1 - Visual Engine/Chassis Inspection

1. Visual Engine/Chassis Inspection







Purpose:
This is a visual inspection to check the general condition of the engine and look for obvious causes of hard start or no start conditions.

Recommended Procedure:
Inspect fuel system including fuel tank and fuel lines for kinks, bends and/or leakage. Check oil lines and high pressure pump in engine V for major oil leaks. Inspect for coolant leaks at radiator and heater hoses and check coolant level. Inspect MAP sensor and intercooler for pinched hoses and leaks. Inspect wiring for correct routing and make sure no rubbing or chafing has occurred. Inspect the in-line 42-way, Injector Driver Module (IDM), 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 could cause fuel system to lose prime.
- kinked or blocked fuel supply lines will create fuel restriction.
- Massive fuel or oil leaks could contribute to no start conditions.
- Coolant leaks could indicate serious engine problems.
- Electronic connectors may be damaged or not installed properly causing a no start condition. The Camshaft Position (CMP) sensor and the Injection Pressure Regulator (IPR) are the two most critical electronic sensors/actuators to inspect in no start situations.
- Pinched or open MAP sensor hose.
- Pinched or open intercooler hose.

Tools Required:
Inspection light