filling coolant on 1992 Buick Regal

can you give me the instructions for filling my regal. I seen 2 vents in the system, 1 on the therm housing and another by the heater core line. not sure if thye should be open/closed while filling. thanks.

Asked by for the 1992 Buick Regal
1 answer
The best thing to do is to go here and get the factory instructions, because it is some what hard to explain, with out pictures.