New Alternator And Battery, But Doesnt Charge!
Posted 02 August 2012 - 07:17 PM
Posted 02 August 2012 - 07:21 PM
get a volt meter and check battery voltage with everything off.
then check it with engine running but all accessories/lights etc off.
then check it with lights, heater, radio, hazards, rear window heater on.
record the voltages at each one and report back.
you can check the battery for ampage draw by removing the earth clamp from battery and using a amp meter between the battery and earthing point/cable. if this shows 'x' amps been drawn when everything is off, you have a power draw which will flatten the battery when stood.
x depends on if you have alarm, security led etc which would always draw something.
Posted 02 August 2012 - 07:35 PM
Posted 02 August 2012 - 07:37 PM
Posted 02 August 2012 - 07:39 PM
on the battery draw (amps) check, usually anything more than afew mili amps indicates a draw. if this is the case, you can remove a fuse from each system one at a time and check if it changes. if you find removing a fuse, makes the battery draw lower, than your fault is within the circuit that the fuse supplies/protects.
Posted 02 August 2012 - 07:44 PM
Does the red indicator light in the Speedo come on when you turn the key? It should come on before the car starts.
+1 to that.
If the red light is not functioning as follows, report back.
1) red light off with the engine off and key removed.
2) red light on with the engine off and the key in the run position.
3) red light off with the engine running.
In particular, let us know if the red light fails condition #2... never comes on.
Posted 02 August 2012 - 07:45 PM
We checked the draw before I had a new alternator, and the it wasnt putting back what was being taken out, so it was changed, but now it seems that wasnt the problem.
Posted 02 August 2012 - 08:15 PM
the indicator always works, even when the battery cant turn the engine over.
I assume you mean it always works as described in the three conditions I listed above... not that the red light is always on.
Posted 02 August 2012 - 08:22 PM
Posted 02 August 2012 - 08:25 PM
as for the ignition light it always comes on in the 2nd position and goes off in the 3rd position, so it works fine. The batteries also connected properly!
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