A friend has a 93 caravan that's been well maintained. She just had her vehicle in the shop to find out when the guage dials swing back and forth,at times. They couldn't pin point the trouble and it continues to do this. The mechanic is known to be very reliable. The owner has had work done there before.
Any idea what may cause this. Someone told them it could be the alternator. If it is the alternator, when they expect the cost to be, to replace it? The are near Sarasota,FL
The car has 65K miles on it.