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SYMPTOM
Lack of Power
Spark Knock
Engine Concerns
SYMPTOM
Oil System Concerns
- High Oil Consumption
Cooling System Concerns
Exhaust System Concerns
(visible smoke)
- Black Smoke
- Blue Smoke
Fuel System Concerns
Engine Noise
•
Ancillary Components Binding
•
Intake Air Restriction
•
Crossed Spark Plug Wires
•
Spark Plugs Fouled
•
Fuel System Failure
•
Low Fuel Pressure
•
Low Cylinder Compression
•
Poor Quality or Contaminated Fuel
•
Carbon Build-up
•
Wrong Spark Plugs (Too High Heat Range)
•
Fuel Delivery System
•
PCV System
•
Fuel Selection Timing
•
Cylinder Hot Spots
•
Positive Crankcase Ventilation (PCV) System
•
Oil Viscosity
•
External Leaks
•
Improper Oil Dipstick
•
Valve Seals
•
Cylinder Wall Taper Excessive
•
Worn Piston Rings
•
Trapped Air
•
Worn Drive Belt
•
Worn Water Pump
•
Stuck Thermostat
•
Plugged Radiator (Internal & External)
•
Dry Fuel System Running Rich
•
Ignition System
•
Fuel Delivery System
•
Sticking Fuel Injector
•
High Fuel Pressure
•
PCV System
•
Worn Piston Rings
•
Worn Valve Guides
•
Leaky Lines
•
Contaminated Fuel
•
Excessive Alcohol in Fuel
•
Incorrect Octane Rating
•
Low Oil Pressure
•
Oil Filter Restriction
41
POSSIBLE CAUSE
POSSIBLE CAUSE
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