Signs Your Engine Is Overheating (And What to Do About It)
An overheating engine is one of the most common—and dangerous—problems drivers face. Ignoring the warning signs can lead to serious engine damage and expensive repairs. Here’s how to spot the symptoms early and what to do if your car engine is overheating.
Common Signs Your Engine Is Overheating
Temperature Gauge Rising
One of the first indicators is your temperature gauge creeping into the red zone. Most cars have a dashboard gauge or a warning light (usually shaped like a thermometer). If it spikes, take action fast.
Steam or Smoke From Under the Hood
Seeing white steam coming from the engine bay is a red flag. It usually means your coolant is boiling, and the engine is dangerously hot.
Strange Smells
Burning oil, rubber, or a sweet maple syrup smell (coolant) can all signal overheating or coolant leaks.
Ticking or Knocking Noises
Overheating thins your engine oil, reducing lubrication. If you hear ticking or knocking, pull over immediately.
Loss of Power or Engine Stalling
An overheating engine may lose power, sputter, or shut down to prevent internal damage. If your car feels sluggish or unresponsive, overheating may be the cause.
What to Do?
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What to Do If Your Engine Is Overheating
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Pull over safely and turn off the engine
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Turn off the A/C, turn on the heater (to transfer heat away from the engine)
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Open the hood carefully—never touch a hot radiator
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Wait 30+ minutes before checking coolant levels
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Call roadside assistance or visit your local auto repair shop
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Prevent Engine Overheating With Routine Maintenance
Preventing overheating is easier (and cheaper) than fixing it. Here’s what to check regularly:
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Coolant levels and quality
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Radiator hoses and clamps
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Water pump performance
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Thermostat function
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Radiator fan operation
Need parts? AAA Million Auto Partshas everything you need—from coolant and radiator hoses to thermostats and water pumps.
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Talk to an Expert or Shop Online
If your engine's running hot or you're not sure what’s wrong, our auto experts are here to help. Stop by AAA Million Auto Parts or shop quality parts online for fast fixes and trusted brands.