Pinpoint Test B: Clutch Related Vibrations
WARNING: This page is about a different car, the 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- B1 CHECK FOR ENGINE COMPONENT GROUNDING
- With the vehicle in NEUTRAL, position it on a hoist. Refer to JACKING & LIFTING .
- Check the engine mount interlocks for grounding.
- Check for the exhaust manifold or other engine components grounding on the body or frame.
- Is there evidence of grounding on the body or frame?
- Yes: REPAIR any components as necessary.
- No: GO to B2 .
- B2 CHECK FOR ACCESSORY DRIVE VIBRATIONS
- Ignition OFF.
- Remove the accessory drive belt and check for vibration.
- Start the engine.
- Does the vibration stop when the accessory drive belts are removed from the engine?
- Yes: REFER to DIAGNOSIS AND TESTING to diagnose the accessory drive belt components.
- No: INSTALL the accessory drive belt. GO to B3 .
- B3 CHECK FOR RELEASE BEARING NOISE
- Start the engine.
- Press and hold the clutch pedal but do not disengage the clutch.
- Is a whirring, grating or grinding noise present only when the pedal is pushed?
- Yes: INSTALL a new clutch release bearing. REFER to REMOVAL AND INSTALLATION .
- No: GO to B4 .
- B4 INSPECT THE FLYWHEEL
- Remove the clutch disc and pressure plate. Refer to REMOVAL AND INSTALLATION .
- Inspect for loose flywheel bolts.
- Check for an excessively burnt or severely cracked contact surface.
- Inspect the flywheel runout. Refer to FLYWHEEL RUNOUT CHECK .
- Is the flywheel OK?
- B5 CHECK FOR PRESSURE PLATE IMBALANCE
- Support the engine securely.
- Operate the engine with the transaxle removed.
- Is the vibration still present?
NOTE: Failure to support the engine correctly could result in damage to the vehicle.- Yes: REFER to DIAGNOSIS AND TESTING to diagnose the engine vibration concern.
- No: INSTALL a new clutch pressure plate. REFER to REMOVAL AND INSTALLATION .