If you have a cracked radiator, your check engine light may not come on immediately. But if you notice an issue, you should never drive with a cracked radiator. Driving without a working radiator can cause your car to overheat, stop working altogether, or even catch on fire! Driving with a cracked radiator is simply not worth the risk.
Can radiator cause check engine light?
Low coolant in the radiator of your car can trigger the malfunction illumination light (MIL), also known as the "check engine" light. Low coolant can affect the internal temperature of the engine, which is protected by the antifreeze.
Will a bad radiator throw a code?
If the coolant temperature sensor goes bad it can send a false signal to the computer and throw off the fuel and timing calculations. It is not uncommon for the coolant temperature sensor to fail and send a permanently cold signal to the computer.
Can you still drive with a cracked radiator?
A cracked radiator can be dangerous to drive with because the engine may overheat. A cracked radiator does not allow the proper amount of coolant to reach the engine, which causes the overheating. Contact the professionals at YourMechanic to make the correct diagnosis and to repair the radiator properly.
Related Question Can a cracked radiator cause check engine light?
Can check engine light turn itself off?
A check engine light will shut itself off if the condition that caused it is remedied. If you then did a bunch of highway driving before changing the oil, the specs may have dropped back into the normal range, causing the light to go off.
Can I fix a crack in my radiator?
If you are able to locate a crack in your radiator, you may be able to repair it using an epoxy. First clean the area around the crack thoroughly, as any dirt or grease may prevent the epoxy from establishing a seal. Radiator epoxy can be purchased at most auto parts stores.
What is the life expectancy of a radiator?
A more powerful engine gives out more heat so it will need an upgraded radiator to handle the higher heat output effectively. A properly maintained radiator should last at least 3 years, and up to 8-10 years.