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2002 Mazda Atenza Sport Wagon, GY3W L3 Engine

\015 My car, a 2002 Mazda Atenza Sport Wagon, GY3W L3 Engine of 2260cc is producing a weird sound. It is a crackling sound that comes after I have driven for some time and engine is hot. The sound never comes when the engine is cold. I have uploaded the sound at http://www.lubanga.com/temp/mazda_atenza_gy3w_wierd_engine_sound.mp3 if you want to hear it. One mechanic said it is the Engine timing chain that is faulty, while another said it was due to not having enough power caused by faulty plugs, etc. At first it had completely lost power, but when I changed plugs, it gained power but sound still comes. Can anyone please advise as I'm getting desperate.\015 Posted / edited by AnonymousUser on : 15-01-2018

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