Q: Car overheating due to radiator crack

asked by on

The temperature gauge in my car is rising when I idle or have the AC on. I found a crack in the radiator and had it sealed in the meantime.

When your engine is idling, the vehicle is likely stopped which lowers the airflow through the radiator. The more airflow the radiator receives the more likely the engine is to remain cool. When the air conditioning is turned on the engine must work harder to run the A/C compressor and will therefore heat up more. A coolant leak in the radiator is most likely the cause of your issue. At the soonest possible moment I would recommend having your radiator replaced in order to prevent engine damage from overheating or being stranded on the side of the road.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car overheating due to radiator crack

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car jerking past 10 MPH

The shaking steering wheel at relatively low speeds is telling me that there is a tire on the front end of your vehicle that has a broken belt, causing it to be out of round; the jerking could be the...

Q: Replaced subframe. Vibration and noise during acceleration. Could it be the inner CV joint / axle?

Hi there. The vibration and noise upon acceleration could possibly be an inner CV wobble, as the result of excessive play in the inner CV joint. A broken subframe may have caused the wear. Replacing the subframe and having the...

Q: Q: Car over heating

If there are no leaks and no blockage in the system or problems with the cooling fan, then you may have a water pump that has worn impellers that may need to be replaced. I would recommend having the car...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...