Hi Gang,
I hope all is well? My '06 E350 has been sitting long enough - I need
to find a short. I discovered the battery was being drained. I
connected a Test Light between the Neg Term and the the disconnected neg
cable - the light was on full bright.
I started pulling each fuse one after the other hoping one would cause
the test light to go out. I checked all I know of and none changed the
test light. - I pulled those in the truck, drivers area and engine
compartment.
My next step to to disconnect the wiring (B+ maybe ??) on the
Alternator to see if that's the problem. Assuming that tells me
nothing, is there any other circuit checks I can try that might be
draining the battery?
I need to test it some more - but it's a new battery, I can charge it to
~13.4V, disconnect the charger and connect the + & - cables, attach my
DMM and I can watch the V's drop .04v every 2-4 seconds. Last time I
checked it, I think it stopped draining when it go to ~10 Vs if that
tells us anything? Maybe it's a DOA?
I'm going to take the battery back to the store and have it tested on
the off chance it's a bad battery. What else can I check and which wire
do I disconnect on the Alternator?
Thanks ya'll, Merry Christmas and Happy New Year!
LarryT
06 E350
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