i hear water swirl in my dash board when i take off and when i reverse, i heard its the water pump pushing water through the heater core, but how can i fix it.?
The issue is not just that the water pump is pumping air through the system, it is that there is an issue with air being in there in the first place. It gets there one of two ways. First, your cooling system is losing water somewhere and air is getting drawn in through the coolant overflow bottle or through a leak in the hoses, the radiator, or the radiator cap. Second it is getting in through a compression leak. Compression leaks are caused by blown head gaskets or cracked or corroded cylinder heads or engine blocks. You need to determine which it is, because you need to address the issues differently. Fill the cooling system with coolant, purge the air out of it, and connect a pressure gauge to the radiator where the cap normally goes. Start the engine. If the gauge fluctuates up and down, you have a compression leak caused by a blown head gasket or crack in the block or head. If the gauge doesn't fluctuate, you have a leak in the cooling system that could be in any one of many places, such as hoses, caps, freeze plugs, the radiator itself, the heater core, or one of many gaskets. If it turns out to be a compression leak, you need to pull off the heads and replace the gaskets, and if there is any corrosion or cracks, you need to either replace or repair the heads. Broken head bolts can also allow compression leaks, so if you do remove the heads, you need to replace the bolts and torque them to the correct specs. If your engine oil looks frothy, like latte, this is another sign that you have a blown head gasket. It means coolant is getting into the engine oil. If it is a leak in the cooling system that is not related to the head gasket, you need to find it and seal it. There is no other way to find out exactly what is allowing air into your cooling system other than these two methods. The sound you hear when water is flowing through your heater core is actually the air gurgling through. No air, no sound.
Sounds like you have air in your engine cooling system. Newer cars are notorious for trapping air pockets in the engine when the coolant is changed. Take the car to an auto repair shop and have them bleed the air out of the system.
Have radiator flush done. Low or air in system
