My battery will drain after about 2 days of not starting it (the battery is fine, its a new optima). Using a multimeter and a test light I have narrowed it down this. If I pull the Stop/Horn fuse under the hood the light turns off and the amp drop off. I took a reading at the horn connections and it did read a small amount of volts, is that normal? Anyone have any ideas on where to go from here?

 

You try that yet?


Take the horn off and see if it still drain your battery.
More likely the horn relay is no good. Stuck on or touching.

 

you need to measure current, not voltage to test for current leakages.

hmm... when you charge your battery, check if your brake lights are on. theres a blue plastic/rubber stopper at the brake pedal that often gets broken and will leave the brake lights on constantly, thus draining the battery.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">hmm... when you charge your battery, check if your brake lights are on. theres a blue plastic/rubber stopper at the brake pedal that often gets broken and will leave the brake lights on constantly, thus draining the battery</TD></TR></TABLE>
This is a common culprit, this is what happened to me a year ago. I dropped some serious cash trying to figure out that it was only a piece of plastic. It is a simple fix once you determine if this is the problem. Don't make the same mistake I did.

 

That's not the problem, I replaced that blue thing with a bolt along time ago. Thanks

 

Theres also one on the clutch that if it breaks you cant start the car, I recomend replacing that one also

 

Not on the 88, that year had no clutch safety switch

 

I fixed my draining battery problem. The door latch wasnt closing all the way keeping my seat belt retractor solinoid on, draining the battery.

 

lucky

my multimeter broke on me somehow, dang radio shack crap was $30