05/26/2026
Here are the most common signs your vehicle’s radiator should be inspected before it turns into a bigger repair:
# # # Warning Signs of a Radiator Problem
* **Engine overheating**
* Temperature gauge climbs higher than normal
* Steam coming from under the hood
* “Engine Hot” warning light appears
* **Coolant leaking under the vehicle**
* Bright green, orange, pink, or yellow fluid on the ground
* Sweet smell around the front of the vehicle
* **Low coolant levels repeatedly**
* You keep topping it up but it keeps disappearing
* **Rust, corrosion, or buildup**
* Visible rust on the radiator
* White or green crust around hoses or seams
* **Sludge in the coolant**
* Brown, muddy, or oily coolant inside the reservoir
* Can indicate contamination or internal engine issues
* **Radiator fan problems**
* Fan not turning on when engine gets hot
* Loud fan noises
* **Heater stops working properly**
* Weak heat inside the cabin can sometimes point to cooling system problems
* **Sweet or burning smell**
* Coolant has a distinct sweet odor
* Burning smell may indicate overheating coolant
* **Poor engine performance**
* Vehicle feels sluggish or runs rough when hot
# # # What a Mechanic Usually Checks
A cooling system inspection often includes:
* Pressure test for leaks
* Radiator cap test
* Hose inspection
* Thermostat operation
* Cooling fan operation
* Coolant condition and level
* Water pump inspection
* Checking for clogged radiator fins
# # # Don’t Ignore Overheating
Driving while overheating can damage:
* Head gaskets
* Cylinder heads
* Engine blocks
That can turn a smaller radiator issue into a very expensive engine repair.
Call us today for an inspection. 780-479-3217