First of all ,get battery tested . If any weak/dud cells it wont hold a charge and alternator will be working over time trying to keep up .With the alternator charging at 14.5v at idle , it is indicitive of a very low battery , far to high . Then , if battery not dud , get alternator tested . Obviously it is charging if at 14.5 v at idle , but it could be breaking down under load . Sometimes you do get faults with wiring / socket at alternator which can cause this . Any fast fit centre or accessory shop will test battery and alternator FOC while you wait .
Posted on Tuesday 16th of February 2010Don't understand this? Ask a question