van discharges when I am idling

2001 CHEVROLET EXPRESS
170,000 MILES
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MITZTARBUTTON
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gauage stays at center mark when I am idling it shows discharging. I have put new starter, alternator, battery and serpentine belt. I need help
Jan 16, 2012 at 5:41 PM
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SATURNTECH9
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Do you have a multimeter to do some testing?
Jan 16, 2012 at 5:45 PM
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FIXITMR
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stop by auto chain store and have them check actual readings at battery. they do it for free.your gauge may be wrong.
Jan 16, 2012 at 5:51 PM
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MITZTARBUTTON
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I have checked battery Reads 12.6 alternator reading is 14.3
Jan 16, 2012 at 6:37 PM
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SATURNTECH9
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If your gauge reads discharging and its really reading 14.3 volts then the gauge is wrong.
Jan 16, 2012 at 6:58 PM
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FIXITMR
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did you test alt on or of vehicle?
Jan 17, 2012 at 12:39 AM
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MITZTARBUTTON
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Thanks for all the answers. I believe it is a bad gauge.

Jan 17, 2012 at 12:47 PM
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SATURNTECH9
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Your welcome thats what were here for.
Jan 17, 2012 at 6:20 PM
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FIXITMR
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you thru me when you said battery was 12.6 since i assumed you got that reading while car was running and checking voltage at battery.
Jan 18, 2012 at 2:21 AM