cars have bad habits
like:
alternators going nuts
tow guy connects battery jump backwards
A/C clutch huge back EMF voltage spikes, surges. huge.
ESD events during service
ecu plugged it hot, battery not disconnected
car hit by lightening?
hot temperatures
vibration huge, !
the FPR relay shorts the coil or wrong relay used, or hot wired, wrong.
and more.
like:
alternators going nuts
tow guy connects battery jump backwards
A/C clutch huge back EMF voltage spikes, surges. huge.
ESD events during service
ecu plugged it hot, battery not disconnected
car hit by lightening?
hot temperatures
vibration huge, !
the FPR relay shorts the coil or wrong relay used, or hot wired, wrong.
and more.
http://www.fixkick.com