1. Visual Engine/Chassis Inspection

1. Visual Engine and Chassis Inspection

Note: For a hard start or no start concern when the engine oil temperature (EOT) is less than 15°C (60°F) carry out the Glow Plug System Operation test in this section.

Note: The camshaft position (CMP) sensor crankshaft position (CKP) sensor injection pressure regulator (IPR) and the PCM connectors are the most critical electronic sensors and actuators to inspect in no start situations.

Purpose:

The purpose of this test is to check the general condition of the engine and look for obvious causes of the hard start or no start condition.






Recommended Procedure:

Inspect the fuel system including the fuel tank and the fuel lines for kinks bends and leakage. Inspect for coolant leaks at the radiator and heater hoses. Inspect the manifold absolute pressure (MAP) sensor and the charge air cooler (CAC) for pinched hoses and leaks. Inspect wiring for correct routing and make sure no rubbing or chafing has occurred. Inspect the engine harness fuel injector control module (FICM) powertrain control module (PCM) and sensor connectors to make sure they are completely seated and in good condition.

Possible Causes:

^ Loose or leaking fuel supply lines cause the fuel system to lose its prime
^ Kinked or blocked fuel supply lines
^ Fuel or oil leaks contribute to no start conditions
^ Coolant leaks indicate engine problems
^ Electronic connectors may be damaged or incorrectly installed causing a no start condition
^ Pinched or open MAP sensor hose
^ Pinched or open CAC hose

Tools Required:

Inspection light