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2001 Chevy Cavalier water mixed with oil

I am helping my mother in law fix her 2001 Chevy Cavalier. It started overheating and leaking water. I checked the car and the water came from the water pump so I replaced it. Now looking at the car because it started giving engine code p0300, I pulled the spark plugs and # 4 was full of oil. So I checked the oil and water mixed with the oil. Could this be just a bad head gasket? or would she need to replace the cylinder head? What should I check on the car? I'm helping her so she can keep repair cost low but I don't want to cause more damage.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

polarcycle
  • 1392 Answers

SOURCE: P0300 Code 2001 Chevy Cavalier 2.4 twin cam

I would've started with the coil packs, modules, boots and plugs myself. They give many problems on the quad 4s?.

Posted on Jun 15, 2009

  • 62 Answers

SOURCE: my engine oil looks like chocolate milke shake

In some cases I have seen blown intake manifold gaskets cause a milkshake in the crankcase inspect the lower intake gaskets coolant passages at the end of the cylinder heads for damage. I would suggest a compression test and a cylinder leak down test befor further tear down.

Posted on Jul 02, 2009

seanpwright
  • 2030 Answers

SOURCE: 2000 Chevy Malibu- check engine light

Have the DIS module checked and the coil pack for cyl 3. If either/both of those need replaced, have it done and have the codes cleared. Then see if it clears the others.

You may need a TPS (throttle position sensor) as well.

Posted on Sep 11, 2009

  • 540 Answers

SOURCE: I HAVE A 2006 CHEVY AVEO, LESS THAN 80 MILES AGO

when run with a misfire, the cat will get loaded up with fuel, it takes awhile for it to burn out, and a code may set, on some occasions it ruins the converter, try clearing it and running it

Posted on Oct 14, 2010

  • 27 Answers

SOURCE: 1994 CHevy cavalier check engine light comes on

sounds to be a o2 sensor

Posted on Jan 02, 2011

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