Start vechicle radio works step on brakes or turn on headlights and nothing works horn still works but no lights or radio runs for a minute radio comes back on sometimes i can get running lights with radio but step on brake or turn on headlights all lights go out no radio had alternater tested ran xtra ground to bogy and motor didnt help cant drive with no lights or brake lights even with radio off still no lights or brake lights help thanks
Power loss.
any good car elect. tech find this pronto.
just takes a volt meter to find the voltage drop point.
top fails:
1: corroded fuse box on right front finder (under fuse box)
2: did you say it kills motor too. cant figure above.
what about heater fan, it uses tons of current.
as does HL followed by tails.
20amps, 15amps and 5amps respectively
you have resistance some where.
and load , kills the voltage .
for me.
i'd:
check battery voltage , when it dims out.
then of ok 12.5v is ok key on,not started.
then check voltages at a right fender , fuse panel
all points there, 12.5vdc , same as battery v.
if OK
then
check voltage at the fuse above right knee
with load full, hl, fan, brakes, just key on.
now you know what circuit is fail ing by now.
report back with this facts.
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