Preliminary Checks

If fuel supply system is not delivering enough fuel driveability could be greatly affected. If air is being drawn into fuel injection system a NO-START - ENGINE CRANKS OKAY or a HARD START symptom could exist. If another diagnosis indicates, or if fuel supply system is suspected of not delivering enough fuel or drawing air, THE following systems should be checked:

• Any air leaks or restrictions between fuel injection pump and fuel tank will seriously affect pump output.
• Insufficient fuel in fuel tank.
• Any loose fuel component connections.
• Any hoses and lines that are flattening when engine is running, or have kinks that would restrict flow of fuel.