What does it mean when it says battery not charging on a 1998 north star Cadillac Eldorado etc?

Do It Yourself GM Security bypass

if you have the north star motor it on drivers side tward front grill, you will find a belt cover you need to remove an you'll need a special tool most auto parts stores will rent it to you for a small fee ,it likes a large socket ,if you have the new one you'll see how it fits in socket, using a rachet with socket place over water pump and turn a 1/2 turn to left and it's out ,replace in reverse ,take care not to disturb new o ring seal ,and don't use silicone to seal it , BUT general motors strongly suggest you do use some type of motor sealant , now for the bad news =these motors are very bad with over heating issues that have plaged the north star for years , if you drain antifreeze make sure you use air purge valves to remove any air from motor (purge valve looks like a brake bleeder screw ) or it will continue to over heat, im guessing that's why your doing this , if over heating is a problem take the time to go over all aspects of the cooling system =belts, flushing motor, cooling fans working correctly ,coolant filled, well I REALLhope this helps you ,good luck with it .
Woody

follow the upper radiator hose to motor next to waterpump ,im guessing you have the north star motor.

Then it must be removed and rebuilt or a rebuilt unit exchanged in for the old worn out one.

First step have the battery tested, a bad cell can cause a internal drain and kill the battery, if the batt is ok then check for interior lights like visors that stay on or interior light that come on by themselves at night due to defective door switches.

okay, let me try to help you, its a 1989 eldorado 4.5 engine. here you are a diagram of the belt routing, hope this helps . good day.

If the cel is flashing, it indicates a misfire, which can quickly ruin your cat converter. If you wish to repair it yourself, have a qualified repair facility diagnose it, tell them up front of your intentions, and pay them for their time. Good luck!

Hmmmmmmmmmmmmmm. I guess you find and push the "fix oil leak" button or take it to a mechanic so he can put it up on a rack, find the leak, and give you a price to fix it.

I need a diagram of how to replace a serpentine belt on a 1998 Calilic 4.61 north star engine

To gain access you have to remove the ignition coil pack. There are only 4 10mm bolts holding it on. Also remove the cross over to have more room.