I have an '87 FC with 105,000 miles. Has been running perfect for the last 8,000 miles till now. After repairing the oil metering pump I put everything back together (this is my first car and I'm inexperianced so far) and suddenly the ADD COOLANT light was going off with the buzzer and the engine started to cut out at anywhere between 3-5k rpm. Realized that the coolant reserve wasn't filled and the add coolant light has been gone for two days so I think that's good. The engine keeps dying while driving under normal conditions. Auto-x in 4 days, HELP