•  Check engine light illuminates incorrectly.

•  Starter does not work.

•  Starter cranks engine at normal speed but engine requires excessive cranking time before starting.

•  Battery is operating normally.

•  Engine stops unexpectedly at idle, after start, or both.

•  Starter cranks engine at normal speed but engine will not run.

•  Refer to symptom troubleshooting “NO.5 ENGINE STALLS-AFTER START/AT IDLE” if this symptom appears after engine stalls.

•  Fuel is in tank.

•  Battery is in normal condition.

•  Engine oil warning light illuminated.

•  Message related to engine hydraulic pressure malfunction indicated in display. (Type A or type B instrument cluster)

•  Engine speed fluctuates between specified idle speed and lower speed and, engine shakes excessively.

•  Idle speed is too slow and engine shakes excessively.

•  Engine speed continues at fast idle after warm-up.

•  Engine runs after ignition switch is turned off.

•  Engine stops unexpectedly at beginning of deceleration or recovery from deceleration.

•  Engine stops unexpectedly at beginning of acceleration or during acceleration.

•  Engine stops unexpectedly while cruising.

•  Engine speed fluctuates during acceleration or cruising.

•  Engine misses during acceleration or cruising.

•  Vehicle bucks/jerks during acceleration, cruising, or deceleration.

•  Momentary pause at beginning of acceleration or during acceleration.

•  Momentary minor irregularity in engine output.

•  Performance is poor under load. (e.g., power down when climbing hills)

•  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 room during acceleration.

•  Fuel economy is unsatisfactory.

•  Fails emissions test.

•  Oil consumption is excessive.

•  Engine runs at higher than normal temperature/overheats.

•  Engine does not reach normal operating temperature.

•  Blue, black, or white smoke from exhaust system.

•  Gasoline fuel smell or visible leakage.

•  Engine noise from under bonnet.

•  Vibration from under bonnet or driveline.

•  A/C compressor magnetic clutch does not engage when A/C switch is turned on.

•  A/C compressor magnetic clutch does not disengage.

•  Rotten egg smell (sulphur) from exhaust.

•  Incorrect spark plug condition.

•  ATX concerns not related to engine performance.