weird starting problem misleading tests.
well i just took 1 hour to diagnose a starting problem.
starter just clicks really fast.
test 1 voltage test> 10.5 volts.. conclusion battery dead
test 2 voltage during crank> 5.5 volts .. conclusion battery dead
test 3 jump starting> failed! volts from good car 14.4 with car running. volts at dead car same.
after test 3 i was confused. jump starting with known good battery failing made my first 2 tests questionable.
voltage drop during cranking > .3 volts.
okay... now jump starting wires from good car directly to starter and ground bypassing wire from B+ to starter. Car starts!!
so after this i said battery wire to starter is no good. i was going to drive to autoparts store and get a new one, then i hesitated and tested one more regular jump start. car starts!!
hmm added up the test results
3 tests says bad battery
2 tests says bad battery cable.
I went and bought a new battery and it was the correct choice.. hmm over thinking the problem and running too many tests confused me. anyways i just wanted to share this problem.
my theory is i did the first jump start incorrectly?? but wat are the chances???