AE86 Corolla

1983-1987 / Coupe / Hatchback / Japan

All AE86 Corolla problems All workshop issues

Minor Engine, 4A-GE 1.6L DOHC Inline-4

Timing Belt Failure

Symptoms

The engine stops instantly. On the 4A-GE (interference engine), the pistons hit the valves, bending the valves and potentially cracking pistons and damaging the head.

Cause

The rubber timing belt degrades with age and mileage. Heat, oil contamination (from leaking cam seals), and age all weaken the belt. The tensioner spring can also weaken, allowing the belt to slip.

Fix

Replace the timing belt, tensioner, and idler pulleys every 60,000-80,000 km or every 5 years.

Replace the cam seals and crank seal at the same time, oil contamination is the leading cause of premature belt failure.

Cost: $300-500 for belt, tensioner, seals, and pulleys.

It's a 2-3 hour job for an experienced home mechanic.

Cost mentioned in fix

Cost: $300-500 for belt

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Other known issues

Common Engine, 4A-GE 1.6L DOHC Inline-4

Oil Consumption

Blue smoke on overrun (deceleration after high RPM) or under hard acceleration. Oil level drops between services. Fouled spark plugs, particularly on cylinders 1 and 4.

Common Engine, 4A-GE 1.6L DOHC Inline-4

T-VIS Failure

Loss of top-end power. The engine feels flat above 4,500 rpm and doesn't pull strongly to the redline. No audible "click" from the T-VIS actuator around 4,200 rpm.

Minor Engine, 4A-GE 1.6L DOHC Inline-4

Distributor O-Ring Oil Leak

Oil leaking from the base of the distributor, running down the side of the engine. Oil contamination on the distributor cap and leads.

Common Gearbox, T50 5-Speed Manual

Synchro Wear (2nd and 3rd Gear)

Crunching or grinding when shifting into second or third gear, particularly on fast downshifts. The synchro ring can no longer match shaft speeds, and the gear teeth clash.

Common Gearbox, T50 5-Speed Manual

Gearbox Mount Failure

Excessive vibration through the gearstick, clunking during gear changes, and the gearstick feeling loose or imprecise.

Common Differential

Diff Noise and Whine

Whining noise from the rear axle that changes pitch with speed. Clunking on acceleration or deceleration.

View all 14 AE86 Corolla problems