GMC

Asked by Fernando Sep 13, 2018 at 12:58 PM about the 2003 GMC Sierra 2500HD Crew Cab LB HD

Question type: Maintenance & Repair

My truck keeps on dying. Alternator and battery are all good. I use the jumper
cables and the truck has a bit of trouble turning on then it starts just fine. Then
a turn the truck off and it dies again. What could cause the problem?

1 Answer
9,700

Mike answered 6 years ago

Next time you turn it off disconnect battery, later reconnect does it start? If yes you have a drain somewhere if no throw the battery away and buy a new one the more cca the better. cold cranking amps=cca

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