Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1966BISCAYNE 7.0L ENG, AUTOMATIC TRANS, TRANS MFR CD THM400REPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONDRIVELINE/AXLESTROUBLE SHOOTING - CLUTCHES - GENERAL INFORMATIONALL MODELS
1966 Chevrolet Biscayne 7.0L Eng, Automatic Trans, Trans Mfr CD THM400
All Models
1966 Chevrolet Biscayne 7.0L Eng, Automatic Trans, Trans Mfr CD THM400SECTION All Models
NOTE:
This is GENERAL information. This article is not intended to be specific to any unique situation or individual vehicle configuration. For model-specific information see appropriate articles where available.
CLUTCH TROUBLE SHOOTING
| Problem & Possible Cause | Action | |
|---|---|---|
| Clutch Chatters/Grabs | ||
| Incorrect Pedal Adjustment | Adjust Free Play | |
| Worn Input Shaft Spline | Replace Input Shaft | |
| Binding Pressure Plate | Replace Pressure Plate | |
| Binding Throw-Out Lever | Check Throw-Out Lever, Check Throw-Out Bearing, Check Bearing Retainer | |
| Uneven Pressure Plate Contact With Flywheel | Align/Replace Worn Parts | |
| Transmission Misaligned | Align Transmission | |
| Worn Pressure Plate | Replace Clutch Assembly | |
| Oil-Saturated Disc | Replace Clutch Assembly, Repair Oil Leak | |
| Loose Engine Mounts | Replace Engine Mounts | |
| Clutch Pedal Sticks Down | ||
| Clutch Cable Binding | Replace Clutch Cable | |
| Weak Pressure Plate Springs | Replace Clutch Assembly | |
| Binding Clutch Linkage | Lubricate Linkage | |
| Broken Clutch Pedal Return Spring | Replace Return Spring | |
| Clutch Will Not Release | ||
| Oil-Saturated Disc | Replace Clutch Assembly, Repair Oil Leak | |
| Defective Disc Face | Replace Clutch Assembly | |
| Disc Sticking on Input Shaft Splines | Replace Disc/Input Shaft | |
| Binding Pilot Bearing | Replace Pilot Bearing | |
| Faulty Clutch Master Cylinder | Replace Master Cylinder | |
| Faulty Clutch Slave Cylinder | Replace Slave Cylinder | |
| Blown Clutch Hose | Replace Hose | |
| Sticky Throw-Out Bearing Sleeve | Clean/Lube Sleeve | |
| Clutch Cable Binding | Replace Clutch Cable | |
| Broken/Loose Bellhousing | Check Bellhousing | |
| Rattling/Squeaking | ||
| Broken Throw-Out Lever Return Spring | Replace Return Spring | |
| Faulty Throw-Out Bearing | Replace Throw-Out Bearing | |
| Faulty Clutch Disc | Replace Clutch Disc | |
| Faulty Pilot Bearing | Replace Pilot Bearing | |
| Worn Throw-Out Bearing | Replace Throw-Out Bearing | |
| Dry Bearing Retainer Slide For Throw-Out Bearing Sleeve | Lubricate Slide | |
| Slipping | ||
| Faulty Pressure Plate | Replace Clutch Assembly | |
| Worn Clutch Disc | Replace Clutch Assembly | |
| Incorrect Alignment | Realign Clutch Assembly | |
| Faulty Clutch Slave Cylinder | Replace Slave Cylinder | |
| No Pedal Pressure | ||
| Leaky Hydraulic System | Check Clutch Master Cylinder, Check Clutch Slave Cylinder | |
| Check Clutch Hose | ||
| Broken Clutch Cable | Replace Clutch Cable | |
| Faulty Throw-Out Lever | Replace Throw-Out Lever | |
| Broken Clutch Linkage | Repair Clutch Linkage | |
| Noisy Clutch Pedal | ||
| Faulty Safety Switch | Check/Replace Switch | |
| Noisy Self-Adj. Ratchet | Replace Ratchet | |
| Dry Throw-Out Bearing | Replace Throw-Out Bearing | |
| Dry Pilot Bearing | Replace Pilot Bearing | |
| Worn Input Shaft | Replace Input Shaft | |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.