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MOTRS

Falcon (EA-AU)

1988-2002 / Sedan / Estate / Australia

All Falcon (EA-AU) problems All workshop issues
Common Transmission

BTR 4-Speed Automatic Failure (all models, AU worst)

Symptoms

Harsh shifts, slipping, delayed engagement, shudder during 2-3 shift. The AU frequently enters limp mode (stuck in 3rd gear only).

Cause

The BTR 4-speed uses clutch packs and bands that wear with age and heat. The AU Series 1 auto is the weakest variant. Contaminated or burnt fluid accelerates wear. The transmission control module can develop electrical faults causing limp mode (fault code P0748).

Fix

Start with a fluid and filter service ($150-250).

If problems persist: shift kit ($200-400 fitted) improves shift quality and extends life.

A rebuild costs $1,500-3,000.

Alternatively, a manual conversion using a wrecking yard T5 transmission is popular ($1,000-2,000 all-in for a DIY conversion).

Cost mentioned in fix
$150-250$200-400$1,500-3,000$1,000-2,000

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Other known issues

Critical Engine

TFI Module Failure (EA-ED)

The engine cuts out while driving and won't restart. After cooling for 30-60 minutes, it may restart and run normally for a while before dying again. Sometimes fails permanently.
Common Engine

Hydraulic Lifter Tick (AU especially, all models)

A ticking or tapping noise from the top of the engine, often worst on cold start. May persist for minutes or be constant. The noise comes from the rocker cover area.
Common Engine

Coil Pack Failure (EF-EL)

Misfiring on specific cylinders, rough idle, loss of power. May be intermittent initially, then become constant.
Critical Engine

Crank Angle Sensor Failure (EA-ED)

Engine cranks but won't start, or starts and dies. No spark at all cylinders.
Common Engine

Idle Speed Control (ISC) Valve Issues

Erratic idle speed, high idle (1,500+ rpm), stalling when coming to a stop, or inability to maintain idle.
Common Engine

Rocker Cover Bolt Breakage

A rocker cover bolt snaps during routine maintenance, leaving the threaded portion stuck in the head.
View all 21 Falcon (EA-AU) problems