fc3sturboII

i have a 88 tII and for some reason i charge my battery and overnite it dies. there has to be something that stays on over night or something. i was seeing if anybody else has had the same problem before.

skunks

what you gotta do is check your ghost current draw, actually your probally shorting out some place.

in anycase, to check this, set your multimeter to current and hook it between either of your battery terminals it goes terminal to multimeter to battery cable. dont have it on ohms or you will short out your multimeter very quickly. inanycase, you just check how much current is being drawn, it should be about .25 amps or so, if its more, then your shorting someplace. start pulling all the fuses one by one and then when the current dropps, you have found your line which is shorting. after you have found your line, trace the entire line and see if the wire has rubbed thru any place on the body.

if none of the fuses are shorting out, then its not something fused and then you gotta start manually taking off wires off the control box to figure out what is shorting. it might be an amp you hooked up for your sub (stereo system) which is not on the fuse pannel or something else like that.

good luck

P.S. if its not anything on the car, its the battery

SureShot

Maybe start by getting the battery checked.

Digi7ech

iTrader: (1)

Yeah once batteries die they don't like being recharged for use. Some times they won't hold the charge.

Other than what's above maybe check your alternator. Maybe it's dead and killed your batt.

silverrotor

iTrader: (1)

Test with a Tail Light Bulb in between the positive of the Battery and the Cable. If it lights you know you have a decent current drain, if not than test with your DMM in the Amp Mode (do this to keep from popping the DMM fuse...cheap DMM can only handle 10 amps or less).

If you are sure you have a current draw, then find the circuit by pulling Fuses one at a time in the car and in the Distribution Block until the Light Bulb is dark or the DMM reading drops. Now you know which circuit. Put the fuse back in and work the Circuit Components on that circuit one at a time by disconnection them until the light is out.

If you have pulled all the Fuses in the car and the Distribution Block other than the Main and are still sure that you have a Current Draw (and not just a worn out Battery or a Charging problem), then your Alternator or Starter can be the problem since both have unfused leads to the Battery (actually, I think the Main still fuses them).

If all of this fails, then you have a short from Battery to Ground somewhere before the Fuse Blocks or in one of the unfused Circuits (Alternator and Starter are the only two that come to mind). The short is what we call a weak short or high resistance short because it did not blow the Fuse, but is still drawing unwanted power.