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The Chrysler Pacifica nameplate has graced three models from the American carmaker. It was first used for the 1999 concept luxury minivan and was used once again for the mid-size crossover produced beginning in 2003. The five-door wagon with the front-wheel and four-wheel drive layout, however, was discontinued in 2007, making the 2008 model year the last available Chrysler vehicle with the same nameplate. In 2016, Chrysler resurrected the Pacifica branding. Even with the different models, the Chrysler Pacifica experiences overheating that are caused by various factors. Here are some causes, along with their solutions.
Among the common reasons a vehicle overheats are coolant leaks in the cooling system. Unlike other leaks, this type is easy to find since the coolant leaves traces as they seep out of the leaky component. Similarly, they can drip, spray, or even bubble from the opening. Another way to know that your Chrysler Pacifica experiences such leak is when the low coolant indicator lamp on the dashboard turns on. If so, then it is important to immediately check under the hood to spot where the coolant is leaking from.
When looking for the leaks, it is imperative to check certain components, such as the water pump, the radiator, the heater core, and the intake manifold gasket. Likewise, such leaks can occur on the freeze plugs and the hoses. In the event that one of these components suffers from a leak, then you should find liquid typically colored green, yellow, or orange. Replacing the worn components will easily solve the leaks and will prevent the engine from overheating again.
If you still encounter overheating issues despite ensuring that there are no coolant leaks, then the problem may have to do with the air trapped in the cooling system. Unlike the coolant, air inside the system will not cool, and this is the reason your engine will start to overheat. That is why it is important that no air will be trapped inside. Manually removing air is required as a measure to prevent overheating caused by an air lock.
To do so, locate the upper radiator hose and squeeze it. This, along with opening the bleeder screw, will pump the air out. Also, filling the radiator with coolant and waiting for some fluids to come out of the loosen bleeder screw will also guarantee that no air will remain trapped inside. Once all the air has been pumped out of the cooling system, you should have already eliminated the possibilities of your engine overheating.
Apart from the coolant leaks and air lock, a damaged component can also be the culprit. Some of the other parts that you should check are the fan, the thermostat, and the head gasket. The common problem with the fan is when it begins to malfunction. There are some instances when the fan on the Chrysler Pacifica stops operating. The thermostat is also known for not working properly. However, a head gasket issue will likely to cause more trouble. To prevent these components from causing overheating issues, replace them right away.