300ZX (Z32)

1989-2000 / Coupe / Convertible / Japan

All 300ZX (Z32) problems All workshop issues

Common Transmission

Clutch Slave Cylinder Failure (Manual)

Symptoms

The clutch pedal goes soft or to the floor. Difficulty engaging gears. Clutch fluid on the gearbox bellhousing.

Cause

The clutch slave cylinder is mounted on the outside of the gearbox bellhousing and is exposed to heat from the engine and exhaust. The seals fail with age.

Fix

Replace the slave cylinder.

It is relatively accessible on the Z32.

Cost: $100--250 for the part, $200--400 for labour.

Cost mentioned in fix

Cost: $100$200

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// More 300ZX (Z32) problems

Other known issues

Common Transmission

Third Gear Synchro Wear (Manual)

Grinding or crunching when shifting into 3rd gear, particularly on quick downshifts from 4th. May be more pronounced when cold.

Minor Engine -- VG30DE/DETT (All Models)

Timing Belt Failure Risk

If the timing belt breaks, the valves collide with the pistons. The engine is destroyed. There is no warning -- the belt simply snaps and the engine stops instantly with catastrophic internal damage.

Common Engine -- VG30DE/DETT (All Models)

Spark Plug Access (Rear Bank)

The rear three spark plugs become fouled, worn, or fail, causing misfires, rough running, and reduced power.

Critical Engine -- VG30DE/DETT (All Models)

Oil Leaks

Oil seepage and dripping from multiple points -- valve cover gaskets, rear main seal, oil pan gasket, timing cover, turbo oil lines (TT), power steering lines, and various sensors.

Minor Engine -- VG30DE/DETT (All Models)

Overheating

Temperature gauge climbs, particularly in traffic or on hot days. Coolant loss. Steam from under the bonnet.

Common Twin-Turbo System (VG30DETT Only)

Vacuum Line Deterioration

Boost fluctuations, poor throttle response, check engine light, erratic idle, boost creep (boost exceeding target), or inability to make boost.

View all 15 300ZX (Z32) problems