Initial Inspection and Diagnostic Overview

Engine - 4.2L/4.4L

Service Repair No - 12.90.09.01

Special Service Tools





Principles of Operation

Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step