The other day I found one of those 1A 250V fuses on the floor mat of the driver's side of my Jeep.
After finding the fuse I noticed that my speedometer was acting sluggish. The speedo wouldn't start to rise when driving until I was at about 15 mph. It also didn't rise and fall with the acceleration/deceleration of the vehicle as it should. It still fell as the vehicle slowed down but not with the accuracy and responsiveness that it should.
Any ideas guys??