Have a 2008 HD Silverado 6 weeks old,when using the plow it drops amps so bad you can hardly lift the plow.Cant use the revolving lights or any thing else .took it to the dealer 8+ times,they put on new voltage reg,new computer etc,the mechanic called the GM factory rep and he said nothing wrong!HELP!
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alternator should work fine. I have no issues with my 07 GMT-900 2500
with plow and emergency lights....................
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