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
If a vehicle is overheating, a bad thermostat could be the problem, and a damaged thermostat housing is more likely to produce a coolant leak, either from a cracked or warped housing or a failed seal to the engine. The thermostat housing can be made of metal or plastic. And the housing can be a stand-alone part that is separate from the thermostat, or (on later model vehicles) can be integrated with the thermostat and replaced as a single unit.
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.
When diagnosing a coolant leak in a 2012 Honda Fit, it's crucial to follow a methodical diagnostic approach that prioritizes simpler checks before moving on to more complex assessments. Begin by inspecting the ground beneath your vehicle for any signs of coolant puddles, as this can quickly indicate a leak's presence. Next, carefully examine the radiator and hoses for visible cracks or wear, as these are common sources of leaks. If no obvious issues are found, conducting a pressure test on the cooling system can help uncover hidden leaks that may not be immediately visible. Additionally, inspect the radiator cap for any signs of damage, as a compromised cap can lead to coolant loss. It's also important to check the water pump and heater core, as leaks in these components can contribute to overall coolant issues. Lastly, assess the cylinder head gasket for any signs of leakage and keep a close eye on your coolant levels to identify any consistent loss. By systematically following these steps, you can effectively diagnose the source of the coolant leak and take appropriate action to resolve it.
When dealing with coolant leaks in a 2012 Honda Fit, it's crucial to understand the common culprits that may be at play. One of the primary sources of leaks can be a damaged radiator, which may develop cracks or corrosion over time, leading to coolant escaping. Additionally, a faulty radiator cap can create pressure imbalances, resulting in leaks. Worn-out hoses are another frequent issue; as they age, they can crack or become brittle, allowing coolant to seep out. The water pump, responsible for circulating coolant, can also fail and leak, particularly if its seals are compromised. In more severe cases, a cracked engine block may be the source of the problem, which can lead to significant engine damage if not addressed. Lastly, loose or damaged hose clamps can prevent a proper seal, causing coolant to leak from the connections. Identifying these issues early is vital to maintaining your vehicle's health and preventing overheating, making it essential for DIYers to be aware of these potential problems.
Addressing a coolant leak in your 2012 Honda Fit is an urgent matter that should not be overlooked. Ignoring this issue can lead to severe engine overheating, which may result in costly repairs or even complete engine failure. Symptoms such as a noticeable drop in coolant levels, the presence of white smoke from the exhaust, or colorful puddles beneath your vehicle are clear indicators that immediate action is required. If left unaddressed, these leaks can escalate, causing further damage to the cooling system and compromising your vehicle's overall performance and longevity. For DIY enthusiasts, recognizing the urgency of these symptoms is crucial; timely intervention not only safeguards your engine but also enhances your vehicle's reliability on the road. Therefore, if you suspect a coolant leak, it is imperative to diagnose and repair the issue as soon as possible to prevent more significant complications down the line.
See what others are asking about their Honda Fit. Get answers from RepairPal's community of auto experts and enthusiasts.
Read about related problems experienced by other Honda Fit drivers like you.
