Alternator issue

[Bertyvtr]

Got a problem with my vtr
The other week the power steering rear window and fan stopped working with the battery light flashing then constant on battery light so I checked battery and it was reading just over 12 volts engine running. So I guessed alternator was issue so went to scrappy and got one but it sais 12v on it instead of the original 14 on the old one..... I put it on and it read 13v but yet it occasionally the battery light still flashes then the car dies ? Starts straight back up when I bump start it.....
Any ideas would be great
Thanks

[greyjasper51]

How do you know that you werent buying what youve just taken off.. They usually all say 12v but pump out about 14...

Also have you taken a reading straight off the alternator just to make sure its not wiring rather than a hardware issue?

[Bertyvtr]

Just thought I would try it lol was free so worth a try and no I will in the morning mate. Could it be that it's a lower powered one? I made sure it was one with powersteering

[greyjasper51]

I think the phase 1 and phase 2 are different but itll be the amps not the volts... If youve got a bad earth it could very well be that, thats causing the drop in power... Unlikely but not unheard of...

[Bertyvtr]

Do you know what's amps its meant to be running at mate ?

[samstar]

Originally Posted by Bertyvtr

Got a problem with my vtr
The other week the power steering rear window and fan stopped working with the battery light flashing then constant on battery light so I checked battery and it was reading just over 12 volts engine running. So I guessed alternator was issue so went to scrappy and got one but it sais 12v on it instead of the original 14 on the old one..... I put it on and it read 13v but yet it occasionally the battery light still flashes then the car dies ? Starts straight back up when I bump start it.....
Any ideas would be great
Thanks

i had the same problem mate it was the brown plug under the steering column
you have to unplug it and bypass it just like this
http://images19.fotki.com/v359/photo.../ignfix-vi.jpg

[Bertyvtr]

It seems like my new alternator isn't keeping up. It's fine when I havnt got nothing on but as soon as I have lights or fan on the battery light flickers gauges start jumping up and down then it does

[wadoryu]

Clean all the earthing points.