Alternator??

zzf00l · Post by **zzf00l** » 18 May 2005, 00:59

My son's recently aquired 94 Xantia 1.9TD has a red battery warning light flickering on/off at revs below about 1500rpm...battery is new, alternator belt correctly tensioned, so suspect alternator but I am hoping it might just need new brushes, any comments would be helpful.
Cheers Ian

rossd · Post by **rossd** » 18 May 2005, 01:46

Yep, get the alternator tested I would say. I would guess at the brushes too.

Post by **Peter.N.** » 18 May 2005, 13:53

I would agree with rossd, but you can check by connecting a voltmeter across the battery which should read about 14 volts with the engine ticking over, much less than this and you have a duff alternator.

jeremy · Post by **jeremy** » 18 May 2005, 15:09

If it reads about 10 or 11 volts its likely its a phase down - probably one or more rectfication diodes.
jeremy