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Engine Controls - Tests W/o Codes - Gasoline: NVH Ford Aerostar I

ROUTINE 212 - ENGINE NOISE

SYSTEM & Component(s)GO TO
SQUEAL, CLICK OR CHIRP: Oil Levels (Low), Valve Train, Drive Belts (Loose), Belt Driven Components, EEC SolenoidsPerform a visual & audible inspection, Check engine mechanical conditions
RUMBLE, GRIND: Belt Driven ComponentsPerform a visual & audible inspection, Check engine mechanical conditions
RATTLE: Component (Loose)Perform a visual & audible inspection, Check engine mechanical conditions
HISS: Thermactor, Vacuum Distribution & Induction Systems Leak, Spark Plug (Loose), Cooling System (Leak), EVAP System (Leak)See BASIC TESTING , Perform a visual & audible inspection, Perform a visual inspection
RAP, ROAR: Exhaust System (Leak), Pulse Air System (Air Cleaner)Check Exhaust System, Perform a visual & audible inspection
KNOCK: Connecting Rod Bearing & Main Bearing (Worn), Piston Pin (Loose), Piston to Bore Clearance (Cold Engine), Mechanical Fuel Pump DetonationCheck Engine mechanical conditions, Go to ROUTINE 215

ROUTINE 212 - ENGINE NOISE