Assuming that your battery is in good shape and is not dry you
probably have a short.
I once had a battery go dead every couple of days and the alternator
checked out just fine (after I charged the battery and started it up
to make the test). Sears couldn't find anything wrong and they gave
me another battery.
What had happened was - I was tooooooo lazy to remove the charging
wire when I changed the alternator and that little spark I saw WAS
important. One diode from the *diode trio* was blown and that puppy
would now charge unregulated until the battery was dry. When it
cycled enough to finally boil the battery dry (and not take/hold a
charge) I was able to find the problem. Until then, every couple of
days or so, the battery was too low to start the car.
When I was a kid, my dad had a Chevy car with long side windows for
the back seat (two door). I forget the model but it was a nice car
and he was proud of it. Starting from the third year of ownership the
battery would go dead periodically. What he finally found, after many
fruitless searches, was that when he loaded his golf bag in the trunk
it wore a wire that was under the rug and it shorted against a bare
spot on the metal. THAT one drove him nuts for a whole summer :) Now
and again he would slide some groceries over the spot and ... battery
Not saying that is what is wrong with your truck. Just makes for a
story to underline the fact that electrical problems are not simple to
*Note*...I put a meter to the battery and negative cable in series as
instructed by the local shade tree mechanic..I have 2.6 Amp draw on battery
with everything off key from ignition and almost every fuse removed from
terminal block.....PS this model of truck doesn't have a glove box
light....THANKS FOR ADVICE TO ALL
"The Nolalu Barn Owl"
10.ca> wrote in message
Now that you know how to Check the Draw..
Put the meter in the Same way .. To the alternator..
Remove Wire from alt
put one probe on the Alt terminal and the other on the wire you took
off.. you should HAVE ZERO draw !!
you can also Do the Same thing at The fuse box..
Remove The fuse, then put the Probes on each side of the Fuse Holder..
you will be checking for anything going thru that circuit. another
words, your Meter is taking Place of The FUSE ZERO again!
Kevin S. wrote:
Just a wondering if the battery goes dead while it is running if so your
charging wire could broke. If it goes dead while sitting then check for
shorts in anything that stays on when the key is out. Kev
To all concerned and offering advice...Thank You.
1)Battery does not go dead while running, only after sitting a few days...
2)I have 2.6 / 3.0 amp draw on battery while sitting, engine off, keys from
3)disconnected following devices with no luck
every fuse and flasher, cigaretter lighter, no bulb in glove box, dome
light,alternator,choke,cd player,analog clock,
4)did replace battery,alternator,starter,distributor,
...did get advice on doorswitches? or horn relay?
THANKS for all wonderful advice this one has puzzled the best shade tree
mechanics in the county....lol
it is possible you have tWO items Drawing the battery down
you Disable one of them ( Problem#1) and figure it is not the problem,
( its actually drawing from the battery ) So you reconnect it (because
problem #2 is still drawing from the battery.)
Now you disconnect problem #2 ( problem #1 is drawing from the Battery)
so u figure that is not the problem so u Reconnect it!
and continue to other Circuits
pull all the fuses LEAVE them out for the next tests.
Remove the wires from the alt.. If that aint it LEAVE them off and Go
To the next Circuit..
you could have tWO circuits messing up..
You donnot need to use a meter to check for the Short.. do it visually
Remove the pos cable from the Battery
now hook up a Bulb Between the Battery pos post and the pos Cable you
took off.. ( Go to a salvage Yard and cut out a Tail light socket.. or
just hook up a 12 volt test light in this manner !!
As long as you have a DRAIN on the system the light will Glow. Once you
disconnect the problem circuit it will go OUT !!!
Here is something ELSE For you
Even tho you did a LOAD test on the Battery, look at The SIDES of The
BATTERY, If the Center of either side is Bulging out .. 9 times out of
TEN. That battery has a WEAK CELL..
Take my word For it..
Many Years ago My Family owned one of those So called JUNK YARDS,1939
thu 1988 Way Before LOAD tester were available, and This is How We told
that a Battery WAS BAD ..
And DOC if you donnot believe me THEN TRY it on a KNOWN Defective
BATTERY !! you will see the BULDGE !!
Kevin S. wrote:
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.