Pulsing Battery Power (Not steady at 14v)

[FTO_GPX09]

Hi,

Wondering if any one could give me any advice. I have just bought a FTO GPX 1995 and it has a strange problem with the battery power I think... the battery gauge fluctuates between 12v - 14.5v (pulsing) and all the dash pannel lights + headlights (pulse) dim then bright constantly.

The alternator has just been reconditioned a few months back - does this sound like a problem with the battery it's self or the alternator again?

Thanks for any help.

[CJ]

Sounds like the alternator, check the belts and tensioners for free movement / slippage, also check visible earth connections.

A sure fire test is to start the car and diconnect the negative terminal from the battery - the power being generated from the alternator should be sufficient to keep the car running. If it cuts out, the alternator is at fault.

CJ

[FTO_GPX09]

Thanks CJ.

I'll do that test as a starting point and go from there, will post back once I have had chance to do it.

I'm guessing it's not going to be cheap to fix if it's the alternator? Could a poor earth connection cause that type of problem?

Cheers.

[CJ]

Could a poor earth connection cause that type of problem?

Possibly, yes. Search the forum under 'alternator' for more info on costs and procedures.

CJ

[FTO_GPX09]

Hi,

I did the alternator test and the car still ran with the negative terminal disconnected, I checked the earth/belts and they are all fine.

Any ideas what the next step would be? Battery?

Thanks for any help,
Dave