eastsideauto
Full Access Member
I have had a horrible battery drain prob lately. I can go to start the truck in the morn with two freshly charged batteries and the wait to start light will come on for like 7 seconds, then it goes out and it does the afterglow clickity click thing that it has always done, but when I actually try to start the truck the batteries are so dead it will not turn over the engine. I can recharge the batteries, disable the glow plugs, give it a shot of ether and it will start right up. The controller is less than 6 months old, the batteries are ~9 months old and I have checked for other things draining the batteries, nothing. It will start fine warm without ether and cold with, as long as I disable the gp's. What would cause them to drain the batteries that quick?