Yellow sludge under oil cap

Asked by GuruBLLH7 Dec 30, 2018 at 12:06 AM about the 2002 Chevrolet Suburban

Question type: Maintenance & Repair

What can be the reason my 02 Chevy suberban has a milky
film under my oil cap and dude but not in my oil

1 Answer
9,570

Mike answered 5 years ago

Also you may want to replace the PCV valve. It control the amount of ventilation the engine gets.

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