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.
When addressing coolant leaks in a 2012 Dodge Journey, it's crucial to follow a methodical diagnostic approach that prioritizes simpler checks before moving on to more complex issues. Begin with a comprehensive visual inspection of the coolant reservoir, radiator, and all hoses, searching for any visible signs of leakage, such as green or yellow fluid pooling beneath the vehicle or on engine components. If no obvious leaks are detected, a pressure test of the cooling system can be invaluable, as it may uncover hidden leaks that are not immediately visible. Additionally, keep an eye on the coolant levels over time; a consistent drop in levels is a strong indicator of a leak somewhere in the system. Focus on common failure points, particularly the plastic wye and T-connectors, which are known to be problematic in Dodge Journeys. It's also important to check for any signs of coolant mixing with engine oil, as this could indicate a serious issue like a head gasket leak. Lastly, monitor the vehicle's temperature gauge while driving; a rapid increase in temperature after adding coolant can signal a significant leak. By systematically following these steps, you can effectively diagnose and resolve coolant leaks in your Dodge Journey.
When dealing with coolant leaks in a 2012 Dodge Journey, it's essential to understand the common culprits that may be at play. One frequent source is the plastic wye connector, which is prone to cracking and typically located at the rear of the engine compartment. Additionally, inspect the hoses and their connections, as wear and tear can lead to leaks at these junctions. The radiator itself is another critical area to check; signs of coolant pooling or steam from the front grille may indicate a leak that could necessitate repairs or replacement. Don't overlook the possibility of leaks from drain lines or other components, which can sometimes be less obvious but equally problematic. Furthermore, a failed oil cooler can cause coolant to mix with oil, leading to significant issues within the cooling system. Lastly, ensure that the coolant reservoir and its connections are intact, as leaks can also originate from this area. By systematically checking these components, you can effectively diagnose and address coolant leaks in your vehicle.
Addressing a coolant leak in a 2012 Dodge Journey is of utmost urgency due to the immediate risk of engine overheating and subsequent damage. When coolant levels drop rapidly, the engine can overheat, leading to catastrophic issues such as warped cylinder heads or cracked engine blocks. Even subtle leaks, which may not be easily visible, can cause significant harm as they allow coolant to evaporate or burn off, further complicating detection. Common culprits for leaks in this model include the plastic wye connector and heater hoses, which are prone to failure. Regularly checking coolant levels and inspecting for leaks around hoses and connectors is essential. If a leak is identified, prompt replacement of the faulty components is crucial to safeguard against costly repairs and ensure the longevity of your vehicle. Ignoring these symptoms can lead to severe consequences, making it imperative to act swiftly.
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.
Read about related problems experienced by other Dodge Journey drivers like you.
See what others are asking about their Dodge Journey. Get answers from RepairPal's community of auto experts and enthusiasts.