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52 laguna noise when blower is on?

when the internal blower is running i get a knocking sound from the engine area, this increases with revs, any thoughts?
ian, November 2006
Probably a bit of tree debris/twig that fallen into the vent tract, this will knock on the fan blades as it rotates, I have had this happen in the past. It may be that the bearings are on the downward spiral but this is usually more of a rumble. Have a look under the bonnet for the intake to the interior fresh air system, feel around and see if theres anything in there !

Good Luck

SB, November 2006
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