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  1. #1

    Join Date
    21 Jul 2016
    Location
    chicago
    Posts
    3
    Saab(s)
    2005 saab 9-3 2.0 auto linear
    Thumbs Up:   0

    2.8 V6 when car idles it shakes/vibrates Check engine light

    2007 saab 9-3 aero 147k


    Hello my car feels like it struggles like its going to stall (automatic) when in idle or in reverse unless I'm moving . i took it to the mechanic and he cleaned the fuel injectors/ re=gaped spark plugs and performed fuel injector cleaning and did fuel reset trim. He said everything looked fine and the problem went away for a few days There was no check engine light when i took it in . I drove the car for a few days before symptoms came back but this time check engine light came on. I spoke to previous owner he said he replaced all ignition pack and spark plugs last year. These are the codes I'm getting



    any help?

    p0300 random/multiple cylinder misfire detected
    p0305 cylinder no. 5 misfire detected
    p0306 cylinder no. 6 misfire detected
    p0300 random/multiple cylinder misfire detected
    p0305 cylinder no. 5 misfire detected
    p0306 cylinder no. 6 misfire detected
    p0303 cylinder no. 3 misfire detected
    p0304 cylinder no. 4 misfire detected
    p0741 torque converter clutch solenoid circuit performance or stuck off

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  2. #2
    Frank
    Saab Enthusiast nordwulf's Avatar
    Join Date
    30 Jul 2010
    Location
    NW Michigan, USA
    Posts
    7,442
    Saab(s)
    previous: 2006 9-3, 2001-06 9-5, 2011 9-4X
    Thumbs Up:   38
    Do you know if they used the correct spark plugs and Saab OEM / Bosch ignition coils? If they installed the wrong spark plugs and used Chinese aftermarket ignition coils, that's where I would start and replace with the right parts.

    https://www.eeuroparts.com/Cars/SAAB...gine-Ignition/

    How old is the battery? Saabs seem to go through batteries pretty quickly and all kinds of weird electrical stuff starts to happen when the battery is on its way out.

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  3. #3

    Join Date
    21 Jul 2016
    Location
    chicago
    Posts
    3
    Saab(s)
    2005 saab 9-3 2.0 auto linear
    Thumbs Up:   0
    coils are ac Delco and the plugs ngk lfr7aix

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  4. #4
    Frank
    Saab Enthusiast nordwulf's Avatar
    Join Date
    30 Jul 2010
    Location
    NW Michigan, USA
    Posts
    7,442
    Saab(s)
    previous: 2006 9-3, 2001-06 9-5, 2011 9-4X
    Thumbs Up:   38
    A quick search shows those are spark plugs are for a Mercedes-Benz V8 engine. So start with installing the correct plugs for your engine and see if the problems go away.

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  5. #5

    Join Date
    05 Oct 2017
    Location
    BelgiŽ
    Posts
    2
    Saab(s)
    Saab 9-3 2006 2.8 Turbo V6 Hirsch
    Thumbs Up:   0
    https://www.ngk.com/product.aspx?zpid=9871
    Use these spark plugs. And gap them to 0.8 not 1.1 as NGK suggested.


    Verzonden vanaf mijn iPhone met Tapatalk

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