Audi A6, 1996 - Strongly knock of the valve.

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Old 07-30-2002, 08:24 PM
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Default Audi A6, 1996 - Strongly knock of the valve.

I don't know if it is can be normal.
When the engine is working on 800-900 rpm I can hear a strongly knocking of the valves. It is unusual for other cars that I've had. Should I do something with this? Is it dangerous? What should I do to reduce this knocking.

Many thanks!
Old 07-30-2002, 10:04 PM
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That soesn't sound good. Does it do it after the engine has run a few minutes? Just starting up?
Old 07-31-2002, 06:54 AM
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Default This knocking is obvious when the engine is hot.

This knocking is obvious when the engine is hot.
When the engine is cold it is not so obvious.
Thanks!
Old 07-31-2002, 07:22 AM
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Default Oops - that sounds even worse...

Can you pin point location? i.e. long screw drive with blade end on valve cover and handle end to your ear and move it across V/C until it is loudest or is it even coming from the valve cover(s)?
Old 07-31-2002, 11:43 AM
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it looks like the noice coming from injectors more than from valves
Old 08-01-2002, 04:36 AM
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Anyone else - not my area of expertise...
Old 08-01-2002, 11:29 PM
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Thanks! I appreciate for any try.
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