battery keeps going flat!! help

[corsa_valver]

ive put a newer battery on it and that didnt do anything, if i jump start it run it, and then turn it off within seconds my battery is dead, also if i have the car running on tick over and turn heaters or stereo on it cuts out, am i right in thinking its alternator, help much appreciated

[big gra]

just have a general look at the alternator, check that no wires have come loose and the belt is in good condition, if not the alternator is probably at fault. find someone with a voltmetre, take a reading on the battery when its not running and then when its running. its should be about 13 volts when running!

[corsa_valver]

it was 14v when running, everything looks fine!!

[big gra]

just have a good look around to see if you can see anything not normal, check the earth on the negative terminal is good etc,, im having the same problem at the moment with my alternator!

[Jack]

Check all your earth straps, iirc there's one by the gearbox which can be a bit crap.

Does sound like alternator to me tho.

[draper]

sounds like youve got a drain, have you fitted anything electrical lately or had a accident/bump ??

see if you can get hold of a multimeter and test between the battery termial and the clamp and see if theres voltage

[Jack]

sounds like youve got a drain, have you fitted anything electrical lately or had a accident/bump ??
Good call, I forgot I had the same problem once with my alarm, cheap crappy microscan unit. No power at all to anything, so removed the fuses for the alarm and bingo full power restored.

[corsa_valver]

no nothing changed, for a long while the battery light and the one next to it have been lit, whereas before they used to just flash occasionally, its a corsa by the way, ive got the battery on long charge, then im gonna clean the earth on the alternator to bracket, looks a bit weathered, otherwise than that is gots to be alternator

[draper]

or the battery itself

[craig green]

I'd say, knackered alternator, poor earths or dying battery. Its the right time of year for a battery to keel over & die. They dont like cold.

[big gra]

just fixed my problem, the small terminal had a slight bit of rust so wasent getting a good connection, try cleaning all the comnnections up and making sure they are tight, but tbh youd be best just soursing a new alternator, or a replacement.

[corsa_valver]

think i shall do that, but i have tried new battery, which to be ohnest made no difference

[corsa_valver]

my car is a 2litre out of a late calibra what alternator can i use!

[draper]

just ring a motor factors, tell them what the engines out of and they'll get the right part numbers

[raymond]

:( get rid mate and buy a nova

[corsa_valver]

i would, but im not part doing a car up again, if it takes me 5years to get it done it takes 5 years, just needs lots of lurve and attention, and seems as the wife is away i can do it rather than the house!!!

[raymond]

buy daves you know you want toolol

[Clean 2.0 nova]

I don't understand why you think your alternator is at fault. By virtue of the fact your battery is at 14V when engine running proves the alternator is fine. Check for bad earth as previously stated, quickest way to test this is get a jump lead and short out the engine block direct to battery negative.

[corsa_valver]

well its def not alternator, charged it yesterday ran fine, started it this morning flat as a road kill hedgehog! scrap

[craig green]

Have you not got a local auto electrician or battery specialist?

I can have my alternator rebuilt with new bearings & all the gubbins for ?30ish here.

[draper]

Have you not got a local auto electrician or battery specialist?

I can have my alternator rebuilt with new bearings & all the gubbins for ?30ish here.

i can buy a new one for just over ?40 round here

[craig green]

Exactly! Not worth F**king about with.

New one will be 'ramanufactured'.

[draper]

yeah i see what your saying, i dont think the alternators playing up anyway

[Adam]

Fooked battery it sounds like to me

[craig green]

Cold weather, finished off a weak/old battery I expect.

[Adam]

Well, he did say "ive put a newer battery on it"

Newer as in? An old spare hes had sat in the garden? lol

The battery must be at fault, as if it was a drain, there would be enough power to turn the engine over straight after you switch it off, it would only drain the battery over night etc..

[big gra]

try and borrow a battery off a car that you "know" is in good workin order before you go spending money on stuff if it isnt needed!

[big gra]

:( get rid mate and buy a nova

best advice you could ever get!!! :thumb:

[craig green]

WHY IS THIS THREAD STILL GOING?

Our advice is falling on deaf ears! :mad: