SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-G (US)]
SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-G (US)]
SM2565580
id0103s48005s6
Diagnostic Index
• Verify malfunction symptoms using the following diagnostic index, then go to the appropriate troubleshooting chart.
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TROUBLESHOOTING ITEM |
DESCRIPTION |
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Blown fuses
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• Fuse is damaged.
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Check engine light illuminates
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• Check engine light illuminates incorrectly.
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Will not crank
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• Starter does not work.
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Hard to start/long crank/erratic start/erratic crank
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• Starter cranks engine at normal speed but engine requires excessive cranking time before starting.
• Battery is operating normally.
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Engine stalls-after start/at idle
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• Stalling occurs if vehicle is left idling under no load.
• Stalling occurs when load (electric, A/C) is applied during idling.
• Stalling occurs if the accelerator pedal is depressed from an idling condition when accelerating from a stop.
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Cranks normally but will not start
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• Cranking occurs but no ignition.
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Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display
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• Engine oil warning light illuminated.
• Message related to engine hydraulic pressure malfunction indicated in display.
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Engine runs rough/rolling idle
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• Idle speed lower than the specification.
• Idling speed unstable, increases/decreases.
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Fast idle/runs on
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• Engine speed continues at fast idle after warm-up.
• Engine runs after ignition is switched off.
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Low idle/stalls during deceleration
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• Engine speed decreases when the accelerator pedal is released.
• Stalls during deceleration with the accelerator pedal fully released.
• When the accelerator pedal is fully released, vehicle stalls directly after vehicle stops.
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Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges
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• Stalling occurs while driving with the throttle open.
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Lack/loss of power-acceleration/cruise
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• Engine speed increase delays when the accelerator pedal is fully depressed.
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Knocking/pinging-acceleration/cruise
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• Abnormal combustion occurs under the condition such as the temperature in the combustion chamber is too high resulting in abnormal noise.
• Knocking sound occurs from the engine compartment during acceleration.
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Poor fuel economy
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• The fuel consumption is high compared to the customer’s expectations or the previous fuel consumption.
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Emission compliance
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• Fails emissions test.
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High oil consumption/leakage
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• Oil consumption is excessive.
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Cooling system concerns-overheating
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• The engine coolant temperature is abnormally high.
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Cooling system concerns-runs cold
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• Engine does not reach normal operating temperature.
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Exhaust smoke
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• Blue, black, or white smoke from exhaust system.
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Fuel odor (in engine compartment)
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• Gasoline fuel smell or visible leakage.
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Engine noise
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• Engine noise from under hood.
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Vibration concerns (engine)
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• Vibration from under hood or driveline.
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A/C does not work sufficiently
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• A/C compressor magnetic clutch does not engage when A/C switch is turned on.
• Compressor valve inoperative
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A/C is always on or A/C compressor runs continuously
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• A/C compressor magnetic clutch does not disengage.
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Sulfuric smell occurs
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• Rotten egg smell (sulphur) from exhaust.
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Fuel refill concerns
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• Fuel tank does not fill smoothly.
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Fuel filling shut off concerns
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• Fuel does not shut off properly.
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Spark plug condition
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• Incorrect spark plug condition.
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No cylinder deactivation
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• Cylinder deactivation control does not operate.
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ATX concerns
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Upshift/downshift/engagement
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• ATX concerns not related to engine performance. (See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL].) (See SYMPTOM TROUBLESHOOTING ITEM TABLE [EV6A-EL, EV6AX-EL].)
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