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loud knocking

  1. Bad Pinion Gear - ok to drive?

    C900 Workshop
    Thank you everyone in advance for your advice and thoughts on my questions below. Some background info: I have a manual shift, 1993 Saab 900 Turbo. Noise started coming from the transmission when on the gas in the upper gears, like a knocking sound. I have been told it’s the pinion gear...
  2. Is my beloved 2.3t engine dead? Knock, screech, rattle.

    9-5 Workshop
    Hi, My '98 9-5 2.3t SE 127K cut out just before I got home yesterday, loud knocking and loss of power when I started it again. Today it seemed fine in the driveway, but when the engine warmed up after a short journey the knocking started again, with screeching, rattling and a generally what I...