Hey guys, I'm getting that annoying 3 second engine rattle/knocking when starting the '94 Tbird. I only use Motorcraft oil filters and good quality dino oil. It doesn't happen all the time, but when it does, it sounds bad. I checked the whole front of the motor for anything loose and its all tight. Motor has about 80k on it. Also, when I start the car for the first time after changing the oil, it does a longer version of this rattle but not as loud. Oil pressure is always normal and the car runs great. Is the oil pump having problems or whats going on? Thanks for you input.