On Apr 22, 2:29*pm, "Karl Townsend"
wrote:
I need the truck to haul home my latest toy...

I've had to leave the battery disconnected cause the juice gets sucked down.
So, today I put the ohm meter between the + post and ground. Got 180 ohm.
Pulled one fuse at a time hoping to find a faulty circuit. No joy, same
reading the whole time.

Any suggestions on how to find what's draining my battery?

Karl

On my 91 Ranger the leak was a stuck relay under the air cleaner box
that kept the engine control computer ON all the time.

Applying voltage to a digital meter on the Ohms scale gives a bad
reading, with an analog meter the smoke makes the scale hard to read.
I put a low value power resistor in the Ground lead and a voltmeter
across it to check the current. It doesn't matter too much that the
current reading isn't accurate and if I accidently turn on a power
load the meter will survive.

The light bulb in series with the ammeter is a good idea too. If they
still sell them, a replacement tail light socket has two separate
wires you can attach alligator clips to. That was the only test
equipment I carried on my motorcycle, for checking bulbs and fuses and
setting ignition timing.

Jim Wilkins