Draining and Filling
Your gauge will look like this...
*The bottom blue thing screws into the coolant reservoir.
*Connect a line from your premixed coolant jug to the side without the long tube.
*On the side with the long tube you leave that tube open to atmosphere and connect shop air to the fitting.
1. Drain all the coolant from the vehicle.
2. Connect any disconnected hoses and screw in drain plugs.
3. Mix your coolant and distilled water into one large jug(enough for the whole system, if you suck air you will need to start all over).
4. Connect the premix jug to the valve/gauge
5. Screw the bottom of the valve/gauge to the coolant reservoir.
6. Make sure both valves are closed...
7. Connect shop air. Air should be blowing out the open tube to atmosphere.
8. Quickly open then close the valve on the premix side to fill the line to prevent air when filling.
9. Open the valve on the side with shop air and tube to atmosphere. (jug=closed shopair=open) You are now pulling a vacuum on your entire system. You should be able to see all the rubber lines sucked in on the system and the gauge will start to move. If this does not happen you have an air leak.
10. Once the gauge is in the green, close both valves. Disconnect the shop air and let it sit for a few minutes, the gauge should stay where it is or you have a leak.
You now have a full vacuum on the system and are ready to fill.
11. Fully open the valve on the coolant jug side. (jug=open shopair=closed) The gauge will drop fast and then slow once the system is filling.
12. Sit and wait for the system to fill. Watch your level of coolant in your premix jug. If you are low you can close both valves and add more. Once the level in the jug stays the same the system is full.
13. Close both valves and remove the gauge/valve from the vehicle.
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THIS IS ALL PERSONAL PREFERENCE NOW
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14. Jack up the back end(mid/rear engine) of the car slightly but enough so the car can still get oil. I do this since you want the open to be the highest point to let out any air. Leave the cap off or put on cap and open valve.
15. Start up vehicle and turn heat on HIGH w/ front defrost.
16. Sit and wait. Make sure you have heat coming out of your vents. Watch the temp gauge iirc the t-stat is a 180*. Once it reached 180 wait a few more minutes to see. Coolant will be spilling out the rear from overflow.
17. Put the cap on/close the vent and test drive the vehicle.
18. Remove or add coolant to set the correct level.
Disclaimer: All repairs done to vehicles should be performed by trained professionals in a proper workspace. Dispose of all waste properly. I am in no way to be held responsible if you screw something up. I am no way held responsible if i wrote something that screwed you up. I am here to help and will answer all questions to the best of my knowledge.