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flat spot

  1. [Insignia] [08-17] Flat spot between 3000/4000 RPM

    Cavalier, Calibra, Vectra, Signum, Sintra & Insign
    Hi all again My 2010 insignia cdti 160 has an intermittent flat spot at times between 3/4000 rpm like it struggles ? I know the dmf is starting to get a bit worn in it but dont think that should effect it . Any ideas would be appreciated thanks !
  2. [Signum] [03-08] 2.2 Direct Signum 2003 not starting

    Cavalier, Calibra, Vectra, Signum, Sintra & Insign
    I have had my Signum for a couple of years, however it has always had a bit of a flat spot between 2000-3000 revs, which I decided to try and fix. Now it's sat on the drive and won't start. Sorry for the essay! Here's the background: Having read the forums and searched the internet the general...