These hoses can wear out over time and can develop holes or can rupture spewing coolant everywhere. It's an easy fix yourself and can save you lots of money.
In order to make sure you get the right part, make sure you know the year and the engine you have. This can be found under the hood on the Vehicle Emission information sticker.
The model year
Engine size and family/type.
You will also want to buy coolant to refill your system.
Pull back on the air filter case in order to expose the other end of the hose, hidden underneath the front edge of the air cleaner assembly.
You'll probably want another set of hands to help you with this. If you are having difficulty working in the limited space, you can remove the air cleaner assembly completely for better access.
Use the channel locks again to remove the clamp securing the hose to the radiator.
Turn your car on and let it warm up for about 5-10 minutes. You want to wait until your thermostat opens, and allows coolant to circulate through your system.
There is a bleeder valve that allows air to escape so not to be trapped in a high spot in the cooling system above the thermostat. Loosing this slightly will allow the air to bleed out of the system. You can re-close it as soon as you see coolant leaking from it.
After it is cool, top off the coolant again by filling up the radiator and checking the coolant reservoir. Keep an eye open for leaks and check your coolant reservoir occasionally over the next couple days.
Never open the radiator cap while the engine is hot. Pressurized steam can cause serious injury.