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Dashboard buzz S70 1998

posted by  bryan goldberg on  Thu May 22 04:23 CST 2003
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last visit: Wed Jun 26 12:41 CST 2013
[RELATED]

Since the noise only occurs when the engine is running, it may be the air pump. There have been posts about the relay on them going bad. Usually the CEL come on.

This part located in front of and below the battery on LH drive models (behind the air dam). It is supposed to come on for @2 minutes to pump air into the exhaust system until the catalytic converter comes up to temp.

Check the archives. The mechanics on the board will be able to provide you with expert diagnostic advice.

Good luck,

Bryan






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