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tamaz, Subaru master technician
Category: Subaru
Satisfied Customers: 1238
Experience:  Subaru certified,ASE Master technician,25 years experience
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I have bought a 2004 Subaru Outback with 4 cyl eng.Starts

Customer Question

I have bought a 2004 Subaru Outback with 4 cyl eng.Starts good has decent power > no smoke but has a knocking sound in engine.Timming chain ? Wrist pin ? or con rod ?What is the best way to determine exact problem ?
Submitted: 1 year ago.
Category: Subaru
Expert:  tamaz replied 1 year ago.

Hi,if the noise is not affecting the way the engine performs it may be a typical noise produced by this engine, can you tell me if the noise is most notable when the engine is cold then dissipates as the engine temperature rises?