[autojack]

The speedo in my 3.2 recently stopped working. Leading up to this, there were a few occasions while driving when the needle would go crazy for a couple of seconds, and then go back to normal. I sent the speedo out for repair, and the guy found several components on the board fried. This is making me suspect that my voltage regulator is going bad. I don't want to do anything more until I get that resolved. I tested the charging voltage at the battery at 4000 rpm and it looked normal, 14v or so. But the speedo needle issue seems to suggest that the problem is intermittent and could keep happening.

From the records I have, I know that a previous owner replaced the alternator with a new Valeo one in 2012. Since then the car has only had 18k miles put on it. To me it seems unlikely that the alternator itself could have gone bad in that time. Does it make sense to try just replacing the voltage regulator first?