1997 chevy astro charging system

1997 CHEVROLET ASTRO
187,000 MILES • 6 CYL • 2WD • AUTOMATIC
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TUBBS74
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i have a 1997 chevy astro i put in a new starter battery and altenator but when i start the van the volt meter only goes to nine volts . took the battery out and had it tested it's fine the altenator too. what could be my problem
May 4, 2011 at 8:01 PM
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CARADIODOC
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  • ASE Certified Mechanic
Measure the voltage on the small wire plugged into the side of the generator, near the back. Do that with the ignition switch turned on. Take a reading on the wire with it plugged in and again with it unplugged.
May 4, 2011 at 8:16 PM
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