Starts by hitting starter?
I have a 2002 Chevy 2500hd 6.0 gas engine. Just replaced the battery and alternator less than a week ago, after 2 days of them being replaced and the truck running great again the truck 1 night didn’t start. When I turned the key, the lights and radio and what not came on but when I crank to start it nothing happens. No cranks no grunts nothing, the lights shut off and that’s it. Now I tapped the starter while cranking the key last night and it started, today it started without tapping the starter or jumping it. Is this a bad soleniod or starter or something electrical? All my connections for the battery and alternator are clean and tight. Thanks