What Causes White Smoke from Car Exhaust in Summer?

1 Answers
AlexanderLee
07/30/25 1:05am
White smoke from car exhaust in summer is caused by the high temperature of the exhaust gases coming out of the tailpipe, which condenses water vapor into small water droplets. Normal conditions: The water vapor produced after gasoline combustion is normally discharged through the exhaust pipe. Due to the relatively low ambient temperature, the water vapor condenses and gathers into small water droplets, turning into visible water vapor. When the engine is running and the exhaust pipe emits a large amount of white water vapor, check whether there is water accumulation in the fuel tank, whether the cylinder gasket is damaged, whether the cylinder block has cracks, and whether the cylinder liner sealing ring is in good condition. Fault conditions: When some coolant enters the cylinder and is discharged with the exhaust gases, it appears as water vapor due to the high temperature.
Was this review help?
7
4
Share
More Forum Discussions

Is it serious if water reaches under the car seats?

It is relatively serious if a car is submerged to the level below the seats. Here are the relevant details: 1. Severity: The seriousness of a water-damaged car depends on the height of the water submersion and whether the vehicle was started while submerged. 2. Below the seats: If the water only reaches below the seats, this height does not reach the vehicle's air intake or the fuse box and dashboard area. After thorough cleaning, the impact on the vehicle is relatively minor. 3. Cleaning: During the cleaning process, it is necessary to replace the transmission fluid, engine oil, and brake fluid, as well as clean and maintain the vehicle's braking system, exhaust pipe, and catalytic converter. This can further reduce the impact of water damage on the vehicle's subsequent use.
11
2
Share

What Causes High Temperature in Diesel Engine?

The reasons for high temperature in diesel engines are as follows: 1. Water pump damage: When the water pump is damaged, the coolant cannot circulate in the cooling system, and thus cannot carry away the heat generated by engine combustion; 2. Lack of coolant or use of unqualified coolant: When the coolant is insufficient or completely missing, there is no cooling medium in the cooling system to transfer the engine heat, leading to high temperature. Additionally, modern engines operate at temperatures higher than the boiling point of water. Using water or unqualified coolant as the cooling medium can also cause engine overheating; 3. Thermostat damage: When the thermostat is damaged or stuck, the engine only operates in a small cycle, and the radiator cannot dissipate heat effectively, resulting in low heat dissipation intensity and engine overheating; 4. Fan not working: The fan may not work due to two reasons: one is the fan itself being damaged, such as broken fan blades, stuck fan, or broken fan belt; the other may be a control circuit fault that fails to send operation signals to the electric fan; 5. Dirty radiator surface, poor heat dissipation: When the radiator surface is covered with dirt, heat conduction is poor, and heat cannot be dissipated into the air in time, causing engine overheating.
11
5
Share

Is the speed limit for vehicles in factory areas 10 or 15?

Speed limit regulations for vehicles within the factory premises: When driving on the main roads within the factory without speed limit signs, vehicles must not exceed 30 km/h, and on other roads, they must not exceed 20 km/h. Speed limit regulations for vehicles within the factory premises: When driving on the main roads within the factory without speed limit signs, vehicles must not exceed 30 km/h, and on other roads, they must not exceed 20 km/h. In case of unexpected situations, the time required for the driver to react and brake after seeing the situation is called the reaction time. The distance the vehicle travels at its original speed during the reaction time is called the reaction distance. The distance the vehicle travels from braking to a complete stop is called the braking distance. Therefore, speed limits are imposed to ensure safety. The speed limit requirements for vehicles driving in the following locations, sections, or under special circumstances should comply with: 1. At crossings, intersections, loading and unloading operations, densely populated pedestrian areas, downhill slopes, places with warning signs, or when turning or making U-turns: The maximum speed for trucks carrying flammable, explosive, or other hazardous goods must not exceed 15 km/h. 2. On icy, snowy, or waterlogged roads; or when visibility is less than 30 meters due to severe weather: The maximum speed must not exceed 10 km/h. 3. When entering or exiting factory buildings, warehouses, workshop gates, parking lots, gas stations, weighing scales, hazardous areas, production sites, reversing, or towing damaged vehicles: The maximum speed must not exceed 5 km/h.
14
0
Share

What model is the Buick 552T?

Buick 552T is an entry-level model. Here are some introductions about the Buick 552T: 1. Performance: The LaCrosse inherits Buick's consistently excellent vehicle quietness performance. Although the 552T model is only an entry-level model, it still features ANC active noise cancellation, front-row soundproof glass, combined with excellent body rigidity, soundproof materials, seal strip filling, and a low drag coefficient, effectively suppressing noise resonance in the body. Throughout the driving process, there is almost no interference from abnormal noises or wind noise. 2. Power: Equipped with a 1.5T engine, this 1.5T-SIDI direct injection engine is still made of all-aluminum and adopts mid-mounted direct injection technology.
19
4
Share

What causes the engine vibration warning light to illuminate in a Mercedes-Benz C260L?

There are several reasons why the engine warning light may illuminate accompanied by body vibration: 1. Cold Start: Incomplete fuel combustion can lead to insufficient power output, resulting in body vibration during cold starts. Low ignition energy requires more throttle input to meet power demands during startup, especially when fuel and lubricant temperatures are low. 2. Shock Absorber System: Body vibration may be related to aging shock absorbers. These components primarily filter engine vibrations during operation. If the shock absorbers malfunction, these vibrations will directly transmit to the steering wheel and cabin, affecting driving comfort. 3. Tires: New tire or wheel installations require tire balancing. Uneven weight distribution can cause steering wheel vibration. When tire weight imbalance is detected, lead weights should be added to the inner side of the wheel to balance the weight distribution between both tires. 4. Throttle Body: The most common cause of car vibration is dirty throttle bodies and excessive carbon buildup in fuel injectors. After certain mileage, excessive dirt may prevent proper throttle closure or cause motor jamming, resulting in elevated engine idle speed. 5. Unstable Oil Pressure: Abnormal fuel pump pressure, incorrect readings from the intake pressure sensor, or improper operation can all lead to body vibration.
7
1
Share

Can Cheyida Youyoule New Fuel Replace Gasoline?

Youyoule cannot completely replace gasoline. Introduction to Youyoule: Youyoule is a fuel cleaner. Generally, fuel cleaners can effectively remove carbon deposits, sludge, etc., from the fuel injectors, intake valves, cylinder walls, piston tops, and intake pipes. Functions: Using Youyoule can make the throttle lighter, acceleration faster, and power stronger. During use, it has four key features: non-toxic, smokeless, carbon-free, and harmless. It does not produce carbon deposits, does not harm the engine, protects the engine, and extends its service life. Youyoule new energy vehicle cleaner can save 10% to 30% of fuel and reduce tailpipe emissions by 75% to 80%.
7
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.