95 ford f250 wont charge battery

[echoman]

This is my fathers old farm truck that we use on the farm and to move equipment. I took the alternator to autozone and had it tested. They said it was not charging,which did not surprize me. It was the original alternator . I replaced it with a rebuit one ,but it still didnt charge. I took it back and had it tested ,but they said it was ok. I checked all the fuzes ,they were all good. I read that it could be the fuseable link ,but were is it and how do you test it? I'm stumped at this point.

 

[Diamondpilot]

I dealt with the same thing on a F350 of a boating buddies. I can't remember precisely but it was in a wiring harness along the firewall from what I remember.

Chris

 

[Egon]

Was the battery checked?

 

[DT86]

Was the battery checked?

That's what I was wondering as well.

Also, are those internally regulated or externally? I can't remember.

 

[echoman]

thanks for the replies.Yes I did have the battery checked and its ok . I'll look around the firewall I'm not sure what one looks like. I've never ran into this problem before. I might have to tke it to a shop ,I prefer to fix things myself . thanks again

 

[pmsmechanic]

These models also have an external voltage regulator. Take that in and have it checked too.

 

[echoman]

its regulated internally , its on the side of the alternator . thanks

 

[echoman]

I didnt know it also had an external regulator . I'm learning alot

 

[terryknight]

is the voltmeter saying low? the battery light on? have you actually put a meter on the battery while running to see what the output is?

 

[echoman]

yes the voltmeter in the truck is saying about 9 volts . I checked it with a meter. Fully carged battey said 12.36volts put it in the truck and started it checked the battery while it was running 12.16 voits at battery and at alternator . the longer it runs the lower the volts go. shut it off and it wont start until I recharge the battery thanks for the replies