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Thread: Rough lumpy idle VR6

  1. #1

    Rough lumpy idle VR6

    Ok so I need people's expertise here. I have changed the spark plug, i have got brand new ignition leads. The MAF is clean, the throttle body is schmick clean. The coolant sensor is also cleaned.
    Yet the idle on the car is still rough and a bit lumpy.
    As most online have suggested I did the Epoxy method on the coilpack. Its all good but when I turn the car on let it run and spray water on the coilpack region it gives off a spark. I have sealed all cracks as well.

    Any ideas guys?

    Thanks in advance


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  2. #2
    Join Date
    Feb 2006
    Location
    Devonport, Tasmania
    Posts
    692
    Users Country Flag
    Be careful when you clean maf or air flow sensors, they are very sensitive.

    From memory the Vr6 has a main engine loom with a round connector. Heaps of wires going through it. Located near the engine? My old Vr6 had a miss and it turned out to be a broken wire to that particular connector

    Sent from my GT-I9210T using Tapatalk
    2000 SAAB 9-5 Aero - Stage 2. 275hp 420Nm, Brew City Boost
    1986 SAAB 900 Turbo 16 S

  3. #3
    Join Date
    Mar 2011
    Location
    Inner West, NSW
    Posts
    739
    Users Country Flag
    I know mine idles rough because the engine mounts are sloppy... should really get them changed asap

  4. #4
    Join Date
    Mar 2012
    Location
    Central Coast, NSW
    Posts
    1,428
    if coilpack is sparking then it's definitely time for a new one.

  5. #5
    Quote Originally Posted by tassie_euro_mk1 View Post
    Be careful when you clean maf or air flow sensors, they are very sensitive.

    From memory the Vr6 has a main engine loom with a round connector. Heaps of wires going through it. Located near the engine? My old Vr6 had a miss and it turned out to be a broken wire to that particular connector

    Sent from my GT-I9210T using Tapatalk
    I will give that a look thanks!

  6. #6

    Quote Originally Posted by anthony--t View Post
    if coilpack is sparking then it's definitely time for a new one.
    It was cracked a bit only thats why I decided to do the whole epoxy method thing. But yeh still sparking, which is annoying only on one of the plug though, cylinder 6

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