![]() Refer to the service manual for specific diagnostic, repair and tool information for your particular vehicle. Information is accurate and true to the best of AutoZone’s knowledge, however, there may be omissions, errors or mistakes.īe sure to consult your owner’s manual, a repair guide, an AutoZoner at a store near you, or a licensed, professional mechanic for vehicle-specific repair information. Let it sit overnight and turn your engine on to test the seal.Īdvice, how-to guides, and car care information featured on and AutoZone Advice & How-To’s are presented as helpful resources for general maintenance and automotive repairs from a general perspective only and should be used at your own risk. Once the area is completely dry, work your epoxy into a malleable putty and create a coat at least an eighth of an inch thick. Once you’ve found a visible crack, clean the area thoroughly with brake cleaner exercising caution not to damage anything in the surrounding area. Turn your engine on again to see if it has properly sealedĪnother solution is to use radiator epoxy.Run your engine for approximately 10 minutes and then let it sit overnight.Top off your radiator with coolant and water and seal your system.Once your engine is cool, pour your sealant directly into your cooling system.While this sealant isn’t as effective as the professional repair solution, it provides you with a reliable seal as you make your way to your local auto parts store or mechanic: Using a commercial product, like Bar’s Leaks, offers a more reliable seal and avoids any additional damage to your vehicle, but there are a few household items you can use to fix your radiator temporarily in case of an emergency.įirst, an easy solution for most leaks is commercial leak sealant. Depending on the situation you’re in, you can use either emergency fixes or commercial products. There are a few common ways to fix your radiator. If you don’t immediately see any leaks, turn on your engine and inspect your engine compartment. As best you can, inspect the radiator, the end tanks, reservoir, and any surrounding tubing. A visual check of much the radiator may be difficult as it is located typically behind your air conditioning condenser and partly covered by a fan shroud. Once your radiator is clean, check for any signs of cracks or leaks. Avoid wiping any part of the radiator as this could cause further damage to the fragile cooling fins of the radiator. To spot a leak, it’s best to first clean your radiator and surrounding components. Safety glasses and gloves are recommended for safe inspection and repair. Use safety gear to ensure a safe maintenance routine. Radiators are pressurized systems, so be extremely cautious before opening your system or working in your engine compartment. Open the hood and wait up to a few hours before the engine is fully cooled. Park your vehicle and wait for the engine to completely cool. ![]() ![]() There are many areas of your radiator that could be cracked, so finding the leak can take some time. Any yellowish or black colored liquid could be motor oil, and an orange or green color typically indicates a coolant leak.īefore you learn how to use radiator stop leak, you need to find the source of the leak. Condensation naturally forms as your AC is operating, so this isn’t a cause for concern. One of the most common sources of liquid dripping from your vehicle is your air conditioner. Driving while your temperature gauge is too high could damage your engine and create additional costly repair issues. A slightly higher temperature may be caused by other issues or by a minor leak, but if your engine temperature climbs too high you should avoid driving your vehicle. Discoloration or rust in your engine bayĪ rising temperature gauge is one of the easiest signs to spot.Puddles of green or orange coolant under your vehicle.Here are the common signs of a radiator leak to watch out for: ![]() A small leak may be difficult to notice at first, but a major leak should be easy to identify. First, it’s important to check for signs of a leaking radiator. ![]()
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