2003 Chevy Silverado ELECTRICAL PROBLEM

2003 CHEVROLET SILVERADO
86,000 MILES • V8 • 2WD • MANUAL
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RONALD WOOD
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I'VE REPLACED MY BATTERY, HAD THE ALTERNATOR CHECKED, REPLACED THE BELT. BUT THE VOLTAGE DROPS WHEN THE TRUCK IS IDELING, THEN VOLTAGE GOES BACK UP. THIS PROBLEM JUST STARTED.
Feb 5, 2008 at 7:02 PM
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BMRFIXIT
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[quote:c0f44dbe48="RONALD WOOD"]Electrical problem
2003 Chevy Silverado V8 Two Wheel Drive Manual 86000 miles
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I'VE REPLACED MY BATTERY, HAD THE ALTERNATOR CHECKED, REPLACED THE BELT. BUT THE VOLTAGE DROPS WHEN THE TRUCK IS IDELING, THEN VOLTAGE GOES BACK UP. THIS PROBLEM JUST STARTED.[/quote:c0f44dbe48]

check wiring
Check the alternator
make sure you test diode in it
replace alternator
Feb 5, 2008 at 7:25 PM