Symptom
Fuel aeration will exhibit one or more of the following characteristics:
• Engine stall during operation
• White to black smoke during cranking
• Rough running engine
• Extended engine crank time (hard start)
• Fuel pressure slow to build while cranking
• Excessive fuel pressure while cranking
• Pulsating fuel pressure during crank or engine running at idle.
• Difficulty priming fuel system
Cause
• Leaks in fuel supply to fuel pump
• Loose fuel injector hold down
• Missing/damaged stainless steel injector gasket
Tools
• Fuel Pressure Test Gauge
• 1 to 5 gallon bucket
• Fuel pump supply line
• Fuel filter housing supply line fitting (Part No. 3533425C2)
• Fuel Pressure Test Adapter
• Fuel/Oil Pressure Test Coupler
