94 Escort LX Question

Recently replaced timing belt on a 1994 Escort LX Sedan. Since replacing, a strange noise now comes from under the timing belt cover. Sounds like something is possibly loose or rattling underneath, can feel the vibrating when cover is touched. Car also vibrates occationally on the highway at 60+mph since the belt was replaced. The car only has 52.000 miles on it. If anyone has any suggestions, please let me know. Thanks.

afraid you will have to dismantle and inspect the cam belt for tightness,also check with belt off the idler and tensioner pulleys for roughness.make sure crank pulley tight.