View Full Version : ASTRO 97 MODEL- ALTERNATOR TESTING


alka
07-30-2008, 03:40 PM
:)How to test the refurbished Alternator installed shall be giving enough power to charge battery & run the system?
Does alternator volatge goes little low when A/C is turned ON?
I want to ensure that this rebuilt part shall be O for extreme winter conditions.

Thanks in advance.

Alka

shawnvw
07-30-2008, 09:28 PM
An easy way to tell if your alternator is up to snuff, is to start the vehicle, and turn on all electrical loads possible, headlights(high beams), 4 ways, wipers, rear defrost, radio, a\c, blower motor to high, etc. and using a voltmeter, watch the voltage. If it drops below 12.5volts, you alternator may be suspect