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  #16  
Old 07-09-2010, 06:58 AM
05RangerEdge 05RangerEdge is offline
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Default Re: Battery Light?

well not puddles more like covered roads at high speeds and you cant even see out the window cuz cars are spraying you so bad LOL. I will keep an eye on it
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Last edited by 05RangerEdge; 07-09-2010 at 07:20 AM.
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  #17  
Old 07-09-2010, 09:19 AM
FireRanger FireRanger is offline
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Default Re: Battery Light?

That wouldn't damage the belt. What I meant was it would slip while it is wet. However, it is possible that water got in the alternator which could have been the begining of the end.
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  #18  
Old 07-10-2010, 09:15 AM
sgtsandman sgtsandman is offline
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Default Re: Battery Light?

You might have the same problem I do. The voltage regulator on the alternator is going bad. The system charges the battery and the votage is correct when using a voltmeter but when I do the test the Haynes manual descibes, it shows the votage regulator is not working properly. This leave me with two options, rebuild the alternator if I can find the appropriate parts or get a new alternator. I'm 99% sure I'm going to go with the latter option and be done with it.
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  #19  
Old 08-04-2010, 07:05 PM
05RangerEdge 05RangerEdge is offline
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Default Re: Battery Light?

Update: Turns out that my problem was rare but cheap(could have been worse)!

After dissecting my alternator we found that one of the brushes had broken off completely and was rolling around in the casing! My mechanic said its rare and since i caught it in time all that needed to be done was just replace the brush unit. $20 part and problem solved! I was told i should get a another 2 to 3 years out of it, I am just happy I didn't have to fork over the cash for a whole new alternator.
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  #20  
Old 08-30-2010, 06:25 PM
dbb2300 dbb2300 is offline
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Default Re: Battery Light?

Hello my name is dayton. I'm new to this forum but I have I 94 b2300 and my batt light is also on. When I hit the gas and the rpms go up the light flickers but at a idle the light is on constant. I checked it wit a multi reader and it checks good. Can't figure it out.
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  #21  
Old 09-06-2010, 05:09 PM
ranger1014 ranger1014 is offline
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Default Re: Battery Light?

I accually had this problem 3 weeks ago it turned out to be the alternator
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  #22  
Old 09-07-2010, 11:12 AM
dbb2300 dbb2300 is offline
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Smile soloution to your problem

I to had the same problem with the batt light. I found on my truck there is a single white wire with a black stripe on it. The wire is falling out of the connector or the connector has a bad connection. Let me know if that solves your problem if u haven't figured it out yet.
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  #23  
Old 02-04-2011, 09:31 AM
95Ranger2010 95Ranger2010 is offline
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Default Re: Battery Light?

I am running in to this same problem. I just got a 95 4x4 3.0 5 speed. the day after i got it , had to replace the rear breaklines. Once that was done i took her down the road to put her through her paces. Got her up to around 4 grand and the battery light came on, let off , battery light went out. Next day went for a drive , battery light came on and this time has stayed on. The Truck starts great, runs great, the voltage meter on the gauge cluster says its charging fine. Guess I have some checking to do after reading this forum, so glad I found this site. But if anyone has an idea why the Bat light would stay on even when the Alt is charging , please do reply . Thanks in advance
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  #24  
Old 02-04-2011, 10:07 AM
FireRanger FireRanger is offline
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Default Re: Battery Light?

The battery gauge on the dash is useless. If that light is on, then your alternator is quite likely not doing jack. With the engine running, what is the votlage at the battery? You'll need a voltmeter to check this.
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  #25  
Old 02-04-2011, 11:11 AM
modelageek modelageek is offline
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Default Re: Battery Light?

Quote:
Originally Posted by FireRanger View Post
The battery gauge on the dash is useless. If that light is on, then your alternator is quite likely not doing jack. With the engine running, what is the votlage at the battery? You'll need a voltmeter to check this.
+1 get a multi meter(Harbor freight sells digital ones for $5).......test the voltage at the battery with the truck running. you want around 14.5. it will drop a little as you turn lights, fans etc on...

----------

Quote:
Originally Posted by dbb2300 View Post
I to had the same problem with the batt light. I found on my truck there is a single white wire with a black stripe on it. The wire is falling out of the connector or the connector has a bad connection. Let me know if that solves your problem if u haven't figured it out yet.
+1 I think my wire might be a different color but the same principle.....there is a single wire that connects to the alternator if you remove it the bat light comes on. make sure it is not loose
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  #26  
Old 02-04-2011, 02:09 PM
FireRanger FireRanger is offline
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Default Re: Battery Light?

Adding to what ModelGeek just said...

It will be ~14.5 volts when you've just started it. As the battery recharges, it will drop to a more normal 13.5 to 13.8 volts. It should not be staying at 14.x for more than 10-15 minutes at the most.

That wire is indeed the wire for the indicator light but that whole circuit serves two purposes. It is also the field current supply for the alternator to let it start generating electricity. When the alternator is not generating electricity, current will flow from the fuse panel through the LED and ground through the alternator. This makes the LED light up and indicate shits fucked up. Once the alternator is generating electricity, current can not flow that way and the light goes out.

If the wire is disconnected, or the fuse is blown the light will not light up and the alternator can not begin generating power.
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How to: Aux light wiring, relays, & fuses
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  #27  
Old 02-04-2011, 08:28 PM
95Ranger2010 95Ranger2010 is offline
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Default Re: soloution to your problem

Quote:
Originally Posted by dbb2300 View Post
I to had the same problem with the batt light. I found on my truck there is a single white wire with a black stripe on it. The wire is falling out of the connector or the connector has a bad connection. Let me know if that solves your problem if u haven't figured it out yet.
Hey thank you guys and great thanks to dbb he hit the nail on the head. Same wire on the back side of the alt. Just a short in that wire fixed and no more bat light. thanks again.
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  #28  
Old 05-05-2013, 05:31 PM
John from so cal John from so cal is offline
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Default Re: Battery Light?

1999 Ford Ranger - Battery Light is lit, replaced alternator, battery and belt are less than one year old. Old alternator failed at parts place. Installed new alternator, which tested good at parts place and still have same battery light. With motor off, voltage at battery is 11.92, and voltage is at 11.92 from b terminal. When vehicle is at idle, voltage is 11.6 and from b terminal to test fitting on alternator is 11.2. Voltage drop on positive and negative cables is 0.01 for each section, so I don't think it is a cable problem. Fuse 15 is good as well, 11.6 across that gap. I am quite puzzled, I had them spin up the unit on the test bench at the parts place and I saw the meter hit over 13 v from the b terminal to the alternator casing.

Solution: the fuse for the voltage generator in the power distribution box was blown. Replaced it and problem was solved.

Sorry for the old bump, but this is the only posting I saw on this subject.

Thanks guys
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  #29  
Old 05-14-2013, 04:21 PM
Chuckphillips Chuckphillips is offline
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Default

Same issue. I dont have a 15 fuse in either the power dist box or pass comp fuse panel.
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