Celica (A20/A40)

1970-1981 / Coupe / Liftback / Japan

All Celica (A20/A40) problems All workshop issues

Common Engine -- 18R Single-Cam

Carburettor Wear

Symptoms

Rough idle, hesitation, poor fuel economy. The single-cam 18R uses a two-barrel Aisan carburettor that is generally reliable but does wear.

Cause

Throttle shaft bushings wear (causing air leaks), float valves stick, jets accumulate varnish, and gaskets perish. Modern ethanol-blended fuels accelerate deterioration of rubber components.

Fix

Rebuild with a carburettor kit ($40--80).

If the throttle shaft bushings are worn, the carburettor body needs rebushing.

Cost: $50--200 for a full rebuild.

Cost mentioned in fix

$40Cost: $50

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// More Celica (A20/A40) problems

Other known issues

Critical Engine -- 18R Single-Cam

Oil Leaks

Oil seepage and dripping from the valve cover gasket, oil pan gasket, rear main seal, and timing cover.

Critical Engine -- 18R Single-Cam

Timing Chain Noise

A rattle or slapping sound from the front of the engine on cold start that may quiet as the engine warms.

Minor Engine -- 18R Single-Cam

Overheating

Temperature gauge climbs in traffic or on hot days. Coolant loss.

Critical Body and Structure

Floor Pan Corrosion

Soft or thinning floors, particularly in the driver's and passenger's footwells. Wet carpet after rain. Road noise increases.

Critical Body and Structure

Lower Quarter Panel Corrosion

Rust and perforation in the lower rear quarter panels, behind and above the rear wheels.

Minor Body and Structure

Inner Guard Corrosion

Rust in the engine bay around the inner fenders and strut tower bases.

View all 18 Celica (A20/A40) problems