ok i replaced the degas bottle old one was leaking coolant all the way around and i installed a intake elbow intercooler pipe air intake and coolant filter and now i have no heat and leak coolant and coolant rushed back into the degas bottle when i relive the pressure in it please help

 

Have you thought about pressure testing your coolant system .
Also you possibly could have an air lock from when you put your degas bottle and filter on .

 

How old is your thermostat?