Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Crankcase Ventilation System Diagnosis
2000 Saturn LW2 V6-3.0L VIN RSECTION Crankcase Ventilation System Diagnosis
With this system, any excessive blow-by in system (from badly-worn engine, a sustained heavy load, etc.) is exhausted into intake manifold and is drawn into engine. A proper operation of the PCV system is dependent upon a sealed engine. If oil sludging or dilution is noted, and PCV system is functioning properly, check engine for other causes and correct as necessary in order to ensure that system functions as intended.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.