I have an annoying flickering of all my lights (interior, digital dash and headlights) when the car is running regardless of electrical loading. It is definetly worse at idle. I checked all the grounds and inspected all the cables. I cleaned some of the contacts and this made it a little better. Alternator puts out 14.2 volts consistently so I think the regulator is good. It is the 97 amp model. My question is: has anyone had this problem and found it to be a bad rectifier diode? There are 3 diodes and a capacitor in the alternator and I was wondering if it would be wise to try and change them even if they checked ok with a meter or should I just put a better 108 amp alternator in it? It seems to me a diode may be bad causing the flicker as it is not smoothing out the ac voltage to dc. Sound right? Any suggestions? TIA Mike PS The battery seems fine. It always starts strong.