One of the first symptoms commonly associated with a bad or failing coolant reservoir is the need to constantly add coolant. Usually a bad or failing coolant reservoir will produce a few symptoms that can alert the driver that a problem has occurred and should be serviced. Because the coolant reservoir is part of the cooling system, when it has any issues it can quickly lead to issues with the engine. When the engine is cold, the pressure of the cooling system is low and more coolant is required, and when the engine is warm the pressure of the cooling system is increased and therefore less coolant is required.įor some vehicles, the coolant reservoir is an integral part of the system, and since it is also pressurized, the coolant reservoir becomes an even more important component to engine safety. Coolant reservoirs are required because engines go through cycles of expelling and absorbing coolant as they warm up and cool down. If you notice an oily surface in your coolant, immediately have your mechanic inspect your Grand Caravan for head gasket leakage.The coolant reservoir is the plastic reservoir mounted in the engine bay that stores the coolant for the engine. Taking off the coolant reservoir cap on a warm engine could cause the cap to up explosively and fluid to spray out of the reservoir. See our video on how to add engine coolant for tips on adding coolant to your Grand Caravan.Īlways wear safety goggles when working on your Grand Caravan. If you need to add anti-freeze, be sure to check your owners manual to determine the correct type of coolant to add - in Dodges, it usually located in a section titled Fluid Capacities towards the end of your manual. The video above shows you where the coolant reservoir in your Grand Caravan is located and how to check the coolant / antifreeze level. Engine coolant / antifreeze circulates through your engine to keep it cool in the summer but won't freeze in the winter. In order to get an accurate reading, your 3.8 liter engine should be cool to the touch when you check it. Checking the engine coolant (also known as antifreeze) level in your 2007 Dodge Grand Caravan is pretty easy.
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