I have a slightly modified 04 'S. I have a 2% ATI damper pulley, 15% WMW Underdrive Pulley, Screamin Demon Coil pack, WMW Spark wires, and Cooler Spark plugs. I just installed my 15% few days ago and I am running a 4060535 belt size now. Everything seemed fine until yesterday.

I was driving home from work at night. The car started up fine and I was on my way. About 3 min in i lost power steering. Then my abs and eml lights came on. Then a few minutes later my dash lights went out and last, but not least head lights. (I still got home a ok)

The battery is brand spanking new: I mean its just now hitting two months. The car has 115,000 miles on it and i take good care of it. Just flushed all of its fluids about 3 months back and replaced all filters replaced and valve cover gasket. Along with a new ground strap because I noticed a little more play then i liked. Dees anyone know what could be causing this?

Is it that the alternator is going bad now and not able to keep up with the parasitic loss it is now receiving form the pulley?

 

any update to this? seems like what my GFs R50 is going through but she's completely stock

 

check that your terminals are tight and corrosion free.

A volt gauge will quickly tell you if the alternator is charging; a working alternator will output between 13.5 and 14 volts. connecting a volt meter to the batter while the engine is running will give you your answer.