1982 300TD

So I thought my battery was bad. Bought a new one at autozone, BAM! Didn't fix the problem.

I pulled the ashtray out and hooked my multimeter to the white plug there to monitor voltage during driving. With my old alternator, it never went above 11.5. So, I tracked down the Saab 115 amp alternator at Autozone, and bought it. I then proceed to spend the next 4 hours in their parking lot trying to get the old one out, and the new one in. The belts aren't quite tight enough, but it's working for sure. I highly recommend the alternator. It fits perfectly!

I drove it around for about 20 mins, and the battery kept discharging. By this time it's about 1am so I found a 24 Autozone and got them to put the battery tester on it. The guy there determines that it's not the battery, but there seems to be a short somewhere that's causing the alternator to not keep the system charged at idle.

SO, the big question; where do I start? I guess there's a short somewhere, but where should I begin the search? Ever heard of this issue before?

Thanks...
-Chris

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'90 300SE --- 173k miles --- (Odometer just stopped working!)

'85 Cali 300D --- 193500 miles --- (Second one) Sold Nov '10

'82 300TDT --- 236,xxx miles --- (My first one) Sold July '09