HELP I NE4ED TO LEAVE TO WORK AT 4 AND ITS ONE RIGHT NOW AND SOMETHIGN IS WRONG WTIH MY CAR..... i was driving to my parents house to go see my girlfreind when i noticed a really large rattling noice allthe sudden i pulled off hte road and looked at the engine ust so eee if i could tellwaht it was....no luck so i drove to my dads houe about 5 min from there so i coiuld get some tools to take of the valve covers so maybe i could check to see if one of the rockers was loose...it was so i tightened it down to the right specs and started the engine to see if it helped...it made the noice even louder then kept dieng after a second so i took the cover off again and the same rocker was loose again...so i took the push rod out to check it and it is fine straight as an arrow. what is the problem,? i need to get to work by 4 and it is one right now and i cant figure out what is happenign.... by the way the car is a 289 in a 66 mustang original motor as far as i know