Diagnostic information
Excessive drive belt wear is usually caused by improper installation or use of the wrong belt.
Minor misalignment of the drive belt pulley will not cause excessive wear, but may likely cause increased belt noise or may cause the belt to slip off the pulley.
Excessive accessory drive pulley misalignment will cause excessive wear and may also result in belt slippage.
Description of the test
The numbers below refer to the operations in the diagnostic table:
2. This inspection is to determine if the drive belt is installed correctly on all accessory drive pulleys. Worn drive belts can be caused by being positioned on the wrong pulley track.
3. Installing a drive belt that is too wide or too narrow will cause it to wear out. The ribs of the drive belt must match all the grooves on the pulleys.
4. This inspection should determine if the drive belt contacts any engine or body components while the engine is running. There should always be sufficient clearance when the load on the accessory drive components changes. The drive belt should not contact the engine or body components under any conditions.
| Step | Operation | Values | Yes | No |
| 1 |
Have you reviewed the diagnostic information Symptoms - Engine Mechanical and performed the necessary inspections?
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Jump to operations 2
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Go to item Symptoms - Engine Mechanical
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| 2 |
Check that the drive belt is installed correctly.
Is the drive belt installed correctly?
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Jump to operations 5
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Jump to operations 3
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| 3 |
Check that the correct drive belt is installed.
Is the correct drive belt installed?
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Jump to operations 5
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Jump to operations 4
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| 4 |
Inspect the drive belt for signs of rubbing against the bracket, hose, or wiring harness.
Is the drive belt rubbing against anything?
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Jump to operations 5
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Go to Diagnostic Information
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| 5 |
Replace the drive belt. See. Section 1C1, Engine Mechanical - FAM II 2.4D.
Has the replacement been made?
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-
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Jump to operations 6
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| 6 |
Start the engine to check the repair results.
Is there excessive wear on the drive belt?
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The system is normal
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