Charging Issue

[l1driver]

I havea 00 Silverado Z71 witha 4.8 and Auto Trans. Here lately if the truck sits for more than a day with out being cranked the battery is dead. Put a new battery in last July. When i put a meter on it the Alt. shows 14 volts out put. once it is cranked it will start everytime with no problem. Any Thoughts?

[j cAT]

Originally Posted by l1driver

I havea 00 Silverado Z71 witha 4.8 and Auto Trans. Here lately if the truck sits for more than a day with out being cranked the battery is dead. Put a new battery in last July. When i put a meter on it the Alt. shows 14 volts out put. once it is cranked it will start everytime with no problem. Any Thoughts?

there is no one answer. you have to place a amp meter in line with the battery ground connection ,,,,the current should be less than 1/4 amp then remove fuses one at a time to find whats sucking the power down..

any after market add ons are the first to be disconnected because these are the first step in fixing this


you have a drain problem not a charge problem.