I have a 1998 Chevy Silverado ext cab K1500 with the 5.7 vortec engine. Just recently the winshield wipers stopped working. In order to get them to work, I have to turn them on and then give the wiper a yank and they will start working. Does this sound like a wiper motor issue? The reason I figured out to yank on them to get them to work was I could hear the motor wining. Yestarday, I turned on my lights and the dash lights did not come on. I played around with the dimmer and it had no effect. Could this be a fuse? It has not happenned recently, but I have been driving down the road with the A/C on and then all of a sudden it turns off and then a second or 2 later it turns back on.