Jcb
24-03-08, 09:20 PM
Why is it that when the car is being run gently (changing up between 2-3k rpm), the voltmeter shows 12V on the dash, but when you drive a bit harder, if only have the revs at say 4000rpm for just a few seconds, the volt meter goes up to just under 15V.
When it is on 12V, there are some electrical malfunctions too. I.e say you have the headlights on, then the rev counter stops working. The headlights get dimmer themselves too. The other day, the voltage dropped to about 9V and the dash went blank and the headlights were really dim. But simply revving it up a bit solves it all out. When its running around 15V you can have all the electrics you like running and it handles it fine.
Is this a problem with the alternator/battery?
I installed the wiring for an amp not long back, but that it just the wiring, it isnt rigged up to anything.
When it is on 12V, there are some electrical malfunctions too. I.e say you have the headlights on, then the rev counter stops working. The headlights get dimmer themselves too. The other day, the voltage dropped to about 9V and the dash went blank and the headlights were really dim. But simply revving it up a bit solves it all out. When its running around 15V you can have all the electrics you like running and it handles it fine.
Is this a problem with the alternator/battery?
I installed the wiring for an amp not long back, but that it just the wiring, it isnt rigged up to anything.