![]() It is likewise the top reason behind Jeep Grand Cherokee overheating. Prolonged engine overheating eventually leads to more serious (if not potentially irreparable) engine damage.Ī faulty thermostat (with coolant leaks and a malfunctioning radiator fan) is often the culprit behind a vehicle that overheats only when idle. Once the thermostat gets stuck, the coolant no longer gets a chance to reach the radiator, which causes the engine to overheat rapidly. And usually, older thermostats are prone to get stuck in the closed position. High or inconsistent temperature readingsĮven if this condition were met, a thermostat could still fail due to age.However, not all stringently adhere to timely maintenance, causing the part to fail and manifest the below symptoms: Given the on-and-off nature of how it operates, a thermostat is subject to wear and tear and, therefore, warrants periodic replacement. It stays closed when your engine is cold and opens up to allow coolant to flow to the radiator when the latter heats up. Similar to the first two items, the thermostat is also dual-purpose. This occurrence leads to overheating and impaired engine function (or worse, severe engine damage). The part becomes unstable when internal erosion or contamination occurs and may stop working altogether. The water pump is the cooling system component that controls the flow of coolant and water through the engine block and heater core – hence, it is important to keep it stable. Problematic Water PumpĪlongside low coolant levels, issues with the water pump are the top causes of Jeep overheating. Cracked cylinder heads and head gaskets – or any other damage to the cooling system and its components – are often the culprits behind coolant contamination. If you have identified an internal leak and are not too savvy in carrying out the needed repairs, seek professional help right away.ĭo not forget coolant contamination, as it can also prevent your Jeep’s cooling system from performing effectively. Remember to include faulty seals, damaged head gaskets, radiator hoses, and all relevant connectors between them. When you smell this scent inside your vehicle, check for external or internal leaks by inspecting the radiator, water pump, and EGR cooler (where applicable). The last item enumerated is a sure-fire indicator of a coolant leak. A sweet-smelling odor begins to permeate your cabin.The coolant level sensor becomes faulty.High-temperature gauge is in the red (or near it).Check Coolant message or light illuminates.Two things immediately come to mind when drivers discover low coolant levels – either the coolant is leaking somewhere or refilling coolant levels as needed was missed (intentionally or otherwise).īut thanks to the below telltale signs, you no longer need to wait for the worst to happen before realizing that your coolant levels are below spec: Hence, it should be no surprise that insufficient coolant levels result in the engine overheating or seizing up completely. This particular substance is responsible for keeping the cabin inside warm during cold days and the engine cool when the weather is hot. Vehicle owners know how vital coolant is to keeping their Jeeps’ engines in optimal running condition. To avoid the hassle of having a busted engine while driving, stick around and continue reading this guide. It also sheds light on factors we may not be aware can predispose the engine to overheat. Today’s article aims to familiarize you with the most apparent causes of Jeep overheating and give you top tips on diagnosing the issue. Clogged radiator fins, cooling tubes, or coolant hose.To be more specific, below are twelve of the most common reasons behind Jeep overheating that you should be aware of: Some of these reasons are due to component wear and tear, while others result from poor vehicle upkeep and neglect. Slight variations in this temperature can be tolerated, especially if air conditioning is on or the vehicle has been idling for too long.Īnything above 200° F and your engine could overheat – in which case, you should stop and determine what is causing the spike in your engine temperature.Īmong the most common causes of Jeep overheating are low coolant levels, clogged radiator fins, heater core issues, air pockets, and blown head gaskets. Jeeps are known to safely operate at an engine temperature of 195° F. Disclosure: We may get commissions for purchases made through links in this post. ![]()
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