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Thread: help needed

  1. #1
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    Default help needed

    hello threre i am a new member so if i get it wrong dont all shout at once,ihave just bought a signum 1998cc year2003. it was missing when i bought it but was fine on motorway work so the first run was to see family in liverpool from essex running was good three hours but running local its missing and engine shakes and stalls had in the shop three times all come up with something but not the right thing, trying to find a manual for this car but thats not easy hope someone can help thanks rayeg 1935.http://www.vectra-c.com/forum/images/smilies/smile.gif

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    derv or petrol ??

  3. #3
    Ex RO - East Region soulman's Avatar
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    RM postcode so not to far from me ... as above are you a deisel or a 2.0T petrol .

    guessing a deisel .

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    Ex RO - East Region soulman's Avatar
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    RM postcode so not to far from me ... as above are you a deisel or a 2.0T petrol .

    guessing a deisel .when it went into the garage did they get any fault codes ???????
    Last edited by soulman; 25th February 2012 at 20:37.

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    Hi its petrol CODE 300.
    Last edited by rayeg1935; 25th February 2012 at 22:53. Reason: MORE ANSWERS

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    Ok, let's clarify, you have the 2.0T PETROL (yes?), that's the Z20NET then. That's a Saab-developed engine, so the Haynes manual for the 2002- Saab 9-3 covers it. As for your fault, start with the easy stuff first, change all 4 spark plugs and use the correct replacements, which are NGK PFR6T-10G. Even if the car has been serviced regularly, the plugs don't get changed at every service, so sometimes they get missed out too often. Have a good look at the condition of the plugs you remove, to see if one or two look worse than the others, that might imply the ignition coil for that cylinder is failing. Fault code P300 just confirms that it's most likely to be plugs/coils etc.

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    thanks for the tips your right on all counts but the first garage charged me for new plugs but i will pull them out the last garage told me it was one coil pack putnew one in but stayed the same but good garage said no charge sent coil back.

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    There's no coil "pack" in this engine, there are 4 separate coils, so only one would have been replaced, and if it was put on a cylinder that didn't have the problem, then it won't have helped.

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    If you want something in your hand, there is a Signum buyers guide in this months Car mechanics mag, might be worth a purchase?

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    i got onto vauxhall spares in thurrock who said they had nothing listed for this car.

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