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Drive Belt Chirping Diagnosis

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Drive Belt Chirping Diagnosis

Step Action Yes No
DEFINITION: The following items are indications of chirping:
  • A high pitched noise that is heard once per revolution of the drive belt or a pulley.
  • It usually occurs on cold damp mornings.
  • Verify the condition by spraying water on the belt. The noise should stop momentarily.
1 Check for misalignment of the pulleys.
Are any of the pulleys misaligned?		 Go to Step 8  Go to Step 3 
2 Replace any misaligned pulleys.
Is the chirp still present?		 Go to Step 3  System OK
3 Check for bent or cracked brackets.
Are there any bent or cracked brackets?		 Go to Step 4  Go to Step 5 
4 Replace any bent or cracked brackets.
Is the chirp still present?		 Go to Step 5  System OK
5 Check for any loose or missing fasteners.
Are there any loose or missing fasteners?		 Go to Step 6  Go to Step 7 
6
  1. Tighten any loose fasteners.
  2. Replace any missing fasteners. Refer to Fastener Tightening Specifications .
Is the chirp still present?		 Go to Step 7  System OK
7 Check for a bent pulley flange.
Is there a bent pulley flange?		 Go to Step 8  Go to Step 9 
8 Replace the pulley.
Is the chirp still present?		 Go to Step 9  System OK
9 Check for severe pilling, exceeding 1/3 of the belt groove depth.
Is there severe pilling?		 Go to Step 10  -
10 Replace the drive belt. Refer to Drive Belt Replacement .
Is the repair complete?		 - System OK
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