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Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Controls - Tests W/O Codes - 4.0L) >> Symptoms >> Rough Idle >> Preliminary Checks

Preliminary Checks

WARNING: This page is about a different variant/trim than selected.

Check for vacuum leaks. Check air intake duct. Check air filter. Check primary and secondary ignition wiring harness and components. Check for cracked or missing cooling fan blades.