Diagnostic Aids
Clutch slipping happens when the clutch engages but slips while driving the vehicle. Inspect the clutch disc to ensure it is properly seated. Inspect for worn facings on the disc plate. Also, inspect for the disc to be covered in fluid, and for a worn or damaged clutch cover and weak diaphragm springs.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
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This step explains the parts and the operation of the clutch system.
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This step explains were to go to fix the fluid leak source.
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This step is check for worn facing or torn from the disc plate.
Step | Action | Yes | No |
|---|---|---|---|
DEFINITION: The clutch engages but slips while driving the vehicle. | |||
Did you review the clutch symptom operations and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Clutch | |
2 | Make 30-40 normal starts. Do not over heat the clutch. Does the clutch still slip? | Go to Step 3 | System OK |
3 |
Is the disc plate over heated? | Go to Step 4 | Go to Step 5 |
4 | Allow the disc plate to cool. Does the clutch still slip? | Go to Step 5 | System OK |
5 | Inspect the clutch disc in order to see if the disc is oil soaked. Is the disc plate oil soaked? | Go to Step 6 | Go to Step 7 |
Does the clutch still slip? | Go to Step 7 | System OK | |
Inspect the clutch disc for a worn facing or for the facing being torn from the disc plate. Is the facing worn or torn from the disc plate? | Go to Step 8 | Go to Step 9 | |
8 | Replace the clutch disc. Refer to Clutch Assembly Replacement . Does the clutch still slip? | Go to Step 9 | System OK |
9 | Inspect for a weak diaphragm spring. Is the diaphragm spring weak? | Go to Step 10 | System OK |
10 |
Did you find and repair the condition? | System OK | Go to Step 1 |
