When I bought my 87, I made sure it was given a full tuneup. Last year, I was driving thru Indiana on a hot day and my coolant reservoir sprung a leak. It had cracked. I bought a new one, changed it out and headed home. That was when the troubles began. I could not stop it from overheating. I found out the car had to be bled, which was done. No problems for a year. Now, the same thing is happening. I replaced the reservoir because, on a hot day, it had heated to the point of blowing the cap off, the hold down strap was off, and the tank was barely hanging there. The cap was stripped. I told the mechanic to bleed the system. I don't think he did. I am losing fluid when I drive. I went online to search "bleeding the system" and came up with how to bleed the system the easy way. It states "By removing this Coolant Temperature Sending Unit, located at the rear of your head on driver's side and parking with the nose downhill you can bleed trapped air from the coolant system." This, I was told, is a pain in the butt and dangerous. I could do it the easy way, tho, by adding a 'Prestone Flush & Fill' kit instead. It will include a heater hose connector 'tee' which you can insert into the uppermost heater hose. (I think I would buy a brass fitting tho over plastic if I can find one). Would this work on the closed cooling system? I've never used one before and not sure how to do it once it is installed. Any ideas?