Symptom Chart
WARNING: This page is about a different variant/trim than selected.
| Symptom | Possible Sources | Action |
|---|---|---|
| Accessory drive belt noise | Accessory drive system | Use a stethoscope or other listening device to determine the source of the noise. INSTALL new components as necessary. TEST the system for normal operation. |
| Accessory drive belt incorrectly installed. | CHECK the accessory drive belt is correctly installed in the pulley grooves. INSTALL a new accessory drive belt as necessary. REFER to: Accessory Drive Belt . TEST the system for normal operation. | |
| Pulley(s). | CHECK the pulley(s) for damage, freedom of rotation, stone entrapment and alignment. INSTALL new components as necessary. TEST the system for normal operation. | |
| Lubricant or other contamination. | CHECK the accessory drive belt for contamination or damage. RECTIFY the source of the leak and INSTALL a new accessory drive belt. REFER to: Accessory Drive Belt . TEST the system for normal operation. | |
|
NOTE:
Chirp is defined as a twittering noise, often intermittent Accessory drive belt chirp |
Pulley misalignment (usually evident at idle). | CHECK that the accessory drive belt is running centrally on the flat pulleys. TEST the system for normal operation. CHECK the pulleys for excessive end float and bent flanges. With the engine running at idle, use a stethoscope to identify the source of the noise. INSTALL new components as necessary. TEST the system for normal operation. |
|
NOTE:
Rattle is defined as a metallic knocking noise Accessory drive belt rattle |
Loose components or hardware. | CHECK the components or hardware for correct installation and tighten as necessary. TEST the system for normal operation. |