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Q: I have an electrical problem. When u turn the key on the battery light goes out. on 1999 Chevrolet Silverado 1500

We replaced the battery first then alternator n starter. Still does the same thing. Amp meter on dash don't show more than 13. Alternator is charging. Where are the ground straps located on a 99 silverado 1500 4x4 LT. 5.3 L. I'm stumped. Unstump me please. Thanks
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Thanks for responding. The lights would dim truck would almost stall out the brake light comes on n goes off for no reason. I checked the ground wires seem to be OK. Any more suggestions. I'll wait for ur suggestions before I let it conquer me.
Test the alternator using a volt meter at the battery terminals while engine is running .. Should be about 14 volts. (DC)
Thanks pushrod. Volt meter showed 13 v but fluctuated that made me think ground. So I cleaned all 7 grounds 2 which were a little corroded no more problems, even the windows go up faster. I hate electrical problems. Thanks.
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