Posted on 1/13/2026
Why Is My Car Overheating Even Though the Coolant Level Is Fine? If you’re driving around Coral Gables, Miami, or the 33145 area and notice your temperature gauge rising—even though your coolant level looks normal—you’re not alone. This is a common issue we see at our auto repair shop, and it often points to a hidden problem in the cooling system. Ignoring overheating can lead to serious engine damage, so it’s important to understand the possible causes. Common Reasons Your Car Is Overheating Stuck or Failing Thermostat The thermostat controls coolant flow. If it fails in the closed position, coolant can’t circulate properly, causing the engine to overheat quickly—even with a full reservoir. Cooling Fan Not Turning On In Miami traffic and hot weather, radiator fans are critical. A bad fan motor, relay, or temperature sensor can cause overheating while idling or stopped at lights, then cool down once you’re driving. Water Pump ... read more