MY SATURN VUE 2003 6 CYLINDER IS leaking anti freeze
The low coolant light has been on and goes off for about two hours after filling. Steam has started showing today when I started the car. The leak has progressively gotten worse since Friday. It goes in the shop Friday. I see on the passenger side a steady drip. There is a noticeable puddle of antifreeze under this area of my car as well. I've heard everything from a thermostat, heater core ( my heater works fine), to a possible water pump. Where is the water pump located on a Saturn Vue. I just want to have some idea of what I'm getting into when the repairman tells me what is going on.
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one normally fills the overflow tank not the rad and not with water, but with coolant. if filling the tank or rad - you must wait until the temperature has cooled down so that the coolant does not steam-off. If adding coolant and it is taking a lot -- that means what was in it has boiled off or leaked out. The coolant goes into the rad as well as into the engine block coolant galleries and water pump.
i'd change the engine temperature sender unit , or just disconnect it for a while and see if the gauge symptoms disappear , if they do then change the temp sender unit,if the symptoms remain i'd say get the OBD codes read as may have a faulty dash component
Your mechanic needs to figure out where the coolant is going. If it is not showing up under the car or on the floor mats in the car, then the problem may be either a leaking head gasket or in your radiator. If it is the radiator, coolant may be getting into your engine oil and this is very serious.
There may be a thermostat problem, but your symtoms indicate low coolant level. When coolant is too low, it will not circulate, so you get no heat in car, and the coolant remaining in engine block overheats because no cool fluid coming in.
You need to fill the system up properly then look for leaks.
With cold engine, open radiator cap. Fill with antifreeze directly in radiator. Start engine, top up rad if level drops. Put heat control on Hot. Fan on low, heat on high. Gently rev engine and top up rad as needed. IF as engine heats up, it starts kicking fuild violently out of radiator, then the thermostat is bad. if not, then recap radiator, top up overflow bottle and you're done. Look under car for any sign of leaks. Steady dripping indicates a leak, then address that.
You will need to have the system leak tested to find the leak but if your not added coolant and this is the first time then i would fill radiator and resivior and keep an eye on it and if it goes low again then have the systemmtested for leaks , it may have a leaking waterpump or a leaking hose. hope this helps.