Clutch Trouble Shooting
NOTE:
This is GENERAL
information. This article is not intended to be specific to any unique situation or individual vehicle configuration. The purpose of this Trouble Shooting information is to provide a list of common causes to problem symptoms. For model-specific Trouble Shooting, refer to SUBJECT, DIAGNOSTIC, or TESTING articles available in the section(s) you are accessing.
BASIC CLUTCH TROUBLE SHOOTING CHART
| CONDITION & POSSIBLE CAUSE | CORRECTION | |
|---|---|---|
| Chattering or Grabbing | ||
| Incorrect clutch adjustment | Adjust clutch | |
| Oil, grease or glaze on facings | Disassemble and clean or replace | |
| Loose "U" joint flange | See DRIVE AXLES article | |
| Worn input shaft spline | Replace input shaft | |
| Binding pressure plate | Replace pressure plate | |
| Binding release lever | See CLUTCH article | |
| Binding clutch disc hub | Replace clutch disc | |
| Unequal pressure plate contact | Replace worn/misaligned components | |
| Loose/bent clutch disc | Replace clutch disc | |
| Incorrect transmission alignment | Realign transmission | |
| Worn pressure plate, disc or flywheel | Replace damaged components | |
| Broken or weak pressure springs | Replace pressure plate | |
| Sticking clutch pedal | Lubricate clutch pedal & linkage | |
| Incorrect clutch disc facing | Replace clutch disc | |
| Engine loose in chassis | Tighten all mounting bolts | |
| Failure to Release | ||
| Oil or grease on clutch facings | Clean or replace clutch clutch disc | |
| Incorrect release lever or pedal adjustment | See CLUTCH article | |
| Worn or broken clutch facings | Replace clutch disc | |
| Bent clutch disc or pressure plate | Replace damaged components | |
| Clutch disc hub binding on input shaft | Clean or replace clutch disc and/or input shaft | |
| Binding pilot bearing | Replace pilot bearing | |
| Sticking release bearing sleeve | Replace release bearing and/or sleeve | |
| Binding clutch cable | See CLUTCH article | |
| Defective clutch master | Replace master cylinder | |
| Defective clutch slave | Replace slave cylinder | |
| Air in hydraulic system | Bleed hydraulic system | |
| Rattling | ||
| Weak or broken release lever spring | Replace spring and check alignment | |
| Damaged pressure plate | Replace pressure plate | |
| Broken clutch return spring | Replace return spring | |
| Worn splines on clutch disc or input shaft | Replace clutch disc and/or input shaft | |
| Worn clutch release bearing | Replace release bearing | |
| Dry or worn pilot bearing | Lubricate or replace pilot bearing | |
| Unequal release lever contact | Align or replace release lever | |
| Incorrect pedal free play | Adjust free play | |
| Warped or damaged clutch disc | Replace damaged components | |
| Slipping | ||
| Pressure springs worn or | Release pressure plate | |
| Oily, greasy or worn facings | Clean or replace clutch disc | |
| Incorrect clutch alignment | Realign clutch assembly | |
| Warped clutch disc or pressure plate | Replace damaged components | |
| Binding release levers or clutch pedal | Lubricate and/or replace release components | |
| Squeaking | ||
| Worn or damaged release | Replace release bearing | |
| Dry or worn pilot or release bearing | Lubricate or replace assembly | |
| Pilot bearing turning in crankshaft | Replace pilot bearing and/or crankshaft | |
| Worn input shaft bearing | Replace bearing and seal | |
| Incorrect transmission alignment | Realign transmission | |
| Dry release fork between pivot | Lubricate release fork and pivot | |
| Heavy and/or Stiff Pedal | ||
| Sticking release bearing sleeve | Replace release bearing and/or sleeve | |
| Dry or binding clutch pedal hub | Lubricate and align components | |
| Floor mat interference with pedal | Lay mat flat in proper area | |
| Dry or binding ball/fork pivots | Lubricate and align components | |
| Faulty clutch cable | Replace clutch cable | |
| Noisy Clutch Pedal | ||
| Faulty interlock switch | Replace interlock switch | |
| Self-adjuster ratchet noise | Lubricate or replace self-adjuster | |
| Speed control interlock switch | Lubricate or replace interlock switch | |
| Clutch Pedal Sticks Down | ||
| Binding clutch cable | See CLUTCH article | |
| Springs weak in pressure plate | Replace pressure plate | |
| Binding in clutch linkage | Lubricate and free linkage | |
| Noisy | ||
| Dry release bearing | Lubricate or replace release bearing | |
| Dry or worn pilot bearing | Lubricate or replace bearing | |
| Worn input shaft bearing | Replace bearing | |
| Transmission Click | ||
| Weak springs in pressure | Replace pressure plate plate | |
| Release fork loose on ball stud | Replace release fork and/or ball stud | |
| Oil on clutch disc damper | Replace clutch disc | |
| Broken spring in slave cylinder | Replace slave cylinder | |