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Why does a car smoke and leak antifreeze?

Smoke

There are several reasons why a car may smoke:

1. Coolant Leak: If the car is constantly leaking coolant, it will eventually overheat, causing the engine to overheat and smoke.

2. Oil Leak: A car with an oil leak can also end up smoking. When the oil leaks onto the engine's hot parts, it burns off and creates smoke.

3. Transmission Fluid Leak: A leaking transmission can cause smoke, as the fluid will heat up and burn.

4. Electrical Problem: Rarely, an electrical problem can also cause a car to smoke. When an electrical short occurs, it can create sparks and flames that can ignite nearby materials and cause smoke.

5. Other Issues: In rare cases, a car can smoke due to other issues such as a faulty turbocharger, a blown head gasket, or piston ring failure.

Antifreeze Leak

There are also a few reasons why a car may be leaking antifreeze:

1. Damaged Radiator: One common cause is a damaged radiator, which can crack from wear or be damaged in an accident.

2. Faulty Thermostat: If the thermostat fails to open or close properly, it can cause the engine to overheat and lead to an antifreeze leak.

3. Corrosion: Over time, the hose on the radiator can become corroded and develop leaks.

4. Damaged Pump: A faulty water pump can also leak antifreeze, as the pump is responsible for circulating the coolant throughout the engine.

If you notice your car is smoking or leaking antifreeze, it is important to have it checked by a mechanic as soon as possible to identify and address the problem.