The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.
When the head gasket begins to fail, the engine may have no symptoms at all. They only begin to occur when the leak has reached an engine oil passage, engine coolant passage or the engine cylinder.
When that happens, the engine may be very difficult to start, and run roughly when idling. There may be oil or coolant leaking, and the engine may begin to overheat, or at least run hot. At this point, there may be coolant in the engine oil pan — this will look creamy and lighter in color than the oil. Also, the radiator or engine coolant reservoir may have a gurgling sound, the presence engine oil, or smell of combustion. And the check engine light will come on.
The coolant being burned in the engine will produce white exhaust that smells sweet, like engine coolant. When the head gasket fails completely, the engine will overheat within minutes of starting, will stall and then won't restart.
A failing heater core may cause the car's interior to smell like engine coolant. The smell will become worse when the heater is turned on. The engine may also begin to run hotter until the vehicle is repaired.
The worst-case scenario is the engine overheating, which can cause extensive engine damage.
If the heater core is clogged, the air that blows when the heater is turned on will not be very hot.
Problems with the intake manifold gasket can create the following symptoms:
» LEARN MORE: Intake manifold gasket symptoms
A failing radiator can cause the engine to run hot or overheat. Most radiators are made of metal and plastic. The plastic parts can become brittle and crack over time, causing a leak of coolant (typically green or pink in color). All manufacturers have a recommended service interval for coolant renewal. As the coolant ages, the additives breakdown and being to form solid deposits. These deposits will build up in the passages of the cooling system and will eventually clog components, including the radiator. A leaking or clogged radiator must be replaced. Some automatic transmission cars will also have a transmission cooler integrated into the radiator. Lines going to and from the transmission circulate transmission fluid to help cool the transmission in heavy duty applications such as towing or off-roading. If this integrated cooler fails, it can allow transmission fluid and coolant to mix. This will causing shifting issues in addition to overheating.
A coolant leak may be noted from the hoses. Coolant hoses can be damaged by oil leaks, or age. This will lead to swelling or cracking, it is suggested to replace the hoses before they begin leaking to avoid potential overheating.
The bad thermostat can cause two different sets of problems, depending on whether it's stuck open or stuck closed.
A thermostat that is stuck open can cause the engine to run colder than normal and turn on the check engine light. It may also cause poor fuel mileage and the heater to blow cool air.
A thermostat that is stuck closed will cause the vehicle to overheat. If a new thermostat doesn't resolve engine temperature problems, the cooling system needs to be checked for other issues.
» LEARN MORE: Signs of a bad thermostat, and how to fix it
The two most common signs of a bad pump are leaks and noises.
Leaking water pumps can result in damage to the drive and timing belts, and cause the engine to overheat. A failed water pump can be caused by other problems in the cooling system, such as a bad thermostat, radiator or head gasket.
To effectively diagnose and fix a coolant leak in your 2002 Mitsubishi Lancer, start by ensuring your vehicle is parked on a level surface and that the engine has completely cooled down. This will allow for a safe and accurate inspection. Begin by visually checking for any signs of coolant leaks, particularly around the water pump gasket, which is a common culprit. If you notice any moisture, clean the area to better identify the source of the leak. Conducting a pressure test on the cooling system can also help pinpoint the leak's location. It’s crucial to address any leaks promptly, as neglecting them can lead to severe engine damage, such as overheating or a blown head gasket. While you work on repairs, remember to top off the coolant to maintain proper engine temperature and prevent further issues. By following this diagnostic approach, you can systematically identify and resolve the coolant leak, ensuring your Mitsubishi Lancer runs smoothly.
When tackling a coolant leak in a 2002 Mitsubishi Lancer, it's essential to understand the common problems that may be at play. Loose hose connections are often the first culprits, as they can easily allow coolant to escape. Additionally, a broken radiator or a malfunctioning water pump can contribute significantly to coolant loss. It's also important to inspect the radiator for signs of wear, such as corrosion or damage, which can lead to leaks. Another critical area to consider is the head gasket; if it begins to fail, it may not show immediate symptoms but can still result in coolant leaks. Owners should be vigilant for signs of a coolant leak, including engine overheating, a noticeable drop in coolant levels, or colorful puddles forming under the vehicle. By recognizing these symptoms early, Mitsubishi Lancer owners can take proactive steps to maintain their vehicle's cooling system and prevent more severe engine damage down the line.
Addressing a coolant leak in your 2002 Mitsubishi Lancer is not just a matter of convenience; it is a pressing concern that can have serious implications for your vehicle's health and your safety. Ignoring signs such as overheating, a noticeable drop in coolant levels, or colorful puddles beneath your car can lead to catastrophic engine damage. Overheating caused by a coolant leak can warp engine components, resulting in costly repairs that far exceed the expense of a simple fix. Moreover, the presence of white smoke from the exhaust is a clear indicator that your engine is struggling, and delaying repairs can exacerbate the problem, leading to a breakdown or even a complete engine failure. Therefore, if you observe any symptoms of a coolant leak, it is crucial to act swiftly to prevent further damage and ensure your vehicle operates safely and efficiently. Taking prompt action not only protects your investment but also enhances your driving experience by maintaining the reliability of your Mitsubishi Lancer.
See what others are asking about their Mitsubishi Lancer. Get answers from RepairPal's community of auto experts and enthusiasts.
Read about related problems experienced by other Mitsubishi Lancer drivers like you.
