park my good running 2004 4.8v8 silverado 1500 went for one week when I got back it crank but wont start
Was the battery still good or did you have to recharge it? If it was low it may have turned on the security system, might be worth a try running the shut down procedure listed in the owners manual. Other things could be rodent damage to some of the wiring harness, failed crank and or cam sensor, a total loss of factory presets in the computer systems, this usually happens if the battery is totally removed without using the special tool for saving the presets. If this happens the only place that can restore it is the dealer.
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