After a ton of work to fix my 94 SC's overheating problem (replaced timing cover(It was cracked), water pump, and super-stat) I am getting this weird readout from my gauge. When I am driving it will work its way up to normal temp then drop like a rock back to left all the way to the blue. Then from time to time it will come back up to normal just to drop again. Sometimes it will stay in the blue for four or five minutes. I found a slightly melted wire by the thermostat....is the wire shot or is my SC just running ice cold?