How to fix a coolant hose in the back engine - 2000 Mercury Villager

Locate the leak. This can be difficult, so take your time. Some leaks, such as those in the freezer plugs, are behind the engine mount or other components. You may need to inspect the car from underneath to detect this type of leak.

Buy an anti-leak product and add it to the coolant to fix small radiator leaks. You can find this product at any auto shop for around $10. It's effective in 80 percent of minor leaks.

Patch a small radiator leak by soldering or using a high-temperature epoxy. This is another solution to fix a small leak. Other options are to have it fixed at a specialty shop or simply to replace it. If the heater core is leaking, replacement is the best choice.

Fix any cracked, busted or leaking hoses by replacing them. Simply remove both clips on the hose, pull off the hose and replace it with the new one. Make sure to put the clips back on.

Remove a cracked reservoir, clean it and dry it up. Apply plumber's goop, which is a type of glue, and reinstall it. If replacement is necessary, ensure that you route the hoses correctly from the radiator to the reservoir. Additionally, it's important that they are free of kinks so the coolant can flow freely.