 | Home > Puma (Tdci) > Black smoke |
 
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2542  
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Have you a code reader to see if any diagnostic trouble codes have been recorded ?
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10th Jul 2023 12:47pm |
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| AndyS Member Since: 18 Aug 2012 Location: London Posts: 597 
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Have you replaced the injector seals yet?
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10th Jul 2023 1:02pm |
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| ginjez Member Since: 18 Sep 2011 Location: huddersfield Posts: 1777 
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No fault codes are showing and injector seals haven't been touched.
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10th Jul 2023 1:36pm |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3649  
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On overrun shouldn’t the injectos be switched off by the ECU? Strange that you see black smoke (over fuelling) during overrun. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black |
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10th Jul 2023 2:05pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2542
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Wild guess, but fuelling issues and lack of DTC’s on a 2.4 generally point to a VCV issue. However I’ve not read of it causing your specific symptoms, so someone like Blackwolf may be able to confirm if it could be the VCV in your case.
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10th Jul 2023 2:20pm |
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| barbel jim Member Since: 12 Dec 2012 Location: Northants Posts: 1458 
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IIRC wasn’t there something about the brake pedal switch ?? Something along the lines of not working causes smoke ?? I might be making it up
 but sure I herd it somewhere?? |
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10th Jul 2023 2:50pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2542
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^^^^^^^^
Do you mean the clutch switch, fitted on the Clutch master cylinder? This does interact with the engine ECU on gear changes, but expect would provide a DTC if having issues and I think the OP’s issues are not during gear changes. |
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10th Jul 2023 3:39pm |
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| barbel jim Member Since: 12 Dec 2012 Location: Northants Posts: 1458
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^^^^^
Could well be that…. never had a 2.4 but one of the random things I remembered!!  |
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10th Jul 2023 4:22pm |
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| Jem_90 Member Since: 10 May 2019 Location: Oxon Posts: 54 
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I had a faulty EGR valve that made our Landy smoke like crazy.
RAC man hit the EGR housing with a hammer (I kid you not)  and it was as good as new. https://www.instagram.com/baltic_blue_defender/ |
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10th Jul 2023 4:46pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2542
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Sticking EGR valves tend to record DTC’s
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10th Jul 2023 7:32pm |
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