External oil leak

Inspect for any of the following conditions:

• Restricted or kinked PCV hose or engine vent hose
• Damaged, incorrect, or incorrectly installed PCV hose
• Excessive crankcase pressure

Rough Idle

Inspect for any of the following conditions:

• Restricted or kinked PCV hose or engine vent hose
• Leaking (damaged) PCV hose
• Vacuum hoses worn or not properly installed

Stalling or slow idle speed

Inspect for any of the following conditions:

• Restricted or kinked engine vent hose
• Leaking (damaged) PCV hose

High idle speed

Inspect for a leaking (damaged) PCV hose

Sludge in the engine

Inspect for restricted or kinked PCV hose or engine vent hose