98 Expy pcm

[merrym]

Hey all, I'm new here and not anywhere near savvy in anything vehicles. So please bear with me.
My 98 Expy won't charge the batteries. Has a new alternator, new battery. Every time I need to go somewhere I have to disconnect the battery or it will be dead by the time I return to it. I have been told it's the PCM thing. And my husband has checked everything! I don't know what to do. Any help or advice would be great. I only have about 10 days before my husband is home and I want to surprise him with it fixed. Thanks in advanced.

 

[Junkyard Jack]

It has a battery draw somewhere, a draw test will need to be performed.

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Hopefully this video helps.

 

[merrym]

What about the brand new alternator that was put in? It won't charge the battery at all. Would that be from the same thing?

 

[Yupster Dog]

What about the brand new alternator that was put in? It won't charge the battery at all. Would that be from the same thing?

Voltage Drop Test will check all connections on battery cables. I would start there to make sure voltage is getting where needed.

 

[Junkyard Jack]

I have installed brand new alternators that do not charge, I'd take that back to the place you got it from if you are sure it is not putting out 14 volts

 

[Petesexpy]

I agree the alternator should be checked. Then check the cables from the alternator. Does the battery charge with a wall-plug charger? If not, it could be a battery.