Operation CHARM: Car repair manuals for everyone.

Initial Inspection and Diagnostic Overview

1. Verify the customer's concern by operating the engine to duplicate the condition.
2. Inspect to determine if any of the following mechanical concerns apply:

Visual Inspection Chart:









3. Note: Minor cracks in the V-grooved portion of the drive belt are considered normal and acceptable. If the drive belt has chunks missing from the ribs, a new drive belt should be installed.

Install a new drive belt if any of the following conditions exist: rib chunk-out, severe glazing, frayed cords or other concerns.
Inspect for drive belt cracking/chunking/wear.

Note: Drive belts with automatic drive belt tensioners do not require adjustment.

Note: When a new drive belt is installed or a drive belt is re-installed after a service procedure, the drive belt does not fully seat into the pulley grooves until engine has run for several minutes.

This vehicle is equipped with:
^ a V-ribbed serpentine accessory drive belt.
^ an automatic drive belt tensioner.
New drive belts must be of the same type as originally installed.
Check the drive belt condition at 96,000 km (60,000 miles) then after every 24,140 km (15,000 miles).









4. If the concerns remain after inspection, determine the symptoms and go to the symptom chart.Symptom Related Diagnostic Procedures