Have a 1996 GTI has 231,000 miles on and there is a nock when it runs what could it be?

1996 VOLKSWAGEN GTI
230,000 MILES
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JACOBOSIMON698
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It hasn't been doing all the time but there is a nock
Dec 12, 2011 at 5:12 PM
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FIXITMR
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what weight oil? does it do it hot or cold? does it get louder on rev/acceleration? can you hear it at idle?
Dec 12, 2011 at 5:22 PM
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JACOBOSIMON698
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Runs normal not or cold don't know what weight oil is used. It only sounds like a rod knocking at idale and low speeds.
Dec 12, 2011 at 7:38 PM
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FIXITMR
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idle means lower oil pressure. do you have a gauge? or get the pressure tested. enough miles for worn parts. if it does not increase in loudness with load/rpm then not likely a rod bearing.
Dec 12, 2011 at 9:36 PM