Commodore (VB-VL)

1978-1988 / Sedan / Estate / Australia

All Commodore (VB-VL) problems All workshop issues

Critical Electrical

VL Ignition Control Module (ICM) Failure

Symptoms

Engine cuts out while driving. Won't restart. May restart after cooling down. Similar symptoms to the Ford TFI module failure.

Cause

The VL's Hitachi ignition control module is mounted on the distributor (NA models) or coil assembly (turbo) and is subject to heat stress. Thermal cycling causes internal solder joint failure.

Fix

Replace the ICM.

Parts are $80-200.

For the turbo model, the ICM is more accessible.

Carry a spare.

Cost mentioned in fix

$80-200

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Other known issues

Common Electrical

Corroded Earth Points (VL)

Intermittent electrical faults, instruments drop out, lights dim, ECU throws random codes, fuel injection behaves erratically.

Minor Electrical

Dashboard Gauge Failures

Gauges read incorrectly, needles stick, illumination fails.

Minor Engine, Holden Six (3.3L / 202ci)

Worn Valve Stem Seals

Blue smoke on startup that clears after 30 seconds to a minute. May also smoke briefly on deceleration after sustained highway driving.

Common Engine, Holden Six (3.3L / 202ci)

Carburettor Issues (VB-VH)

Hard starting, rough idle, flat spots on acceleration, flooding, poor fuel economy, black smoke.

Critical Engine, Holden Six (3.3L / 202ci)

Oil Leaks (All Holden Six and V8)

Oil on the garage floor, oil smell, oil coating on the underside of the engine.

Critical Engine, Holden V8 (253/308)

Overheating in Traffic

Temperature gauge climbs into the red zone in slow traffic or on hot days. May push coolant out the overflow.

View all 21 Commodore (VB-VL) problems