* Coolant leaking onto exhaust manifold: If coolant is leaking onto the exhaust manifold, it can produce white smoke. This is because coolant is made up of water and ethylene glycol, which are both flammable liquids. When these liquids come into contact with the hot exhaust manifold, they vaporize and create smoke.
* Blown head gasket: A blown head gasket can also cause the engine to smoke after adding antifreeze. This is because a blown head gasket allows coolant to leak into the combustion chambers. When this happens, the coolant is burned along with the fuel, which produces white smoke.
Engine Smells
* Antifreeze leaking: If antifreeze is leaking from the engine, it can produce a sweet smell. This is because antifreeze is made up of ethylene glycol, which has a sweet odor.
* Overheating engine: An overheating engine can also produce a burning smell. This is because the oil and other fluids in the engine can burn when the engine overheats.
If you notice that your engine is smoking or smells after adding antifreeze, it's important to have the problem diagnosed by a qualified mechanic. This will help to prevent any further damage to your engine.
