1500 Z71 GMC 5.7 engine my lights come on in my truck but when I turn the ignition to start my engine won't turn motor over at all
First would be to check the the battery to see if it is fully charged. Check the battery connections, clean the battery connections and inspect the battery cables for corrosion. If all this is good, then you would need to check to see if power is getting to the small wire on the starter solenoid when the key is turned to the start position. If not then it could be the ignition switch, or the neutral safety switch. If power is getting to the small wire on the starter solenoid, then there is a starter problem, and the starter would need to be checked.
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