Why does my car only overheat when I accelerate quickly or drive hard?

Low coolant is only one reason why engines will overheat. Poor airflow, blocked passages, old hoses, bad radiator caps, blown headgaskets can all cause overheating. A damaged radiator, low coolant, faulty radiator cap, or obstructed radiator can also be at fault.

Why does my car overheat when driving slow?

When you’re driving, the normal airflow will cool down the coolant in the radiator. However, when you’re driving slowly or sitting still, the fan keeps the air moving so that your coolant can still get cooled down. It’s even possible that debris got lodged in the fan and is blocking it so it can’t spin.

What does it mean when car goes from cold to hot while driving?

Temperature Gauge is Normal As long as the needle is somewhere in the middle, it’s normal. Even if the engine is being cooled properly, there are days depending on the condition where the vehicle may run hotter than usual. This is often due to stop and go driving in hotter temperatures, especially during the summer.

How do I know if my car thermostat is bad?

Symptoms of a Failing Car Thermostat

  1. The temperature gauge reads high and the engine overheats.
  2. The temperature changes erratically.
  3. The vehicle’s coolant leaks around the thermostat or under the vehicle.

What to do if your car engine overheats while driving?

What To Do If Your Car Overheats Turn On The Heater. It sounds counterintuitive, but Reina recommends turning on the heater. Pull Over. If your car continues to overheat after you’ve been driving for a few minutes with the heater on, pull over and cut the engine off-it’s the safest Be Patient. Add Coolant. Drive To A Service Station.

What happens if you drive your car while overheating?

If you let your car overheat and keep driving, the cylinder heads will eventually begin to warp. When this happens, it can lead to a blown head gasket, which would require a lengthy and expensive repair.

What are the signs of a car overheating?

Some of the most common signs of your car overheating are: Steam or water vapor (which often looks like smoke) pouring out of the hood of your car. The needle on your temperature gauge creeps up quickly past the normal limit. An unusual smell coming from the engine.

Why is my car overheating at high speeds?

The potential causes of a car overheating at highway speeds are a stuck thermostat, a restricted radiator, or a kinked hose. Regardless of the problem, you’ll likely need a mechanic’s help in finding and fixing this issue.