Realtime help Alternator question

[Jakes40]

Alternator just went out 3 hours from home on a Friday night. I found one at a autozone but it's a 110amp and They have a a 140amp but not in stock. How do I tell which one I have.

Chris

 

[Evan's f250]

You could compare the 110 amp to the one on your truck if they will let you. You would think that the 140 would be overall bigger.

 

[Jakes40]

I would rather get the 140 BUT I'm stranded and all thay have is a 110amp in stock.

So it's going to get a 110amp and hope I can exchange it for a 140 when I get home.

 

[Jakes40]

I had the altinator checked advanced auto said it's good. Droped off the batteries for charging and checking. Any thoughts what it could be does the PCM control the charging circuit or just monitor it?

 

[DNFXDLI]

Are they the original batteries?.

 

[Jakes40]

Yes Thay are but I don't have the money right now to replace them if they are not the problem I will replace them when I get home.

 

[DNFXDLI]

I would check them, I had both of mine go and it caused all kinds of issues.

 

[blacksnapon]

look at the fusible links (3) by the glow plug module.

 

[bismic]

PCM only controls the alternator in the dual alternator option.

 

[Jakes40]

Here's the rundown.
Replaced one battery (did not have the funds for 2) the amps flickered between 14 & 13 when I was driving. But whent to 14 when idling and the battery light whent off. My thaught is a bad battery.
I'm getting anouther battery and seeing how it goes.
How can I tell if it's a 140amp alt or a 110amp. Wondering if the PO put a 110amp alt in it that's why it didn't keep up with all the accessories.

Chris