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HELP: It sounds like detonation at very low revs (MT) S60

posted by  someone claiming to be Dutchman on  Fri May 31 10:41 CST 2002 [RELATED]

Hi,

I have posted this before: At very low rev and engine tends to shut down (e.g. when parking) I sometimes hear a sound like pinging (detonation). In that case the engine is shocking. The dealer couldn't find anything.

At all driving speeds and loads in all gears there is not a sound of detonation (like it should be).

What could be the origin of this detonation sound (< 800 rev) under load and shocking engine?? Could it be the motor management software?

Who has an idea?

Greetings,

Dutchman






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