![]() The Head gasket also seals the combustion chamber properly. *Out of all the above symptoms are related to coolant loss, smoking tailpipe and milky residue under oil cap are very strong indicators of a failed head gasket. And if you continue driving with an overheated engine, the engine block might warp or even crack. So head gasket might tear even more if the engine overheats. Interestingly, overheating the engine is the culprit for the damaged head gasket in the first place. The overheating issue might not crop up if the head gasket leak is very small. The coolant leak from the coolant channel means that the engine is likely to get overheated. And if you do then your suspicion should go towards the head gasket. But if you don’t see a pool of coolant under your car when you park it, you shouldn’t see a drop in coolant level. Coolant level could also drop due to leaking radiator or coolant hose. Now, when you’ll be burning coolant along with fuel, the coolant level will surely start dropping. ![]() But this smoke should go away when the engine is warmed up. Keep in mind, most cars will show vapor smoke during a cold start. But if the exhaust doesn’t smell like burnt oil, it’s the head gasket that has failed. ![]() Since the exhaust will be emitting smoke, one might think that the piston ring has worn off. The coolant will then will show at the tailpipe in the form of water vapor. But when the head gasket fails, coolant seeps into the combustion area while the engine is running. An intact head gasket will prevent any coolant to seep into the combustion area. The water coolant channel runs alongside the combustion chamber. Then you can be sure that the coolant is mixing with the oil. If that’s also showing signs of milky engine oil. If you drive only short distances, the engine won’t warm up and water will stay suspended in the oil.Īlternatively, you can also check the engine oil level dipstick. But, this little bit of water evaporates quickly when the engine gets warmed up. This condensation mixes with oil and forms a suspension. The condensation can collect in the oil pan if the car sits overnight with a cool engine. Keep in mind, this symptom can also appear if you drive very short distances. Head gasket seals the coolant channels but when it leaks, the engine oil will start turning milky due to this. This chocolaty liquid is formed when coolant water mixes with the engine oil.
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