Sometimes they get stuck on there pretty good,you should be able to wiggle it back and forth to get it off.Sometimes you have to put a couple pry bars behind it and wiggle.Be careful,you don't want to bend the cover.Also on the 94,you can unbolt the pulley from the hub,that with give tou a little more room,should have 3 10mm bolts that hold that on.I have had to use a slide hammer to get them off