Where do i add coolant to? In the coolant reservoir? Or in the radiator? And how do i know when the system is full?

 

Add it to the radiator while the car is running,fill it to the top.then once it full you can add to the overflow tank.

 

Ok thanks how much do i put in the overflow tank?

 

With the car running, if the radiator is low, add there first. Then watch it "Burp" as it works the air bubbles out of the system. Once it stops "burping", the air bubbles will bubble out, coolant will spill a little, but then the level in the radiator drops as the air escapes.

Once that is done, add coolant into the overflow radiator until it's about half full.

 

Best method is to burp the system manually, heater set to high, engine running. Start with the engine cold, the radiator fill cap off, and the coolant topped off in both the overflow bottle to the "cold" line. Start the engine as Ozz said and watch it remove air bubbles. To help it along, put your hand over the fill port and alternate squeezing the upper and lower radiator hoses 5-10 times each as it runs. Beware that as the system warms up the coolant with get hot (typically 5-10 minutes). Keep a rag handy, and stop if the coolant gets too warm. You should be able to burp any air out of the system this way in a couple of minutes. Add any needed coolant to top it back off, and put the cap back on to close up the system.

If you don't burp the system, you run the risk of the system either not pressurizing properly (which will overheat the engine), or worse develop an air pocket. Either is bad for two reasons;
1. Pressurizing water raises the boiling point. If the system can't pressurize, then it will boil at atmospheric pressure (212* F). This means steam will form, generally where any air pockets are located.
2. Steam is supersaturated with heat, and has no cooling properties. Worse yet, the water pump cannot circulate steam. Therefore it is vital to keep steam from forming within the system. Steam pockets, once formed, become trapped and can rapidly lead to system failure or damage, especially with aluminum cylinder heads.

 

Overflow is marked,"FULL HOT","FULL COLD"