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pulling codes, tach went crazy batt. dead

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Old 07-31-2008, 07:05 PM
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Car: 91 formula
Engine: 350 tpi
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pulling codes, tach went crazy batt. dead

the car ran good ,but the ses would come on after about 5 minutes of driving ,car still ran fine. so i decided to pull the codes but when i tried the code 12 flashed 3 times ,then it flashed and all the sudden the tach went crazy and so did the ses light when it finally quit the new battery was dead. ever heard of this?
Old 08-01-2008, 01:42 AM
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Car: 89 Firebird
Engine: 2.8L out of a 89 camaro
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Re: pulling codes, tach went crazy batt. dead

sounds like u have an altenator problem if u have a dead battery that fast..
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