2003 Chrysler PT Cruiser, 2.4L N/A, Auto, 200,000 miles
New battery 20,000 miles ago
New alternator 20,000 miles ago with OEM pulley.
Here’s where I’m stumped. At idle, I get 13 volts. At 2,000-2,500 RPM it reads 11.8 volts. When I slow to a stop the voltage goes back up to 13. There is only a 0.10 voltage difference under full accessory load.
Apparently there is no external voltage regulator on this car. I think regulation is done via the PCM.
Here is the video of the meter. http://youtu.be/NREEdETRLTs