AE86 Corolla

1983-1987 / Coupe / Hatchback / Japan

All AE86 Corolla problems All workshop issues

Common Rust

Rear Wheel Arch Corrosion

Symptoms

Rust in the inner and outer rear wheel arches, often extending into the boot floor and rear quarter panel.

Cause

Road spray is flung directly into the rear arches by the tyres. Mud, debris, and moisture accumulate between the inner and outer arch skins. Cars that have been driven hard (especially on dirt) suffer worst.

Fix

Inner arch repair: clean, treat, and seal for surface rust.

Replace if perforated.

Outer arch repair: usually requires a partial quarter-panel replacement.

Cost: $500-2,000 per side.

Cost mentioned in fix

Cost: $500-2,000 per side

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Other known issues

Minor Rust

Floor Pan Corrosion

The floor rusts from underneath, progressing from surface rust to perforation. In severe cases, you can see the road through the floor. The structural rigidity of the unibody is compromised.

Minor Rust

Sill (Rocker Panel) Corrosion

The sills rust from the inside out. Paint bubbles appear on the exterior, and the metal underneath is soft or perforated.

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.

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

Timing Belt Failure

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.

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.

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