2000 Chevy Cavalier Engine knocks

2000 CHEVROLET CAVALIER
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IRENE POINDEXTER
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Noises problem
2000 Chevy Cavalier 4 cyl Front Wheel Drive Automatic

A seller is selling a 2000 Chevy Cavalier with a 2.2 Liter 4-cyclinder engine. The seller said that the car ran just perfect until He changed the oil 2 weeks ago and then the engine knocking started. What could be the problem with an oil change making an engine start to knock?
Sep 12, 2010 at 9:09 PM
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RASMATAZ
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Check the oil pressure with a mechanical gauge,if normal replace the oil pressure switch. If abnormal could mean oil pump and/or engine bearing.
Sep 12, 2010 at 10:47 PM
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