964

1989-1994 / Coupe / Targa / Cabriolet / Germany

Common Drivetrain

7. Dual-Mass Flywheel Failure

Symptoms

Rattling or chattering noise from the bellhousing area at idle, which disappears when the clutch pedal is depressed. Shudder on clutch engagement, particularly from a standstill. Vibration through the drivetrain at certain RPM ranges.

Cause

The dual-mass flywheel is a wear item. Hard launches, aggressive clutch engagement, and high mileage accelerate wear. Age also degrades the internal damper components regardless of use.

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// More 964 problems

Other known issues

Common Drivetrain

8. Carrera 4 AWD System Issues

AWD warning light on the dashboard. Unusual handling characteristics (either excessive understeer or oversteer). Grinding or whining from the front differential area. Fluid leaks from the transfer case. ---

Common Engine

1. Oil Leaks (Chain Tensioner Housings)

Oil residue on the engine's lower surfaces, oil drips on exhaust components (burning oil smell), oil spots beneath the car.

Common Engine

2. Oil Leaks (Cam Cover Gaskets)

Oil on the cylinder heads and barrel surfaces, burning oil smell from exhaust contact.

Critical Engine

3. Oil Leaks (Cylinder Base Gaskets)

Oil around the cylinder bases, dripping down the engine. In severe cases, oil loss between services.

Minor Engine

4. Timing Chain Tensioner Failure

A rattling noise from the front of the engine on cold start-up (chain slap). Erratic idle. In advanced cases, a metallic rattling that worsens with engine speed.

Minor Engine

5. Engine Bay Fires

Burning oil smell from the rear of the car (this is the warning sign). Smoke from the engine bay.

All 964 problems