Whenever I turn anything electrical on, eg headlights or fan or stereo, my revs drop. when i turn the ac on, the revs drop but then go straight back up to where it was before... Ive run an extra earth off the battery to the chassis...any other ideas? thanks guys...
Check your alternator At idle loads off and then see if it the charging rate drops significantly when you switch loads on (lights, aircon etc)
