O.K. guys this is in my other Monte Carlo, it's a '98 Monte Carlo LS with a 3.1L engine. The Volt light came on the other day. But if I keep the rpms above 3000 it goes out. Alternator is about 1 yr old. Battery is about 3-4 yrs old. Swapped the battery with the one out of my '87 SS. Same thing. So is the Alternator bad again, or is it a voltage regulator or something.