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 2007 Ford Edge, start with a thorough visual inspection of the engine bay and the area beneath the vehicle. Look for any signs of coolant, such as puddles or white residue, particularly around hoses, the radiator, and the water pump. If you don’t find any obvious leaks, consider using a cooling system pressure tester, which can help identify leaks by pressurizing the system and forcing coolant out of damaged areas. Next, inspect the radiator cap for wear, as a faulty cap can lead to leaks. Pay close attention to all hoses connected to the cooling system, checking for cracks or bulges that could indicate wear. Additionally, examine the radiator itself, focusing on seams and connections where leaks are common. Don’t overlook the water pump; look for any signs of coolant dripping or a damaged gasket. Finally, monitor the coolant level in the reservoir; a sudden drop without visible leaks may suggest an internal issue, such as a blown head gasket. By following this diagnostic approach, you can systematically identify and address the source of the coolant leak in your vehicle.
When tackling a coolant leak in a 2007 Ford Edge, it's essential to understand the common problems that may arise within the vehicle's cooling system. Loose hose connections are often the primary culprit, as they can easily become unseated over time, leading to leaks. Additionally, a broken radiator can significantly contribute to coolant loss, as cracks or punctures in the radiator can allow coolant to escape. Another frequent issue is a failed water pump, which not only can leak coolant externally but may also lead to internal leaks that compromise engine oil. Other factors to consider include poor coolant concentration, which can affect the system's efficiency, and low coolant levels that may indicate a leak elsewhere. It's also wise to inspect the thermostat, radiator fan, and any cracked components, as these can exacerbate coolant loss. Regular maintenance and inspection of these elements are crucial for preventing leaks and ensuring the longevity of your Ford Edge's engine. By being proactive and addressing these common issues, DIY enthusiasts can maintain their vehicle's performance and avoid more severe problems down the line.
Addressing a coolant leak in your 2007 Ford Edge is not just a matter of routine maintenance; it is an urgent necessity to safeguard your vehicle's performance and your safety on the road. Coolant plays a vital role in regulating engine temperature, and a leak can lead to overheating, which may cause severe damage to engine components. If the engine overheats, it risks seizing up, resulting in expensive repairs or even a complete engine replacement. Moreover, a coolant leak can create hazardous driving conditions, as overheating while on the road can lead to sudden breakdowns or, in extreme cases, fire hazards. Ignoring this issue can also exacerbate damage to other critical components of the cooling system, such as the radiator or water pump, leading to even higher repair costs. Therefore, it is imperative to address any signs of a coolant leak promptly to avoid these serious consequences and ensure the longevity and safety of your vehicle.
Read about related problems experienced by other Ford Edge drivers like you.
See what others are asking about their Ford Edge. Get answers from RepairPal's community of auto experts and enthusiasts.
