Falcon (EA-AU)

1988-2002 / Sedan / Estate / Australia

All Falcon (EA-AU) problems All workshop issues

Common Engine

Idle Speed Control (ISC) Valve Issues

Symptoms

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

Cause

The ISC valve (also called the idle air control valve) clogs with carbon deposits from PCV system blowby. The valve is an electric stepper motor that controls idle air bypass.

Fix

1 Remove and clean the ISC valve with carburettor cleaner. Reset the base idle by: (1) Remove ISC plug, (2) Insert 0.75 mm feeler gauge between the throttle stop tab and throttle lever, (3) Put the engine in diagnostic mode, (4) Wait 2 minutes and adjust the throttle blade screw until idle reads 700 rpm (+/
2 50). Cost: free if cleaning works; $80-150 for a new ISC valve

Cost mentioned in fix

$80-150 for a

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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

Rocker Cover Bolt Breakage

A rocker cover bolt snaps during routine maintenance, leaving the threaded portion stuck in the head.

Critical Fuel System

Fuel Pump Failure

Engine cranks but won't start. No fuel pressure at the rail. The fuel pump may be silent (normally an audible whine for 2 seconds when the ignition is turned to ON).

View all 21 Falcon (EA-AU) problems