 Member Since: 25 Sep 2015 Location: Cheshire Posts: 3748
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Mine would randomly cut out while driving but no fault codes
Dashboard dials all go dead, no warning no spluttering and would do it once in 3 months or 3 times in one trip... Very unnerving on the motorway just losing all power. Sometimes it restarted without me turning the key other times I had to restart. Turns out it was the ignition barrel, the circuit must have been just missing the contacts. Its been 18 months or so changed and no issues  |
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23rd Sep 2020 6:59pm |
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| chrisc2306 Member Since: 02 Jan 2020 Location: Glasgow Posts: 60  
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Mines been doing the same recently, had a fault on the glow plug circuit, replaced the glow plugs, vcv, fuel rail pressure sensor, oil, diesel filter and coolant. It’s definitely better after that but it’ll still cut out when cold and struggle to restart for a few minutes, worse when in neutral than when it’s in a gear with the clutch down
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23rd Sep 2020 7:53pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20319
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Try bridging the clutch switch, when that fails it can cause bizarre issues and also the battery’s clamps and grounding points.
VCV like Blackwolf mentioned is another culprit. (He is far more knowledgable on said subject than me). Perhaps the new VCV was duff, perhaps contaminated diesel. Shouldn’t have needed any recalibrated or relearning. On mine I simple swapped it over and ran like a dream immediately. No cold weather now, but when there was have you noticed any orator idling revs? Usually immediately after starting and low speed under 10mph and low gear manuvering. MAF and MAP sensor cleaning is worth a shot too. These things I’ve mentioned are a few I’ve had trouble with and are fairly common it’s often these sort of things rather than anything very serious usually touch wood. If nothing else, some ideas to try out. Bear in mind with the clutch switch on a Puma don’t just unplug it. You can’t do that like a TD5. It needs to be bridged otherwise you’ll get a MIL amber dash light due to it which you’ll need to delete the DTC. Unless you have kit capable of deleting the code. Just a forewarning but a failed clutch switch can cause stalling definitely, so can the VCV. At higher speeds I’d say clutch switch stationary or low speed manoeuvring then VCV. The fittings are J.P.T. 2pole connectors. ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️ |
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23rd Sep 2020 11:32pm |
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| chrisc2306 Member Since: 02 Jan 2020 Location: Glasgow Posts: 60
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Thanks Steve I meant to say the MAF and Map have both been replaced also, going to turn off the passive immobiliser this morning and see if that has anything to do with it, I’ll let you know how it goes
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24th Sep 2020 7:07am |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20319
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Ha e you ensured the alarm fob has been synced pressing it multiple time repeals after battery disconnect?
Just another tjongbb B to bear in mind.  ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️ |
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24th Sep 2020 10:08am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6604 
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What does the instrument cluster do when the engine stops?
 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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24th Sep 2020 10:21am |
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| Zixxer Member Since: 04 Dec 2019 Location: Tipperary Posts: 17  
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Think I solved it
Replaced the pressure sensor on the end of the fuel rail Not the PRV at the bulkhead end - the pressure sensor at the front end of the rail |
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26th Sep 2020 6:49pm |
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| chrisc2306 Member Since: 02 Jan 2020 Location: Glasgow Posts: 60
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Nice one! I ordered one up to change it too. May as well I’ve replaced everything else
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27th Sep 2020 9:07pm |
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