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.
When troubleshooting coolant leaks in your Dodge Dart, begin by visually inspecting the engine bay and undercarriage for signs of coolant, which typically appears as a pink or green fluid. Start with the most accessible areas, such as checking the radiator for cracks or corrosion, and ensure that all hose connections are tight and secure. If you notice any loose or damaged hoses, replacing them can often resolve the issue without further complications. Next, examine the water pump for any signs of leakage, particularly around the seal, as this is a common failure point. If the leak persists, consider flushing the cooling system to remove any debris that may be causing blockages, but be aware that this may not always solve the problem if the radiator is severely clogged. If you suspect that the issue lies with the plastic fittings or clamps, replacing these components can prevent future leaks. By following this methodical approach, you can effectively identify and address coolant leaks, ensuring your Dodge Dart runs smoothly and efficiently.
When dealing with coolant leaks in a Dodge Dart, it's essential to understand the common problems that can arise within the cooling system. One of the most frequent issues is the deterioration of hose clamps, which can lead to leaks at the connection points. Additionally, the plastic quick connects that join hoses can become brittle over time, resulting in cracks or breaks that allow coolant to escape. Another potential failure mode is the coolant reservoir itself, which may develop cracks or leaks due to age or exposure to heat. It's also important to consider the condition of the hoses; they can become worn, cracked, or pinched, leading to leaks. If you notice symptoms such as a sweet smell, colorful puddles, or overheating, these could indicate a coolant leak. By being aware of these common problems, you can more effectively diagnose and address any issues with your Dodge Dart's cooling system, ensuring your vehicle remains in optimal condition.
Addressing a coolant leak in your Dodge Dart is not just a matter of routine maintenance; it is an urgent necessity that can have serious implications for both your vehicle's performance and your safety. A coolant leak can lead to engine overheating, which, if left unchecked, may result in catastrophic engine damage and costly repairs. Moreover, the presence of coolant leaks poses safety hazards, as the toxic nature of coolant can be harmful to pets and children if ingested. By promptly addressing any signs of a coolant leak, you not only protect your engine from potential damage but also ensure a safer environment for those around you. Timely intervention is key to maintaining the efficiency and reliability of your vehicle, making it essential to act quickly at the first sign of a leak.
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