Test Description
WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The number(s) below refer to the step(s) in the diagnostic table.
- 2: This inspection is to verify that the drive belt(s) is correctly installed on all of the accessory drive pulley(s). Wear on the drive belt(s) may be caused by mis-positioning the drive belt(s) by one or more grooves on a pulley(s).
- 3: The installation of a drive belt(s) that is too wide or too narrow will cause wear on the drive belt(s). The drive belt(s) ribs should match all of the grooves on the pulleys.
- 4: This inspection is to verify the drive belt(s) is not contacting any part of the engine or body while the engine is operating. There should be sufficient clearance when the accessory drive components load varies. The drive belt(s) should not come in contact with an engine or a body component when snapping the throttle.
Drive Belt Excessive Wear Diagnosis
| Step | Action | Yes | No |
|---|---|---|---|
|
NOTE:
Refer to BELT DRESSING NOTICE
in Cautions and Notices. DEFINITION: Wear at the outside ribs of the drive belt(s) due to incorrect installation of the drive belt(s). |
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| 1 | Did you review the Symptoms - Engine Mechanical diagnostic information and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Engine Mechanical |
| 2 | Inspect the drive belt(s) for proper installation. Is the drive belt(s) installed properly? |
Go to Step 5 | Go to Step 3 |
| 3 | Inspect for the correct drive belt(s). Is the correct drive belt installed? |
Go to Step 5 | Go to Step 4 |
| 4 | Inspect the drive belt(s) for signs of rubbing against a bracket, hose, or wiring harness. Was the drive belt(s) rubbing against anything? |
Go to Step 6 | Go to Diagnostic Aids |
| 5 | Replace the drive belt(s). Refer to Drive Belt Replacement - Accessory or Drive Belt Replacement - Air Conditioning . Did you complete the replacement? |
Go to Step 6 | - |
| 6 | Run the engine in order to verify the repair. Is there still excessive drive belt wear? |
- | System OK |