Alternator Output?

[T350 Chick]

Alternator output today seems to be running at 13.1 - 13.2? @ 3000 RPM With the air con on down to 12.8 and at idle 11.8 seem's very low. Do you lot think that I need to change the Alternator?

[shep1001]

T350 Chick said:

Alternator output today seems to be running at 13.1 - 13.2? @ 3000 RPM With the air con on down to 12.8 and at idle 11.8 seem's very low. Do you lot think that I need to change the Alternator?

Could be going tits up but I would check the earths first and the security of the wires to the battery &alternator

Shep

[Ant.]

Would also check the security of the alt 80amp fuse too.
Bad/loose connection will go bad creating charge problems

[T350 Chick]

80amp? where is that one? I know there is a 100 amp one under the air box???? is it not the same one.

[Ant.]

T350 Chick said:

80amp? where is that one? I know there is a 100 amp one under the air box???? is it not the same one.

Yes the same one, mine had an 80 in there...