[V8] battery drain?

[Dave Saad]

If you were on the 10A scale, then .13 is 130 milliamps and that will kill a battery.
Anything higher than microamps is a problem I would think. 
If you still have a factory radio, try unplugging it at the unit.  It has a direct connection to battery (most do now-a-days) and there could be something hosed inside it.
The factory setup has a wire that turned on a relay that powered the speaker amps.  I would have a look at that wire too.
If those don't pan out, find the wiring diagrams. There are antenna amps and probably other things on the circuit too.

Dave


On Jan 13, 2011, at 4:25 PM, Ed Kellock wrote:

> The 1990 V8q always starts very weakly.  I put in a brand new group 49 that
> was working great in another car and after a few weeks, the initial
> crankover is very slow.  
> 
> I just did a battery drain check... baseline was .13 amps.  That's with the
> multimeter set to 10A.  Until the courtesy light function timed out, it was
> showing 2.16.  Then .13.  I went through every fuse in the box and #4
> dropped it to .09.  Fuse #28 drops it to .04.  Both out drops it to zero.
> 
> Fuse 4 is the radio, speaker assembly (the rear speakers have been
> completely removed), trip computer, cigarette lighter, reading lights,
> vanity lights, trunk light, etc. quite a few little thingies.  Fuse 28 just
> says instrument cluster processor.
> 
> Question #1: Is .13 too high a draw for being parked, locked, and dormant?
> 
> Thanks!
> 
> Ed
> 
> 
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