Engine "Knock" or Misfire 2008 Turbo X SC (280 hp V6) - Saabnet.com Bulletin Board
This has been a persistent problem since the car was a couple of years old:
When I punch it, like leaving a toll booth or passing, there starts to develop an engine knock sound. "Knock" as in preeignition seems unlikely -- wouldn't there be a knock sensor that would back off boost like on my 1988 900T? So I always figured it was one or more coil acting up and it was misfiring that sounded like knock. Then eEuroparts offered Bosch coils reduced from around $140 to around $40 today. So I bought six. As I understand it, you need to pull the intake manifold, so I bought a gasket too. Comments on (1) is there a knock sensor (2) should 6 Bosch solve it (3) did I waste money because a gasket isn't needed. (on sale too)
posted by 198.211.16...
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