Alternator probs

["Rob Winchell" <rbw@avs.com>]

Q -

I've got a problem with my alternator.

Symptoms:
1) After starting the car, the voltmeter only reads 12V. Once the RPM goes
above 2k, it jumps up to normal range.
2) Sometimes (let's say 20% of the time) when I start the car the battery
and brake light are on dimly, then go out once I drive a bit.

So, I had read that symptom 1 could be a bad voltage regulator, so I
replaced it. Same problem. Or a loose wire. Didn't find any. Anyone have any
other guesses? Battery seems to be fine.

Rob Winchell
91 200Q
87 4kCS