i have a chevy cavalier 2003 brown milky oil in aircleaner car does miss too p0300 code i chnged timeing chain ign module still has a miss i even changed plugs

30

Asked by Jun 12, 2012 at 09:46 PM about the 2003 Chevrolet Cavalier

Question type: Maintenance & Repair

6 Answers

257,555

Possible blocked PCV. Check out this link...http://www.justanswer.com/chevy/14iyi-2003-chevy-cavalier-oil-no-motor-oil-coolant.html

4 of 4 people found this helpful.
70,875

Yup, my niece had the same thing once in her '93the Corcica V6. Jim

275

Check the compression. You may have a blown head gasket

1 of 1 people found this helpful.
70,875

Sounds like a possible head gasket. Code P0300 is random/multi-cylinder misfire. When you did were any of the electrodes clean or wet. If so it's gonna be a head gasket. Run a compression test to be sure. If 2 adjacent cylinders are very low or read zero psi. It's definatly a head gasket. -Jim

1 of 1 people found this helpful.
70,875

That was supposed to read, when you did the plugs were any of the electrodes clean or wet. Sorry.

sounds like a head gasket . be sure before starting a job like that & have a good machine shop to do the head.

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