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03 trail blazer won't start turn key nothing let set over night will start then shut off and won't start again just put new battery in still doing it some times it will run for a week then do it again
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Some times replacing the battery shuts down the computer and you need to bring it up again. Most times turning the key on and off 2 to 3 times without starting the car will do it. If not take it to auto parts and they can tell you what you need to do. It's FREE Good luck.
Could be the brake switch or the shift lock solenoid. You may be able to turn the key lock to the unlock position, move the shifter out of park, then start the engine in neutral. The shifter and the shift lock solenoid would need to be inspected.
are the inside of the battery terms dirty,corroided? do you know if motor alt is charging batt? how long did it run when you put new batt in? if it lasted about two days, its proubly not charging, also make sure nothing is being left on draining batt down, to check that, leave batt nuhooked pos side over night.
CHECK YOUR BATTERY CABLE CONNECTIONS SOUNDS LIKE ONE IS NOT MAKING A GOOD CONNECTION. TRY TO CLEAN THEM AND REINSTALL. CHECK FOR SHORTING OUT CABLE BETWEEN POSITIVE POST AND STARTER.
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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