Diagnostic Aids

If no fault is found and cause of NO-START - ENGINE CRANKS OKAY condition has not been found, check for the following conditions:

• Proper cranking speed, 100 RPMs (cold) or 180 RPMs (hot). Scan tool can be used to check cranking speed by pulling FUEL SOL fuse and monitoring engine speed on scan tool while cranking.
• Water or foreign material in fuel system.
• Base engine mechanical fault.
• If Crankshaft Position (CKP) sensor and optical/fuel temperature sensor are disconnected or malfunctioning at same time, a NO-START - ENGINE CRANKS OKAY condition will exist.