Pinpoint Test B: Clutch Chatter, Rattle Or Shudder

Manual Transaxle and Clutch

Pinpoint Tests

PINPOINT TEST B: CLUTCH CHATTER, RATTLE OR SHUDDER

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B1 CHECK THE ENGINE OR TRANSAXLE MOUNTS

- Inspect all the engine and transaxle mounts for looseness or damage.
- Are any of the engine or transaxle mounts loose or damaged?

Yes
TIGHTEN or INSTALL new engine or transaxle mounts. TEST the system for normal operation.

No
GO to B2.

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B2 INSPECT THE PRESSURE PLATE BOLTS

- Inspect the pressure plate-to-flywheel bolts.
- Are any of the pressure plate-to-flywheel bolts loose?

Yes
TIGHTEN or INSTALL new bolts. REFER to Clutch Service and Repair.

No
GO to B3.

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B3 INSPECT THE PRESSURE PLATE

- Remove the clutch pressure plate.
- Inspect the clutch pressure plate for wear or damage.
- Are any signs of damage present on the clutch pressure plate?

Yes
INSTALL a new clutch pressure plate. REFER to Clutch Service and Repair. TEST the system for normal operation.

No
GO to B4.

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B4 CHECK THE CLUTCH DISC

NOTE: If the internal damper of the clutch disc is damaged or contaminated with grease or oil, it will sound similar to a "transaxle rattle".

- Check the clutch disc for wear or damage.
- Is the clutch disc OK?

Yes
GO to B5.

No
INSTALL a new clutch disc. REFER to Clutch Service and Repair. TEST the system for normal operation.

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B5 INSPECT THE FLYWHEEL

- Inspect the flywheel for wear or damage.
- Is the flywheel OK?

Yes
GO to B6.

No
REPAIR or INSTALL a new flywheel as necessary. TEST the system for normal operation.

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B6 INSPECT THE INPUT SHAFT

- Inspect the input shaft for signs of wear, damage or corrosion.
- Are any signs of wear damage, or corrosion present on the input shaft?

Yes
If wear or damage is found, INSTALL a new input shaft. REFER to Manual Transaxle/Transmission Input Shaft. If corrosion is found on the splines of the input shaft, apply a small amount of grease to the splines of the input shaft.

No
VERIFY the customer concern. GO to Symptom Chart - Clutch, GO to Symptom Chart - Transaxle, GO to Symptom Chart - NVH if necessary. Symptom Chart - Clutch Symptom Chart - Transaxle Symptom Chart - NVH

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