Quote Originally Posted by bigtallsam
thnaks qube - i meant the ballasts, shoulda worded my question a bit better,

the ballasts and bulbs came complete - i think their ok. i might check the voltage from battery and or alternator after all she is 16 years old!
I had something like this happen twice. Though in my case, it either never stayed on (just flashed) or turned off when it felt like it, and eventally on when it felt like it.

1. mismatched ballast and temporary replacement bulb
2. ballast defective