my alternator was only putting out 11.5 -12.0V so things would intermitently work. Headlights would some times go down, car would not start sometimes, all sorts of goofy things. At around 12.0 volts it seemed like things just would work like they were suppose to. I took my alternator off and had it tested at Autozone and it confimed what I saw with my meters.
Speedy
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1983 944 guards red with 16" Fuchs, Host of Wisconsin area timing/ balance shaft belt tensioning party
1987 944S Purchased from Legion. Corvette LT-1 V-8 conversion with Mega Squirt II
Check on progress --->
www.porschehybrids.com/gallery/speedracing944
Favorite Road =
www.tailofthedragon.com 318 turns in 11 miles (11 min 20 sec best run)