David,the reostrat is in the instrument cluster.(like where speedo,rpm guages are).Looking at the instument cluster in the lower left you have a knob wich is the reostat.To replace it you have to remove the instrument cluster,abd the seering wheel.When you remove the steering wheel you also have to remove the Air Bag..Be very careful on doing this.If you have never done it before best thing is to remove the negative cable to the battery..Now the instrument cluster is just pushed in with a rubber band around the clust.Some times it is tricky getting it out.Best thing to use in a hook .Push it in and twist it so it catches something and pull gently.do this in several spots,untill u have it out.Now disconect all the cables and remove clucter.Now turn the cluster upside down so u see the back of it.now the reostat will be on the right side.It is a white ceramic housinmg held in with one or screw.remove it and than remove the reostat.Either just replace it with a new one,or i have just cleaned them sometimes with some brake cleaner while turning the reostad.Unless the springs are fallen apart than dont waist your time to fix it,Just replace it then...instalation are in reverse order.you may need to push in your radio code than ,cause of removal of the battery power.....WHAT ever you do ,do not remove the AIR BAG with the ignition on...and if you do not want to remove the battery cable,let me know and i will guide you throu it that way too