Hi guys Help or advice appreciated please re constant flat battery i.e. from fully charged battery too flat to start car less than 21 hours later! . New alternator fitted at beginning of year (and less than 3,000 miles ago) to
1994 Disco 2.5 TDi but I now live 300 miles away from the garage that did the job so going back to garage is not an option. Local auto electrician has pointed out that when engine off the alternator 'whistles' very very faintly and says the regulator within the alternator is at fault.Do I have to buy another new alternator as has been said or can I solve the problem another way and if so how?
All the best and thanks.