Well,going from what you said someone has told you and,it sound's like it could be your starter silinoid.

You could pull off the old one and take it down to, AutoZone and have them test it for you for free.It's really not that hard to do.

just,Disconnect the battery,jack the car up and support it,locate the starter sould be behind the engine(don't know that much about 93's) it will be on the engine where the transmission bolt's to the engine,should be about 3 bolt's holding it on unbolt them.disconnect the wire's on the starter,You may need to pull silghtly on the starter to get it out.

Also have you checked your battery to make sure thats not the problem?