Diagnostics and checks (1.8/2.0/1.6 Zetec-E)

Inspection and verification

1. Check the customer's complaint.

2. Visually inspect for obvious signs of mechanical damage.

Visual Inspection Table

Mechanical factors:

• vacuum line (And)
• Hose (And) / hose connections
• Pad (And)
• Positive crankcase ventilation valve (PCV)
• Crankcase vent valve oil separator

3. If an obvious cause of the problem you identified or described by the client is found, eliminate it before proceeding to further actions (if possible).

4. If the problem is not visually obvious, check the symptom and refer to the Symptom Chart.

Symptom table

State	Possible Causes	Action
•Increased pressure in the crankcase	•Pipeline (s) / hose (And) PCV • PCV valve • Oil separator for crankcase ventilation valve	• CHECK PCV system components for blockage and damage. CLEAN or INSTALL new items as needed.
	• Worn or damaged engine components	• Refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E for more information.