Hi guy can anyone help. I was driving on the motorway and the battery light came on then it seemed to loose some power was hard to get over 65mph.
Got home and tested the alternator and it had failed.
Day 2 put new alternator on idle is fine but still seems powerless when you put you foot down it goes then nothing not total power loss just not as normal.
Any idears
Thanks

Have you tried another battery, one you know to be good or new?