92 GMC Conversion Van please help!!!

Asked by Mar 11, 2009 at 08:32 AM about the 1992 GMC Vandura G25

Question type: Maintenance & Repair

There is something causing the battery to drain.  After 48 hours the battery will be dead but it can be recharged enough to drive.  If I unhook the battery it seems to solve the issue because it will still have juice left to restart the vehicle.

Yesterday, while I was driving, the van just shut off.  I noticed that the power antenna was on the fritz and kept going up and down.

Does anyone have any idea what this problem could be?  

3 Answers

75

If you have an aftermarket stereo that runs a battery connection while the car is off to maintain memory settings, or if you have an alarm running...they can drain an older battery pretty easily. I have an older 78 and my cd player kept draining my batt. I just unhooked the memory power wire.

2 of 2 people found this helpful.

behind the battery on the firewall is a 2 studded box. check to see if the wires attached to 1 of the post have melted. My van was doing the same thing and I swapped the box out and no problems. You will have to get this from a junk yard as the OEM does not make these anymore. You should be able to get it off any vehicle as long as it is a GMC. Hope this helps you.

55

My van has been doing the same thing as with the electric antenna I just unhooked the wires, and as far as the drainage on the battery I think mine was discharging thru the alternator diode.....so far so good you can hook a meter between the battery hot side and the cable hot side and see what kind of drainage you are registering

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