even old age cause all parts to fail.
stress and age is the simple answer.
over time.
I used to run factory testing (ATE)
and we tested life spans using heat and fast cycling at 100C temps.
Mil testing was this.
military grade.
all parts made have bell curve, aka a bath tub shaped curve for life.
(curve shows;;;;;;early fails, long life then end of life fails.)
all parts. (electronic)
caps are 10 to 20 years rated, why think yours are good.> ?
the caps on this car love to;
leak
explode. crack, spit leak acid, go dry, even make tiny volcano's on the side of case, or rubber plug on bottom blows out or Bulges, the tops on some have X cross that cracks (to stop exploding trick)
the only way to know is test them with a ESR or Cap meter, best test is REMOVED. they are polarzed, never connect them up backwards, minus to minus it.
or simply replace them for $5
stress and age is the simple answer.
over time.
I used to run factory testing (ATE)
and we tested life spans using heat and fast cycling at 100C temps.
Mil testing was this.
military grade.
all parts made have bell curve, aka a bath tub shaped curve for life.
(curve shows;;;;;;early fails, long life then end of life fails.)
all parts. (electronic)
caps are 10 to 20 years rated, why think yours are good.> ?
the caps on this car love to;
leak
explode. crack, spit leak acid, go dry, even make tiny volcano's on the side of case, or rubber plug on bottom blows out or Bulges, the tops on some have X cross that cracks (to stop exploding trick)
the only way to know is test them with a ESR or Cap meter, best test is REMOVED. they are polarzed, never connect them up backwards, minus to minus it.
or simply replace them for $5
http://www.fixkick.com