I have a problem with my alternator but mine isnt producing enough power. Car wont start i tried and tested the battery with multimeter and all seems ok. So tried disconnecting the possitive terminal on the battery after jump starting and cut out straight away. The alternator was checked while on the vehicle by a mate who is a mechanic and says its working fine but thinks it could be an alternator for a smaller engined sierra i.e 1.8 which therefor isnt producing enough power to start the car. Is this a possible problem or should all alternator work no matter what amps it is???
Thanks for any comments