Engine Cranks Slowly

Inspect the following items:

• Battery-Perform the Battery Inspection/Test. Refer to Battery Inspection/Test .
• Wiring-Inspect the wiring for damage. Inspect all connections to the starter motor, the solenoid, the battery, and all ground connections. Refer to:
  • Circuit Testing
  • Wiring Repairs
  • Testing for Intermittent Conditions and Poor Connections
  • Connector Repairs
• Engine-Verify that the engine is not seized.

If the battery, the wiring, and the engine are functioning properly, and the engine continues to crank slowly, replace the starter motor. Refer to Starter Replacement (RPOs LZE/LZ4/LZ8) .