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 a coolant leak in your 2012 Suzuki Kizashi, start with a thorough visual inspection of your vehicle. Look for any colored puddles beneath the car, as these can indicate the presence of coolant, which may appear in various colors such as blue-green, pink, or orange. Pay attention to any warning lights on your dashboard, particularly the coolant warning light or 'check engine' light, as these can signal potential issues. Once you've checked for visible signs, ensure the engine is cold before opening the radiator cap or coolant reservoir to avoid burns. Check the coolant level; if it's low, top it up and monitor it after driving to see if it drops again, which would suggest a leak. If you still can't locate the source, consider using a cooling system pressure testing kit to pressurize the system and listen for leaks. For more elusive leaks, adding a UV dye to the coolant can help you identify the problem area when scanned with a UV light. Common leak sources include hoses, the radiator, and the water pump, so inspect these areas closely. By following this systematic approach, you can effectively diagnose the coolant leak and determine whether you can handle the repairs yourself or if you need professional assistance.
When dealing with coolant leaks in a 2012 Suzuki Kizashi, it's essential to understand the common problems that may arise within the cooling system. One frequent culprit is a bad radiator cap, which can fail to maintain the necessary pressure, leading to coolant boiling over. Additionally, inspect the hoses and connections, as wear and tear can create small holes or loose clamps that allow coolant to escape. The coolant reservoir is another area to check; cracks or damage here can result in significant leaks, especially if the rubber hose becomes disconnected. Internal leaks, often caused by a blown head gasket or cracked engine head, are serious and require immediate attention to prevent engine damage. Furthermore, corrosion or damage to the radiator itself can lead to leaks, particularly in extreme temperatures. Don't overlook the water pump, as a failing seal can also contribute to coolant loss. Lastly, the overflow reservoir and expansion tank should be examined for any signs of cracks or damage. By thoroughly inspecting these components, DIYers can effectively diagnose and address coolant leaks, ensuring the longevity and performance of their vehicle.
Addressing a coolant leak in a 2012 Suzuki Kizashi is not just a matter of routine maintenance; it is an urgent necessity that can prevent catastrophic engine damage. A coolant leak can lead to engine overheating, which poses a serious risk of warping the cylinder head or cracking the engine block. Additionally, a compromised cooling system can depressurize, causing the coolant to boil and evaporate more rapidly, exacerbating the problem. Ignoring these symptoms can trigger the check engine light and affect critical sensors, leading to further complications. Visible signs such as pooling liquid, steam from the engine bay, or a sweet smell inside the cabin are clear indicators that immediate attention is required. By promptly identifying and repairing the source of the leak—whether it be a cracked hose, loose clamp, or faulty radiator cap—you can prevent more extensive and costly repairs down the line. Therefore, it is crucial for DIY enthusiasts to act swiftly to maintain their vehicle's performance and safety.
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