Alternator not charging battery

80

Asked by Mar 01, 2016 at 06:13 PM about the 1995 Ford F-150

Question type: Maintenance & Repair

Alternator is good and the battery is good but
there's something not letting it charge I've had both
check and check them myself check all the fuses
no wires but yet it will shut off about a mile down
the road

22 Answers

85,655

The car is shutting off because it had ben running off the battery until there is not enough juice left in the battery. So ya, gonna have to check the wire that runs to the battery from the alternator & the small wire that plugs into the alternator. Lot of times that plugin will go bad.

6 people found this helpful.
Best Answer Mark helpful
80

Are you talking about the little brown wire

2 people found this helpful.
85,655

That plugs into the alternator. That plugin can go bad, they make a replacement.

1 people found this helpful.
80

Alright just making it clear, thanks!

80

What is that wire for?

1 people found this helpful.
85,655

It runs power to the voltage regulator. Turns on the alternator so to speak.

80

I changed that wire and all the other wires and plugs to the alternator but its still draining the battery can't other ideas

3 people found this helpful.
85,655

Is the alternator working, or is something draining the battery with the key off? You changed you terminology.

1 people found this helpful.
80

No battery stays changed with key off but its drains like crazy then stays at 10.91

85,655

Ok thats because the alternator is still not charging and the car is just running off of the battery juice. So, you know the alternator works. It has to be in the wiring some where. I know on my vehicle there is a fuse for the air bag, and for the gauges. If one of these are not in place, my vehicle will not charge. Otherwise without being there to see, I don't know. But I will be thinking of anything all day for you.

80

Well I dontbknow if this will help but the battery light by the gauges is on and the check engine light will come on and off. But thanks for helping me

20

Did you ever figure this out cause I'm have same problem

2 people found this helpful.

Me too I am stumped

same here

10

I had the same problem after 3 alternators,testing every wire even the fuse. When I replaced the 20 amp fuse I found that it wasn'tmaking a connection,so I bent the tabs closer and my charging system started working.

1 people found this helpful.
3,900

What 20 amp fuse? What is it called in the fuse box?

5 people found this helpful.

Starter is grouding out if you got batt and alter checked take get it checked

10

Check the voltage regulator

1 people found this helpful.

my battery is not charging like it should. it just died on me coming home had to be jumped and then all my gauges started going haywire, however i have battery charger on it now it is way low

can anyone tell me whats the problem here i have a 1996 f150 truck

80

My problem was the cylinder was not hooked up right

I have a 97 F150. Replaced the alternater and battery was not getting charged. Looked all over motor, starter wires, under the dash. Found the big black battery terminal fuse box on passenger side of engine compartment. Inside the cover were two large fuses and under those was a smaller fuse inside a clip cover. The smaller fuse is a standard 10 amp auto fuse. It was blown by the alternater. Replaced the fuse and the problem was solved.

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