I have the light out right now and the trunk is up as I'm doing work in there. After a few days I noticed the battery was dead, I don't think anything was left on.
------------------ 86 SE Convertible 3800sc 4t65e HD.
Put the amp meter in series with the battery positive (or negative) and start pulling fuses. You will find where the problem is. Even a filter capacitor can go bad and draw current. A bad diode in the alternator can also cause a drain. Larry
[This message has been edited by trotterlg (edited 09-24-2013).]
Put the amp meter in series with the battery positive (or negative) and start pulling fuses. You will find where the problem is. Even a filter capacitor can go bad and draw current. A bad diode in the alternator can also cause a drain. Larry
Thats going to be my next move.
------------------ 86 SE Convertible 3800sc 4t65e HD.
If you have the hood up, not latched, I believe that will drain the battery whether there is a bulb or not.
Not on my Fieros. I have left the decklid up for over a week in the garage with no bulb in it, no prob starting. Maybe some corrosion is in there allowing juice to pass thru if that is the case.
If you have the hood up, not latched, I believe that will drain the battery whether there is a bulb or not.
Not possible. That's like having a lamp in your house with no bulb in it but the light switch is in the ON position, do you think there is electricity flowing to complete the circuit? It's not happening.
Not possible. That's like having a lamp in your house with no bulb in it but the light switch is in the ON position, do you think there is electricity flowing to complete the circuit? It's not happening.
Well....on my 87 GT, two things happen when my rear deck lid is open. Trunk light comes on...and door ajar light comes on. If the bulb out of the trunk light then no power will draw from the trunk light circuit...however if there is something flaky going on with the door ajar light on the dash I suppose that could cause a drain anyway
Get a Digital Multi Meter (DMM) and check the current draw. Disconnect the negative cable from the battery, put the DMM on amps setting, connect one lead of the DMM to the neg battery terminal and the other to the loose end of the negative cable. Make sure the car is OFF and the doors are closed to prevent a draw from the courtesy lamps. Read the DMM, it should be about 50 mA. if it's higher than that start disconnecting fuses and see if the amperage drops.
The cause of my power drain was worn headlight motors.Causeing a massive power drain.Hope it didn't kill the battery. Try disconnecting the single power wire to the right and left headlight motor and see if it retains a charge. If that doesnt work,check your charge gauge on the dash,way low or way high would indicate a bad alternator.
[This message has been edited by James Bond 007 (edited 09-24-2013).]