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eratic Tach and volt meter
Posted: March 22nd, 2015, 6:26 pm
by nolacarver
My tachometer and volt meter is consistently chattering in sync very erratically. any suggestions of a possible culprit ?
Thanks for any help!
Re: eratic Tach and volt meter
Posted: March 22nd, 2015, 8:16 pm
by waybomb
One of the diodes bad in the alternator? That will cause pulses.
Re: eratic Tach and volt meter
Posted: March 23rd, 2015, 10:49 am
by nolacarver
It is a new alternator but I guess that explains why the battery on that engine went dead after cruising. The amp meter is at 13 amps while running and chattering.is it possible to not charge battery even though it shows 13 amps?
Re: eratic Tach and volt meter
Posted: March 23rd, 2015, 11:36 am
by waybomb
If your shop does not have an alternator tester pull it out and bring it to a place like autozone. They have a rig that can fully test the alternator.