I recorded this audio yesterday morning. Last 10 seconds of the file is what interests me. I am not sure if this is VANOS, possibly loose header manifold bolts, loose timing chain? The noise goes away after a few seconds or if you give it slight gas. Would love to know if anyone heard this same noise. The attachment is a small m4a file.
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Cold Start rattle, need a good ear please
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No clue 😆 I changed the solenoid, cleaned the valve body, and replaced seals on the sealing plate. I am planning on changing my valve cover gasket, and will service the VANOS at the same time. 130K miles.Originally posted by jayjaya29 View PostLama tells everybody their vanos seals are shot. <3 Lama though
I don't think its loose header bolts, thats more of a sharp ticking noise.
When/has the vanos ever been serviced?
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The reason I asked about the header bolts is I smell either exhaust or whatever it is at 5-8K when I step on it hard, so thought maybe a header gasket is not sealing well due to loose boltsOriginally posted by jayjaya29 View PostLama tells everybody their vanos seals are shot. <3 Lama though
I don't think its loose header bolts, thats more of a sharp ticking noise.
When/has the vanos ever been serviced?
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