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 2009 Chevrolet Equinox, start with a thorough visual inspection of the vehicle. Look for any visible signs of coolant pooling under the car or around critical components such as the radiator, hoses, and water pump. Next, check the coolant level in both the reservoir and radiator; a significant drop in coolant can be a clear indicator of a leak. If these initial checks do not reveal the source, consider performing a pressure test on the cooling system. This involves pressurizing the system and monitoring for any pressure drops, which can pinpoint the location of a leak. Additionally, inspect the radiator and hoses for any signs of wear, such as cracks or bulges, and examine the water pump for leaks, as a malfunctioning pump can contribute to coolant loss. Don’t forget to check the heater core, as leaks here can also lead to coolant depletion. Finally, be alert for any unusual signs like white smoke from the exhaust or a sweet smell inside the cabin, which may indicate coolant entering the engine. By following this systematic approach, you can effectively identify and address any coolant leaks in your vehicle.
When diagnosing a coolant leak in a 2009 Chevrolet Equinox, it's essential to consider several common problems that could be at play. One frequent issue is loose hose connections, which can easily lead to coolant escaping from the system. Inspecting the hoses for any signs of looseness or wear can help identify this problem. Another potential culprit is a broken radiator, which can develop cracks or holes over time, resulting in significant coolant loss. Additionally, a failed water pump may not circulate coolant effectively, leading to leaks and overheating. It's also crucial to check for head gasket issues, as a compromised gasket can allow coolant to escape into the engine or exhaust system. A faulty thermostat can contribute to overheating and leaks as well, while a worn radiator cap can fail to maintain proper pressure, causing coolant to seep out. Addressing these issues promptly is vital to prevent further engine damage and ensure the vehicle operates smoothly. If you notice symptoms like overheating, unusual smells, or puddles of coolant under your car, it's time to investigate these common causes to keep your Equinox in top condition.
Addressing a coolant leak in your 2009 Chevrolet Equinox is crucial for maintaining the vehicle's performance and safety. Coolant plays a vital role in regulating engine temperature; a leak can lead to overheating, which may cause severe damage to engine components. If left unchecked, the engine could run excessively hot, resulting in catastrophic failure and expensive repairs. Additionally, a coolant leak can diminish the vehicle's cooling capacity, further increasing the risk of overheating. It's also important to recognize that a coolant leak might indicate underlying issues within the cooling system, such as a damaged radiator or a failing water pump. By addressing the leak promptly, you not only safeguard your engine but also prevent more extensive damage to other critical components. Therefore, if you notice any signs of a coolant leak, it is imperative to take action immediately to ensure the longevity and reliability of your Equinox.
Read about related problems experienced by other Chevrolet Equinox drivers like you.
See what others are asking about their Chevrolet Equinox. Get answers from RepairPal's community of auto experts and enthusiasts.
