Diagnosing Radiator Issues in Contemporary SUVs

Begin with inspecting your coolant reservoir — a depleted level can indicate a leak, but it might also result from corrosion. Scan the ground beneath your SUV, especially following an extended stop. Coolant colors commonly include green, pink, or orange, making small traces quick to identify. These drips may arise from a failing radiator core.

Next, inspect the radiator itself. Without visible external damage, mineral buildup inside the cooling passages can restrict flow. Over time, sediment from old coolant combined with iron oxide from internal components can clog the radiator fins, reducing efficiency and elevating operating temperatures.

A certified heat mapping analysis can reveal temperature anomalies that point to clogged passages — often invisible to the naked eye.

Another telltale sign is the presence of oil in the coolant or coolant in the oil. This typically indicates a compromised engine seal, which can exert excessive pressure on the radiator. If a cloudy, oily sludge appears on the oil cap, it’s time to investigate further. The radiator might look intact but may be failing under pressure due to an upstream engine problem.

Today’s SUVs are equipped with electric cooling fans and thermal probes that interface with the vehicle’s computer. A malfunctioning probe may deliver false readings, leading you to suspect radiator لوازم یدکی چری تیگو 7 پرو damage. Use an OBD2 scanner to identify fault indicators related to coolant temperature. Codes like P0117 or P0118 point to coolant temperature sensor issues, while code P0480 relates to cooling fan control.

Evaluate how old your coolant is. Vehicle makers advise a coolant flush every every 2–5 years. Expired coolant loses its protective additives and becomes corrosive, which can cause pinhole leaks, leading to hard-to-detect leaks.

If you’re unsure, a pressure test can locate internal failures. A professional will apply controlled pressure to replicate engine heat load and identify permeable seals. This is highly recommended for detecting concealed breaches that remain hidden without pressure testing.

Never overlook the thermostat and water pump. These parts collaborate to regulate engine heat. A failed thermostat can prevent proper coolant circulation, causing the radiator to overwork. Installing a new thermostat is a simple and inexpensive fix that can rule out a bigger problem.

Identifying cooling system failures in modern SUVs requires a blend of inspection, scanner data, and technical insight. Regular maintenance and prompt attention to initial red flags can protect your investment and ensure years of reliable performance.