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Thread: vauxhall zafira 1.9 cdti no power

  1. #1
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    Mar 2013
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    Default vauxhall zafira 1.9 cdti no power

    looking for some help i have a zafira 1.9 cdti broke down last nite engine runnig put foot on accelarator nothing happend if you leave your foot hard down it picks up a little bit lumpy and goes back to normal no light on dash and runs and drives fine after it happens has done it twice more today have been told could be dpf filter but not sure what to think after reading all the diffrent post on hear any help would be helpful thanks

  2. #2
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    May 2008
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    Read all the Zafire threads as the info is them.

    Check the swirl flaps first as in this thread : http://www.rac.co.uk/forum/showthrea...8-Dodgy-Zafira

    But whatever you do you cannot fix this without doing a diagnostic check on a proper diagnostic tool as each component is expensive.

  3. #3
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    It has been for diagnostic and no fault found but still has fault vauxhall have done regen on dpf and said that it is 98 % blocked but not convinced

  4. #4
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    Then it hasn't been for a diagnostic if all you got was 'no fault found'. Have you read the link above? Have you checked the flaps? Have you checked the DPF pressure pipe for blockage? Have you checked the EGR for blockage? Have you checked if the air flap airway is blocked?
    Any of these will cause the DPF regeneration not to work. If one is blocked then they will all be blocked.
    You do not always get a fault code for swirl flap failure. The diagnostic was a waste of time and your money.
    Even if the DPF is blocked you do not need a new one. It can be removed and cleaned.

    Google - DPF removal and you will see how easy it is to remove this problem forever at half the cost of a new DPF. If you live near Durham I can recommend a specialist that the Vauxhall dealer uses for this very job.

  5. #5
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    i have just got it back they have cleaned out egr @ thrrotle body and pipes i was told as it is 120 bhp z19dt engine that it has not got flaps in manafold told me to try that drove 2 miles same problem and the garage has said that if it still does it then definatley will want new dpf when it stop this time i felt it go before i put my foot down but other than that no fault lights nothing ??

  6. #6
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    Okay so now we know which engine you have (not the 150 bhp one). I cannot understand why they have not tried a forced regeneration. This is the process where using the diagnostic tool, the DPF is cleaned by raising the temperature in the exhaust to around 500 degrees which burns off the soot which is blocking the exhaust. There may not be any lights on your dash but the readings on the tool will show if the DPF is blocked in the exhaust pressure sensor reading.
    As above, if it were mine and they want to sell you a new DPF (which they seem determined to), I would have it removed and reprogrammed for less than half and never have the problem again.

    Anyway, suggest you take the car to a proper garage. No flaps eh? Look here: http://www.ebay.co.uk/itm/COMPLETE-I...-/321002613229

    My money is on the flaps stuck or broken. Only did a Vectra 2 weeks ago with the same symptoms and no fault codes.
    Last edited by Hometune; 26-03-13 at 23:25.

  7. #7
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    sorry forgot to say that it has had regen on dpf now 68 % ok thanks for your advise i will have a look for my self to see if i can see the flap once again thanks

  8. #8
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    Okay, a bit more info now. If the DPF is about 68% blocked then buy some DPF filter cleaner that you add to your fuel tank (car shops sell this now). Follow the instructions on the tin but basically you need to give the car a good thrash to get the regeneration working. No good at 40mph. Take it on the motorway at 70mph in 4th gear for a good 5 - 10 miles. This will raise the temperature enough to start the cleaning process.

    This is what I mean: http://www.halfords.com/webapp/wcs/s...egoryId_255221

  9. #9
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    have put some cleaner in to fuel system done 10 miles in 4 had a lovely smell but still the same pull up a junction go to pull off car idles press accelerator nothing have check for flaps has not got any according to my local vauxhall dealer as it is only 8 valve the car is automatic but what i did notice is that if you slow down without touching brake pedal it is ok press brake and it plays up could it be something to do with brake pedal switch because if you touch brake when going along engine power is cut out {a safety thing i presume } have check brake lights all working but not sure if it will have something else to tell car that the pedal is pressed ie ecu of some kind

  10. #10
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    The brake pedal switch operates both the lights and tells the ECU you are stopping - 2 circuits. The ECU then shuts off the fuel to stop the engine from trying to continue to push the car along. This will not cause the 68% blockage in the DPF.

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