1. Faulty Fuel Injectors: Faulty fuel injectors can cause the engine to run rich, resulting in unburned fuel exiting the exhaust system as white smoke.
2. Bad Oxygen Sensor: A faulty oxygen sensor can provide incorrect readings to the engine's computer, which can lead to an improper air/fuel mixture and result in white smoke.
3. Worn Piston Rings: Worn piston rings can allow oil to leak into the combustion chambers, causing the oil to burn and produce white smoke.
4. Blown Head Gasket: A blown head gasket can allow coolant to enter the combustion chambers, resulting in white smoke and a sweet odor.
5. Coolant Leak: A coolant leak into the exhaust system can produce white smoke and a sweet odor.
6. Faulty PCV Valve: A faulty PCV valve can lead to excessive crankcase pressure, which can force oil and fuel vapors into the exhaust system and result in white smoke.
Recommendation: It is important to have the vehicle diagnosed by a qualified mechanic to identify the specific cause of the white smoke and gasoline odor.
