When your radiator cap does not seal properly, air could make its way inside of the cooling system. If there is coolant fluid near the radiator cap, there could be damage to the pressure cap. That way, the engine can remain cool as you check it out. Then, let the engine cool for some time before popping the hood. If you notice your engine starting to steam from getting too hot, don’t look under the hood unless you’ve turned the engine off. Leaky coolant or air in the cooling system can lead to an overheated engine. This may give you a hint that this is the problem. Check to see if your overflow reservoir is draining slowly over the course of a few miles. In this situation you’ll likely notice a leak on the ground or in the engine bay when you reach your destination, but not when you start driving. The pressure will eventually be enough to force coolant through the tiny hole and your car will slowly lose coolant. As you drive, pressure in the cooling system will build. You will often see a pinpoint leak that only sprays coolant when the car is warmed up.Ī hose with a small hole may actually seal just fine when the car is cold. Most of the time the pressure isn’t high enough to rip the hose in half. If pressure in the cooling system is too high, you are likely to see one or more hoses start to spray coolant all over the engine bay. 5) Radiator Hose Bursts radiator hose ready to burst If this happens, inspect the cap to see if there is any damage. The vacuum won’t be released by the radiator cap properly and it will cause the radiator hose to collapse during the cooling down period. You may have a bad radiator cap if the radiator hose collapses. While you’re in there, check to make sure your coolant overflow tank is working properly. If you have a bad radiator cap, the coolant could get released too quickly and cause the reservoir to overflow. The radiator cap releases the extra pressure by sending some coolant into the overflow tank. 3) Overflowing ReservoirĬoolant goes into the reservoir tank as it expands. They may tell you the cap is leaking under pressure or intermittently. While you may not notice coolant leaking from under the radiator cap, look out for these white streaks.
When coolant leaks out of the radiator filler neck and dries, it often leaves white streaks behind. Related: 5 Causes of Coolant Loss Without Visible Leaks 2) White Streaks on Radiator Check to see if the radiator has holes in it or if the cap looks worn or damaged. If you notice coolant near the radiator or the radiator cap, then you clearly have leaky coolant. If the radiator cap is stuck, pressure may build inside of the radiator, which could cause cooling system components to leak or burst. Signs of a Faulty Radiator Cap 1) Leaking Coolant Other Cooling System Problems (Bad Thermostat).Animals love its sweet taste, so even a spilling a small amount on your garage floor can end up in the dog's stomach pretty quickly. Promptly wipe up any spilled fluid as it is highly toxic.
Always wear safety goggles when working on your Accord. Removing the coolant reservoir cap on a warm engine could cause the cap to fly off at a high rate of speed and fluid to spray out of the reservoir. These coolants will typically say 50/50 or pre-mixed on the front of the coolant bottle. Some coolants will come premixed-that is, you don't need to add any water. Mix the coolant / antifreeze with distilled water so that you have a combination of 50% coolant and 50% water.
#2003 HONDA ACCORD COOLANT RESERVOIR CAP MANUAL#
Be sure to check your owners manual to determine the correct type of fluid to add - for Hondas, it will typically be in a section titled Fluid Capacities in the back of your manual.
#2003 HONDA ACCORD COOLANT RESERVOIR CAP HOW TO#
The video above shows you where the coolant reservoir in your Accord is located and how to add coolant / antifreeze. Make sure to check your engine when it is cold for an accurate reading. Engine coolant / antifreeze circulates through your engine to keep it cool in the summer but won't freeze in the winter. Adding engine coolant (also known as antifreeze) to your 2003 Honda Accord is pretty easy.
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