Engine making noise and leaking coolant but not overheating

You do have a coolant leak, coolant is on the ground under the car then? The noise you describe is from a badly overheated engine. I think you have blown head gaskets

An overheated engine can be caused by anything that decreases the cooling system's ability to absorb, transport and dissipate heat; therefore engines can overheat for a variety of reasons. Let's take a look at some of the most common causes.
Cooling System Leaks
This is the primary cause of engine overheating. Possible leak points include hoses, the radiator, water pump, thermostat housing, heater core, head gasket, freeze plugs, automatic transmission oil cooler, cylinder heads and block. Perform a pressure test. A leak-free system should hold pressure for at least one minute.
Wrong Coolant Concentration
Be sure to use the coolant recommended by your vehicle's manufacturer. The wrong type of coolant and/or mixing the incorrect concentration of coolant and distilled water can also result in engine overheating. The best bet is to perform a complete flush and fill.
Bad Thermostat
A thermostat is a heat-sensitive valve that opens and closes in response to engine temperature. Heated engine coolant passes through to the radiator when the thermostat is in the open position. In the closed position, it prevents the flow of coolant to speed up the warming of a cold engine. When the thermostat gets stuck in the closed position, coolant stays in the engine and quickly becomes overheated, resulting in engine overheating.
Blocked Coolant Passageways
Rust, dirt and sediment can all block or greatly impede the flow of coolant through the cooling system. This can limit the system's ability to control engine temperature, which may result in higher operating temperatures and engine overheating. Once again, a flush and fill is recommended to remove debris.
Faulty Radiator
By passing through a series of tubes and fins, coolant temperature is reduced in the radiator. Leaks and clogging are some of the most common causes of radiator failure. Any disruption in the radiator's function can lead to elevated engine temperature and overheating.
Worn/Burst Hoses
A hose that contains visual cracks or holes, or has burst will result in leaks and disrupt the flow of engine coolant. This can result in overheating.
Bad Radiator Fan
A fan blows air across the radiator fins to assist in reducing the temperature of the coolant. A fan that wobbles, spins freely when the engine is off, or has broken shrouds will not be able to reduce the temperature to proper level, thus possibly resulting in engine overheating.
Loose or Broken Belt
A belt is often the driving link that turns the water pump at the correct speed for proper coolant flow through the cooling system. If a belt is loose or broken, it cannot maintain the proper speed, thus resulting in poor coolant flow and ultimately, engine overheating.
Faulty Water Pump
Known as the 'heart' of the cooling system, the water pump is responsible for pressurizing and propelling engine coolant through the cooling system. Any malfunction of the water pump, including eroded impeller vanes, seepage or wobble in the pump shaft, can prevent adequate coolant flow and result in engine overheating.

get it serviced

The first thing you need to do is check the cooling system coolant level. If it is low or empty, there is not sufficient coolant to cool the engine or to transfer through the heater core to supply the cabin with heat. Fill it up and check for leaks. Once leaks have been repaired, change the thermostat, engine oil and oil filter. If it is full, you may need to change the coolant due to its age, as well as the thermostat, engine oil and oil filter. The reason for the oil change is due to the thermal breakdown of the oil in overheating conditions. Also inspect the water pump to ensure it is being driven by the belt. You may also have air in the cooling system that is causing all your problems. Generally only happens when the cooling system is improperly filled. Make sure you add the correct mixture of coolant and water. Incorrect ratios will cause you similar problems.Coolant protects the cooling system and the water dissipates the heat.

I would start at my coolant hoses there is one on the rt side of the car check coolant overflow hose and the bottle check heater hoses as well or it might be that the pump isn't sealed or something could be left loose

The noise you hear is air bubbles in the core because it has no coolant in it = you do have a leak somewhere [ hose, radiator, waterpump, engine, etc.]. You may also be able to smell the coolant sometimes with a leak under the hood [ the fumes come in through the cowel vents through the heater]. Check the level in radiator when it's cool, if you have a leak the system won't draw coolant from the overflow bottle. A word of caution - these engines don't like to be overheated, they blow gaskets and crack cylinder heads. Should be repaired ASAP.

Could be a faulty temperature sensor, at wost it's going to be a bad head gasket or intake manifold. Sorry for the bad news and hope that it's just a faulty temp sensor.

Thank you for using fixya and check your engine oil to make sure there is no coolant mixing in with your engine oil. Coolant is corrosive to your engine's internal bearings.

since this vehicle has a thermal clutch fan I'd start there

are ALL the hoses getting hot?

• upper rad hose
• lower rad hose
• heater hoses

does the overheating reduce when you turn on the heat at full speed

What you have Discribed is 1 of 2 VERY SERIOUS Problems or 1 You hav BLOWN a HEAD Gasket -or- 2 A CRACKED CYLINDER HEAD This OIL In COOLANT Must be Determined FOR SURE To Be Able to CONCLUDE one of the other, The Overheating Problem it a ByProduct of the BOTH

possible causes of overheating are, dirty cooling system, clogged radiator, bad thermostat. Use only distilled water with a good quality coolant.

still overheating? have your top head checked - warped head, valves, valve seats, etc. You might need to have your engine's compression checked if it is still within specs.