Coolant leaking externally from below the exhaust manifold.Since a visual inspection usually will not prove a head gasket leak, it is important to know the other symptoms so you can accurately diagnose a head gasket problem. Because much of the gasket can’t be seen without disassembling the engine, blown head gaskets symptoms can be very difficult to diagnose. Since the head gasket seals the coolant passage both from the atmosphere and the combustion chamber you can’t see much of the head gasket on a vehicle with the engine installed. To better understand why a head gasket might blow, check out this article on why head gaskets blow. ![]() This can happen regardless of the make or model of your car or the type of head gasket used. Due to the wide range of temperatures and relatively large surface area, it is not unusual for head gaskets to develop leaks over time. This means your head gasket has to seal both extremely hot, high-pressure combustion gases as well as engine coolant which can be anywhere from cold ambient temperatures to the normal operating temperature of your engine. The head gasket forms a seal between the engine block and the cylinder head. To understand the symptoms it can be helpful to understand why a head gasket might fail. Now that we understand what a head gasket it, it’s important to learn what head gasket failure symptoms look like to avoid higher expenses due to additional engine damage caused by driving with a blown head gasket. The head gasket also keeps coolant and oil out of the combustion chamber which is important for the same reasons you wouldn’t want coolant or oil leaking anywhere else. The head gasket is so important because it seals the combustion chamber allowing your car to build the proper compression and contain exhaust gases both of which aid in maintaining the efficiency of your engine. Every modern car has this gasket but they vary in their thickness and construction based on the manufacturer’s design of the engine. The head gasket lives between your engine block and cylinder head. Let’s start by talking about what a head gasket is. If you happen to own one of these vehicles, don’t worry it does not mean that you have a bad car or that you are going to spend lots of money. One such vehicle has such a bad reputation for head gasket problems there is a group of owners trying to get the manufacturer to have a recall on them. Also I checked the coolant level now and it's almost empty at the tank.There are some makes or models of cars that have a reputation for blowing head gaskets. Also someone recommend replacing the thermostat so I will be changing that as well as the coolant sensor this week and dumping out the coolant and flushing it again but is there anything I should know about this issue?Ĭould it be something else or is this the symptom of something else? At this point I'm not driving the car I don't want to cause anymore damage. I noticed as well there was some coolant that leaked from the coolant temperature sensors, but was told that wouldn't have a major issue from the guy at Autozone which he was the one who said replace the cap in the first place stating it could be a pressure problem. I parked and turned it off and seen coolant on the side of the engine That came from the reservoir which was boiling again. After some time of driving everything seemed good until at one point I came to a stop and I noticed some smoke. I let the car sit over night purchased a new cap and checked the car and the coolant level was low so I topped it off put the new cap and took it for a spin. ![]() Did a flush and when I added new coolant I burped the system as I was told.Įverything has been fine until that night. I did replace the reservoir a few months back due to the fact it had a crack in it and was leaking coolant. I looked under the hood and noticed it boiling at the tank. The other night I made it home from driving about 30 minutes from work and when I turned the car off I heard some noises. This is a 2011 Chevy Cruze 1.4 L Eco with 116xxx miles on it.
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