I have a 99 accored 3.0 ex V6 coupe. The night I drove it home, completly stock (including stereo), every light in the car flashes or pulsates. It seems to get worse the longer I drive the car through out the night. I've checked my grounds, replaced one of them. I'm thinking its the voltage regulater in the alt. but do i have to replace the alt. Could it be the belt or battery? Oh yea i tested the car at work with on of those handheld battery, starter and charging system computers. Tested fine. if i remove the alt. and run it on a machine strickly for alt. will it tell me anything different? help me out please.

 

turn the car on and put a multimeter on the posts of the battery is should be around 14.xx volts

 

Were you playing any bee gee's songs?

 

 

That about sums it up.

 

was that the hand that made you a man?

 

It sounds like your alternator is suffering and the longer you run it the worse it gets.

It's thermal breakdown and the hotter it gets the more internal resistance there is and the less voltage it puts out and the more your lights will flash. Try taking it to autozone or something and they'll test it for free. That will help you a lot!