Pinpoint Test B: Clutch Chatter, Rattle Or Shudder
- B1 CHECK THE ENGINE OR TRANSMISSION MOUNTS
- Inspect all the engine and transmission mounts for looseness or damage.
- Are any of the engine or transmission mounts loose or damaged?
Yes : TIGHTEN or INSTALL new engine mounts or transmission mounts. TEST the system for normal operation.
No : GO to B2.
- 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 . TEST the system for normal operation.
No : GO to B3.
- 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 . TEST the system for normal operation.
No : GO to B4.
- 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 "transmission 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 . TEST the system for normal operation.
- 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. REFER to CLUTCH . TEST the system for normal operation.
- B6 INSPECT THE INPUT SHAFT
- Inspect the input shaft for signs of wear or damage.
- Are any signs of wear or damage present on the input shaft?
Yes : INSTALL a new input shaft. REFER to MANUAL TRANSAXLE-TRANSMISSION .
No : VERIFY the customer concerns. GO to SYMPTOM CHART if necessary.