Question about 2002 Chevrolet Avalanche

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I am on my 3rd battery went to 2 shops no one can find out whats wrong i have noticed a few times the when i hit a bump all the gauges would flicker bad and it killed the engine once but got it restarted only to have the battery die 2 days later getting rather upset the put a meter on it and cant see any significant drain

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Check battery terminals at starter, could ground on bumps but then show nothing on tests because it frees itself. check computer hookup to brain. Flipping guages usually mean ground problem but would not drain battery. If you have rear window defroster check that because it works on a timer and could be off during tests, then ground on bumps.

Posted on Apr 22, 2009

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At a guess i would have a look at the main earth cable from batt to body work this may explain why all your gauges went off over a bump could just need tightining up or could have some corrosion that is giving it a bad earth/

have you had the power output from the alternater checked it may be working but if its not putting out the right power then it wont charge the battery for you

Posted on Apr 22, 2009

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