Pinpoint Test F: Clutch Related Vibrations
WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
- F1 CHECK FOR ENGINE COMPONENT GROUNDING
- Raise the vehicle on a hoist. Refer to JACKING & LIFTING .
- Check the engine and transmission mounts for grounding.
- Check for exhaust manifolds or other engine component(s) grounding on the body or frame.
- Is there evidence of grounding on the body or frame?
- Yes : REPAIR the components as necessary. TEST the system for normal operation.
- No : GO to F2.
- F2 CHECK FOR ACCESSORY DRIVE VIBRATIONS
- Key in START position.
- Remove the accessory drive belt.
- Does the vibration stop when the accessory drive belt is removed from the engine?
- Yes : REFER to SPECIFICATIONS & DRIVE BELT ROUTING to diagnose the accessory drive belt components.
- No : STOP the engine and REINSTALL the drive belt. GO to F3.
- F3 CHECK FOR RELEASE BEARING NOISE
- Key in START position.
- Depress and hold the clutch pedal.
- Is a whirring, grating, or grinding noise present only when pedal is pushed?
- Yes : INSTALL a new clutch slave cylinder. REFER to CLUTCH .
- No : GO to F4.
- F4 INSPECT THE PILOT BEARING
- Remove the transmission. Refer to MANUAL TRANSAXLE/TRANSMISSION .
- Remove the clutch pressure plate and clutch disc. Refer to CLUTCH .
- Inspect the pilot bearing for wear or damage.
- Is the pilot bearing worn or damaged?
- Yes : INSTALL new pilot bearing. REFER to CLUTCH .
- No : GO to F5.
- F5 INSPECT THE FLYWHEEL
- Key in OFF position.
- Inspect the flywheel. Refer to FLYWHEEL CHECK .
- Is the flywheel OK?
- Yes : GO to F6.
- No : INSTALL a new flywheel. REFER to CLUTCH . TEST the system for normal operation.
- F6 CHECK FOR PRESSURE PLATE IMBALANCE CAUTION: Failure to support the engine correctly could result in damage to the vehicle.
- Support the engine securely.
- Operate the engine with the transmission removed.
- Is the vibration still present?
- Yes : REFER to ENGINE SYSTEM-GENERAL INFORMATION to diagnose the engine vibration concern.
- No : INSTALL a new clutch pressure plate. TEST the system for normal operation.