DEFINITION: The clutch grabs, or chatters, or the clutch is unable to release without the vehicle jerking. An abrupt engagement of the clutch.
Review the Symptoms - Clutch and perform the necessary inspections. |
| Grease or oil contamination on the clutch facings |
- Repair the cause of the oil leak or grease contamination.
- Clean the clutch facings.
- Replace the clutch components if they will not clean. Refer to Clutch Pressure and Driven Plate Replacement (1.4L LUJ) , Clutch Pressure and Driven Plate Replacement (1.8L LUW) .
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| Loose or faulty engine mounts |
- Inspect the engine mounts for being loose or faulty. Refer to Engine Mount Inspection
.
- Repair or replace the engine/transmission mounts as required. Refer to:
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| Clutch pedal sticking |
- Inspect the clutch pedal for correct operation.
- Replace the clutch pedal if it is faulty. Refer to Brake, Accelerator, and Clutch Pedal Replacement .
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| Clutch actuator binding |
- Inspect the clutch actuator for the piston seals binding or sticking on the hub.
- Replace the clutch actuator if it is binding. Refer to Clutch Actuator Cylinder Replacement .
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| Clutch master cylinder binding |
- Inspect the clutch master cylinder for the piston binding or sticking in the cylinder.
- Replace the master cylinder if it is faulty. Refer to Clutch Master Cylinder Replacement .
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| Warped clutch cover |
- Inspect the clutch cover for distortion caused by improperly tightening the clutch cover bolts.
- Replace the clutch cover if it is distorted. Refer to Clutch Pressure and Driven Plate Replacement (1.4L LUJ) , Clutch Pressure and Driven Plate Replacement (1.8L LUW) .
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| Improper clutch installation |
- Inspect the pressure plate for distortion caused by improperly tightening the pressure plate bolts.
- Inspect the clutch disc for a bent hub caused by forcing the installation of the transmission.
- Inspect for the correct clutch disc.
- Inspect the clutch disc for being installed backwards.
- Replace the clutch assembly if it is damaged or the wrong components were installed. Refer to Clutch Pressure and Driven Plate Replacement (1.4L LUJ) , Clutch Pressure and Driven Plate Replacement (1.8L LUW) .
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| Clutch disc binding on the input shaft |
- Inspect the input shaft for rust dirt or debris.
NOTE:
Do not use mineral or paraffin based oil to lubricate the splines.
- Clean and lubricate the input shaft.
- Inspect the clutch disc for a bent hub.
- Replace the clutch assembly if the clutch disc is faulty. Refer to Clutch Pressure and Driven Plate Replacement (1.4L LUJ) , Clutch Pressure and Driven Plate Replacement (1.8L LUW) .
- Inspect the input shaft for excessive wear on the splines, causing the clutch disc to bind.
- Replace the transmission if input shaft is worn. Refer to Transmission Replacement
.
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| Clutch pressure plate damaged |
- Inspect the pressure plate for bent drive straps caused by improper vehicle use.
- Replace the clutch assembly if the clutch pressure plate is damaged. Inform the customer. Refer to Clutch Pressure and Driven Plate Replacement (1.4L LUJ) , Clutch Pressure and Driven Plate Replacement (1.8L LUW) .
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| Flywheel improperly machined |
- Inspect the flywheel for being improperly machined, and causing interference with the clutch disc.
- Replace the flywheel if it has been improperly machined. Refer to:
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| Flywheel uneven |
- Inspect the flywheel surface for being warped or uneven.
- Replace the flywheel if it is faulty. Refer to:
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