What causes a cracked radiator?

Written by robin durand
  • Share
  • Tweet
  • Share
  • Email

A vehicle's radiator helps to keep the engine from overheating. It contains a mixture of water and coolant, and if it is cracked, your car can break down. A bad radiator can also lead to engine damage. Several things can cause a cracked radiator.

Other People Are Reading


Rust can destroy the metal in the radiator, causing a crack. Car radiators are prone to rust because they hold water and are usually at least partly metal.


The radiator has a thermostat that helps to regulate the amount of fluid used to balance the engine temperature. A faulty thermostat can cause overheating or high coolant pressure inside the radiator, leading to a crack.

Head Gasket

A leaking head gasket can cause overheating or high coolant pressure, resulting in a crack.


Summer heat makes it more difficult for the radiator to be cooled by outside air. Not maintaining the radiator fluid can lead to overheating and a cracked radiator.


Frigid winter temperatures can lead to a cracked radiator. If you don't maintain the radiator fluid properly, it can freeze and expand inside the tank, causing small fissures to become a crack.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the eHow.co.uk site, you consent to the use of cookies. For more information, please see our Cookie policy.