Xantia 96N TD Just a quick question

Driving home last night (only a short trip of about 12 miles) and as i got into the city centre where i live when i was pulling up to a junction so dipped clutch. Battery light came on.
it goes off when you rev it past about 2k and then stays off for a while. it'll come on when ticking over (but not all the time) sometimes it flickers sometimes its not on at all.
Just after a few ideas where to start is it likely to be the belt or soemthing in the alternator itself.
I've also noticed that when i start the car from cold at night everythi9ng seems to be low power for a good 10 minutes. ie the lights are much dimmer the blower isn't as fast. This is on their own. i am not putting everything on all at once. Then as if by magic half way up the A38 it seems to kick in properly. Theres a noticable difference in the dashboards lights for a start and being able to see the road is always helpful.
Could this be related.
Rob
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
sounds like new battery required ...
you could probably do worse than KwikFit for this one - both diagnosis and new battery.
And remember to ask for 20% off to "match an online price you've seen" ... they will do it!
New Michelins on my xantia recently - 76 book price at Kwikfit - 56 actual price just for asking!
all the best
S

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

actual
Had a new battery in June. So it shouldn't be that. if it is its guaranteed for 3 years.
Rob
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

No it shouldn't be but... You could put a voltmeter on it and then put the lights on with the engine off. A good battery will keep the voltage up at about 12 V for some time. With the engine on the voltage should rise aiming for about 14V.
--
Malc



Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Malc ( snipped-for-privacy@lightindigooverthere.co.uk) gurgled happily, sounding much like they were saying :

Which will tell you nothing about the battery, but plenty about the alternator.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
gurgled happily,

True, just put it there for completeness really.
--
Malc



Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
gurgled happily,

but 13.6v with engine off
i know batteries aint gonna be 12v exactly but...13.6..
confirmed with different meters :)
charge Lights on all the time now. Battery light is dim with just ignition on. other lights are normal. NO trouble starting car.
sometimes with a hard rev the light will go off (4k+) for a few seconds or so. and comes back on (again very dim after its been ticking over a few seconds).
Had to drive it 38 miles this evening whilst dark. bit concerned. didn't prove to be a problem been out this evening. started first turn. (no struggling) lights on dim tho.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Rob Beech wrote:

bad earth somewhere ?
RT
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Rob Beech wrote:

seconds or

few
13.6 is ok and it's keeping the lights on so it's not your battery. Try earthing as someone else suggested. Don't just check the battery earth, try engine earthing etc, although a bad engine earth would probably mean bad starting (he muttered, thinking aloud).
--
Malc


Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Could it be one of the tensioners on the belt. it clears it self up above about 3200rpm or so (thinking maybe below this speed the tensioner is having problems.) thanks for all the advice. i'll try a few things and keep asking questions as necessaary cheers
Rob
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Dodgy battery?
I have a nifty gadget that plugs into the cigar-lighter socket and gives a rough idea of battery and charging 'conditions'. It was quite cheap in Halfords or some such place several years ago.
--
-- ^^^^^^^^^^
-- Whiskers
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

got
while.
everythi9ng
Theres
able
So, newish battery, unlikely to be that. Sounds as if you ought to get the charging system checked. Have you checked the alternator belt? Can you hear a squeal when you first start up? That would be belt slip. Otherwise it could be part of the alternator, on an older model the brushes could be on their way out. They are replaceable, but on many alternators you get the voltage regulator as well, though that eliminates another possibility. You say that everything is dim when first starting from cold (at night). A good alterator should increase the brightness of the lights even on an older battery which is not in its prime. Get the system checked out. Most battery places will do it, particularly the place you bought the recent battery from.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.