If your Grand Am’s cooling system is leaking water or coolant, here are the most common places that it may be leaking from. The problem is that water will freeze in the winter time and cause the engine block, heads, freeze plugs, or some other part of the engine to freeze up.Ĭommon Places Your Cooling System Leaks Water If you, or whoever had the vehicle before you filled the cooling system up with water instead of antifreeze coolant, it could be leaking water. It is possible that your coolant system could be leaking water. If you’ve found coolant on the garage floor, and not leaking water, that’ll be an entirely different set of circumstances causing the leak. This is harmless water, and is nothing to worry about. It will usually produce moisture just behind the rear tires. Your Grand Am’s air conditioning system is going to produce water as a product of the cooling process. Some Water Under Your Grand Am Might be OK A lot of water leaking out of the tail pipe is certainly a cause for concern. Water can also leak out of the exhaust as this happens. It is way more noticeable in the winter time when white smoke billows out of your exhaust pipes. This is completely normal and should not be cause for alarm.Įxhaust System– Your Grand Am’s engine creates steam as part of the combustion process. Fifteen minutes on a hot day can be enough to get a trail to the rear wheels. If you there is a big puddle of water under the vehicle, it may be because it was left running in place for a while. Here are the most common reasons that water may leak from your vehicle (not coolant, that is covered below).Īir Conditioning System– Your Grand Am’s A/C system leaks water directly underneath the engine bay as a byproduct of its operation. There is a section further down the page with common radiator leak causes, if it’s coolant that you found has leaked from your Grand Am. If it is engine coolant, it’ll be coming from different places than water typically will, and will need to be addressed separately. It might not seem possible to determine the color of the liquid in question, but a paper towel allowed to soak up enough coolant definitely will begin to show pigment. Coolant is sweet smelling and is typically orange, green, or pink. If you are trying to figure out if your Pontiac Grand Am is leaking water, the first thing we need to do is determine if you have coolant or water underneath of the vehicle. It really depends on where you’ve found it, and if it is really water. Always protect yourself with safety glasses and gloves when working with the coolant on your Grand Am.If your Pontiac Grand Am is leaking water, it could mean a few different things are happening. An anti-freeze leak can cause the temp sensor to record high engine temperatures in a 2003 Pontiac Grand Am. If you ignore a small coolant leak long enough, you will run out of coolant, which leads to an overheated engine and other serious, but highly avoidable, problems. This video shows you where the coolant reservoir, hoses and connections on your 2003 Grand Am SE1 are located and the steps needed to fix minor leaks.Ī few things to note about coolant is that it is sweet tasting and highly toxic, so it can end up in the dog's stomach pretty quickly. Otherwise, your Grand Am may have a radiator leak. However, a coolant leak (aka an antifreeze leak) is most likely to occur where the hoses connect to the engine or radiator. Coolant / antifreeze can leak from the reservoir, radiator or any hose, in 2003 Grand Am with the 3.4 liter engine. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your Grand Am engine and keeps it from overheating. Leaking coolant / antifreeze is one of the more common types of leaking fluid from Grand Am engines. Follow the steps in this video to see how to fix minor coolant (antifreeze) leaks in your 2003 Pontiac Grand Am.
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