Supra (A80)

1993-2002 / Coupe / Japan

All Supra (A80) problems All workshop issues

Common Cooling System

Heater Core Leak

Symptoms

Sweet coolant smell inside the cabin. Fogging on the windscreen (coolant mist from the heater core mixing with cabin air). Coolant loss with no visible external leak. Wet carpets on the passenger side.

Cause

The heater core is a small radiator inside the dashboard that provides cabin heating. After decades, the thin tubes corrode and develop pinhole leaks. Contaminated or never-changed coolant accelerates corrosion.

Fix

Replace the heater core.

On the A80, this requires significant dashboard disassembly, budget 6-10 hours of labour.

The heater core itself is $100-200, but the labour makes this a $500-1,500 repair at a workshop.

Some owners bypass the heater core (loop the hoses) as a temporary fix, but this means no cabin heating.

Cost mentioned in fix

$100-200,$500-1,500

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// More Supra (A80) problems

Other known issues

Critical Cooling System

Radiator Degradation

Engine temperature creeps up in traffic or on hot days. Coolant loss. Green or pink coolant stains on the front of the engine or on the ground beneath the car.

Common Engine, 2JZ-GTE (Twin Turbo)

Sequential Twin-Turbo System Failures

A flat spot or hesitation in the 3,500-4,500 RPM range during full-throttle acceleration. Boost may spike or surge unpredictably. The car feels fast below 3,500 RPM and above 5,000 RPM but stumbles in the transition zone.

Common Engine, 2JZ-GTE (Twin Turbo)

Turbo Seal Wear (High Mileage)

Blue smoke on cold startup (oil pooled in the turbo housing overnight drains into the exhaust when started). Blue smoke on deceleration (intake manifold vacuum pulls oil past the compressor seals). Oil residue in the intercooler piping. Increased oil consumption without external leaks.

Minor Engine, 2JZ-GTE (Twin Turbo)

Timing Belt Failure

Catastrophic engine damage. The 2JZ is an interference engine, if the timing belt breaks, the pistons strike the open valves, bending them and potentially damaging the pistons, head, and block. The engine stops instantly and will not restart.

Critical Engine, 2JZ-GTE (Twin Turbo)

Cam Cover Gasket Oil Leaks

Oil seeps from the edges of the cam covers (rocker covers), running down the sides of the engine. Oil smell from the engine bay. Oil drips onto the exhaust manifold (fire risk on the turbo side).

Common Engine, 2JZ-GTE (Twin Turbo)

Oil Cooler O-Ring Leak

Oil leak from the oil cooler housing on the front of the engine, typically dripping down onto the oil filter and undercarriage.

View all 17 Supra (A80) problems