-Battery is full...? If so check for corosion battery cable.
And make sure good connector (Tight)
-If all are good and just Click but can't turn. >>> Need new starter.
Mai
Testimonial: "Your advice was great as a starting point. This combined With the advice to allow the computer to reset or to re-acquire A pass lock key helped! Thanks to all!"
SOURCE: chevy tahoe won't turnover, power
Next time it won't start turn headlights on and see if they dim when you turn key to start, if they dim its most likely starter, if they don't dim possible starter switch, Have you tried to start it in neutral position? Try that, if it starts in neutral than its park neutral switch, if not could be starter switch, Just make sure you chk. all fuses and any relays associated with ignition first.
SOURCE: 2003 Trailblazer- no power after key stuck in ignition
Sounds like an antitheft problem I would start with the antitheft system. Usually when you only have one key all keys have to be programmed together even the original. When you have more than one it is easy to program additional keys.
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Battery being checked at garage for charge & voltage. Will update with results.Thank You!!!
Battery checked out ok with voltage & cranking amps at near new levels....what next? Please help!!! Thank you!!!
Battery removed & left out for one hour. All contacts clean & re-installed. Computer reset. Vehicle started!!! Thanks for the helpful posts!!!
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