wont charge!

[CSRadel]

i have a 6.9 and it wont charge. i took it to advanced and got an alternator and went through 3 in the past week. they put some kinda tester on my truck and said there was a problem with my truck drawing current. what could this be? what could be going on? all this electrical is not my kind. any help would be appreciated.

[cdnsarguy]

Check the white/yellow wire on the alt to regulator for continuity........ it activates the alt to charge.

Also check the fusible link........

[chuckster57]

I know yours is not a powerstroke but here is the procedure to test for current draw. (copied from another thread)

I do it with the negative leads off and use test light between the negative cable and the negative post on battery.

This is the procedure I follow:
If no other electrical accessory are causing the battery to drain over night a manual draw check of the electrical system will need to be performed. What this means is you will be checking the electrical draw the battery has on it when the car is locked up, with the key in the "off" position". First open the hood and disable the under hood illumination light, if equipped. Next, with the key off and the doors locked wait 15 minutes, then disconnect the battery cable on the negative side. (The 15 minute wait allows the computers to go into "sleep mode" and shuts down all electrical). Attach a test light between the negative battery cable end and the negative battery terminal. The test light should illuminate dimly or not at all. If the test light is on brightly there is a strong electrical draw in the system. To locate this electrical draw start removing fuses one at a time. When the test light goes out the circuit in question has been located.

Note added:
when disconnecting the battery cables, the test light (or better, a good quality ammeter) should be installed across the first cable and the battery post, then the second battery disconnected. If you totally disconnect and reconnect, the GEM and other electronic modules "wake up" and draw more current. In normal "sleep mode" the total amp draw should be less than 50 milliamps.

A fairly common battery drain point is back thru the alternator if a diode goes bad. That usually kills the batteries in short order, but there may be a lower level leakage. Be sure to include disconnecting the alternator lead as one of the steps in finding the drain.

[CSRadel]

chuckster 57, i did like you said and i got nothin, the light didnt even flicker. what should be my next step?

[Joe Mc]

Next step would be to have them test the batteries, a bad cell would kill both overnight. Also check the small ground wire that goes to the voltage regulator, it should be tight under one of the two bolts that hold the regulator to the fender-well.