My 01 2500hd Silverado won't turn over. I jumped it for two days and it cranked. Then nothing, battery is good, not sure if it's alternator or starter?
Are you sure the battery is good? If you had to jump start it, that would tell me it isn't. Did you have it load tested at your local auto parts store. Did you check the voltage? What is it?
You said battery is good, if that's the case try the starter relay and fuse
Check taht the terminals connected?
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