3g alternator confusion
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Laughing Gas
Joined: Dec 2010
Posts: 924
Likes: 1
3g alternator confusion
So I got to do but I'm confused because my truck will charge the battery but when I have the lights on and I honk the horn the lights will dim and the horn will barely want to sound. I tried searching the forum to see if anyone else had this prob but I couldn't find anything my battery is 4 years old, I just got a reman alternatorand it didn't fix the problem. I checked every connection more then twice to see if everything is ok and I can't see anything wrong connected
Last edited by fordboy300; May 13, 2012 at 12:55 PM. Reason: can't write a decent sentence from my mobile app
Posting Guru
Joined: Jan 2012
Posts: 1,410
Likes: 1
From: Dallas, GA
I think the alternator is not the only thing that is confusing you. I think the ability to write in a decent scentence also has you confused.
I, nor will most others, am not able to tell one bit what it is your issue is or what your question is.
If you want adults to respond, then write like one
I, nor will most others, am not able to tell one bit what it is your issue is or what your question is.
If you want adults to respond, then write like one
Postmaster
Joined: Jan 2012
Posts: 3,462
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From: Richmond
-4yo battery
-New rebuilt 3g alternator
-Not charging. Unable to do lights and horn at same time.
I think that's what's going on.
So did the lights and horn start and that's why you replaced the alternator?
What voltage do you have at the battery terminals while running?
If you disconnect the negative battery cable and measure in AMPS between the battery and the cable how much draw is there? (engine not running)
If you take the battery out of the truck and let it sit by itself, does the voltage drop?
-New rebuilt 3g alternator
-Not charging. Unable to do lights and horn at same time.
I think that's what's going on.
So did the lights and horn start and that's why you replaced the alternator?
What voltage do you have at the battery terminals while running?
If you disconnect the negative battery cable and measure in AMPS between the battery and the cable how much draw is there? (engine not running)
If you take the battery out of the truck and let it sit by itself, does the voltage drop?
Thread Starter
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Laughing Gas
Joined: Dec 2010
Posts: 924
Likes: 1
-4yo battery
-New rebuilt 3g alternator
-Not charging. Unable to do lights and horn at same time.
I think that's what's going on.
So did the lights and horn start and that's why you replaced the alternator?
What voltage do you have at the battery terminals while running?
If you disconnect the negative battery cable and measure in AMPS between the battery and the cable how much draw is there? (engine not running)
If you take the battery out of the truck and let it sit by itself, does the voltage drop?
-New rebuilt 3g alternator
-Not charging. Unable to do lights and horn at same time.
I think that's what's going on.
So did the lights and horn start and that's why you replaced the alternator?
What voltage do you have at the battery terminals while running?
If you disconnect the negative battery cable and measure in AMPS between the battery and the cable how much draw is there? (engine not running)
If you take the battery out of the truck and let it sit by itself, does the voltage drop?
2. I haven't checked it yet with this alternator.
3. I'll check that tomorrow at work.
4. If i take the battery out and let it sit on the floor?? Haven't done this yet.
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Joined: Nov 2007
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From: Denver Metro Area, CO
A battery with a failing cell will still fail, even on the garage floor.
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Thread Starter
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Laughing Gas
Joined: Dec 2010
Posts: 924
Likes: 1
Right, remove the battery from the vehicle and see if it still discharges all by itself. This separates the two, and any parasitic draw that may exist in the truck's wiring can have absolutely zero effect with the battery someplace else. A battery with a failing cell will still fail, even on the garage floor.
A battery with a failing cell will still fail, even on the garage floor.okay I will disconnect it tonight. But I don't know if this is a myth but won't a battery discharge if left on a concrete floor?
Posting Guru
Joined: Jan 2012
Posts: 1,410
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From: Dallas, GA
I find it hard to believe that it would, being in a plastic case...but stranger things have been true.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 39
From: EXTREME southwest CT
Before Bakelite in the 'teens battery cases were made of lead lined oil rich cypress.
I was friends with an old timer, Difenbach Kleis, that had helped to start Echlin, and had numerous patents to his name.
I was friends with an old timer, Difenbach Kleis, that had helped to start Echlin, and had numerous patents to his name.
Posting Guru
Joined: Jan 2012
Posts: 1,410
Likes: 1
From: Dallas, GA
Wow, that's cool!! I bet those were some heavy suckers!!