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There's more than a dozen pages of discussion on this Alternator thread
I have a '05 6.0L Diesel with one alternator (that I know of) and two batteries
The batteries don't seem to last long, about 3 years, and I guess that's life with this truck
The real problem appears to be the charging system.
I use my truck for lots of short trips and after a couple dozen short trips it starts cranking slow, slower, then not at all. I put a 10amp charger on for a few hour and then it's good for another month or so.
Reading through the comments here, look it's time for a higher output alternator.
With so many comments I really just want a simple answer
How much charging do I need? is 140 enough? Any reason not to install more?
When/How does it benefit adding rectifiers? 2? 3?
Is there a DIY for the Alternator replacement?
Anything more to it than simple R&R?
Your situation is similar to another member from about a year ago, and why I redid all the video segments of alternators for a vid I haven't finished. It's a tough call.
Batteries will only accept so much of a charge at a time, and a 140a can supply that. But even the initial 90 seconds of glow plug time will hamper that charging ability. The initial battery fulfillment for normal battery conditions for us takes six to 10 minutes. However if as you indicate with each segment of your run the battery depletion becomes a cumulative event, then it takes some work to get it corrected.
From your words, the easiest solution would be to be more proactive and deliberate in getting a charger on the batteries, and get them tested to see if in the current situation the depth of discharge has brought them to a less then useful life.
Or I would go with a Leece-Neville 230a. This option first would give you the capacity for both the glow plugs and batteries at first start, and in my case but not verified by others, has the potential to just shut off the glow plugs at start, EPA be damned.
Now, that's just a judgement as you are the only one who knows your exact driving cycle, and even the 230a may not get you to your ideal. But in either case the batteries need to be checked for capacity after this type of cycling.
It's a simple R&R for those of us mechanically inclined, but as in another thread, for those who are not it can be a challange. I can flip an alternator in 10 minutes in my truck, first timers can be as much as a few hours with the possibility of a tow truck delivery to a shop. But many here are eager to help and can get you through.
There nothing wrong with the charger routine though, especially when your using the truck where a gas powered vehicle would be a better choice.
I kind of have the same issue as bsd. My wife drives the Ex to work which is approx 15 minute drive, averaging 40 mph., and - she drives conservatively. When I drive it- much different. We take it to Vermont often and I pull a dual axle with a load every once in a while. I do not have any aftermarket accessories drawing extra electric. A buddy got me an alternator when the last one died. (don't know the brand, but the sticker is blue and looks like it may have "PS" as a logo, and lists: model 8478N, PN 8307, SN 8887) I googled it, and came up with this: Discount Starter and Alternator 8307N Alternator for FORD
This is saying it is for a dual alt system. Would that make a difference. Price is good-$114.00 new.
My existing alternator is 4-1/2 years old and just Died. (Of course, directly after I replaced the oil cooler, egr, turbo rebuild and replaced both batteries). So, wondering what I should get to replace it. If what I read about others experiences, this actually lasted longer than most. Any comments?
If you just went through that up top work I would carefully look at the plugs and wires for any issues there as that would prevent the alternate from working. Fords wires are that that heavy and could be damaged by fatigue. Or the plugs not seated.
If you just went through that up top work I would carefully look at the plugs and wires for any issues there as that would prevent the alternate from working. Fords wires are that that heavy and could be damaged by fatigue. Or the plugs not seated.
Good point on checking the wires. I also am getting a #8 glow plug code. Might not have seated that back in properly.
Thanks. Where did you get the alternator. Do you have a part number?
Sorry I don't have it handy. I should be able to dig it up later.
I got the alternator at O'Rilies and the pulley on Ebay.
Originally Posted by jdw1
Yahiko,
Can you tell me if the G6 upper is the same physical size as the G6 single alternator?
Thanks
Pictures and I have some when I did this project.
Both fit on the stock mount pad without any mods.
But yes it is a bit larger as you can see sitting next
to the 110. It still fits in the space very well.
As you can see there is a bit more to it than the stock 110.
There is a lot of G6 and G3 info back in this thread, You can also
go to the smaller pulley and get more at idle.
Yesterday I started the truck and took up for a short trip
1/2 way along I noticed the ABS light on and my radio quit.
Radio started coming on/off and then the dash Batt light lit.
Scanguage is always on and indicated about 8V.
Did my current Alt just die? If so, I was about to order new one anyway
Sorry I don't have it handy. I should be able to dig it up later.
I got the alternator at O'Rilies and the pulley on Ebay.
Pictures and I have some when I did this project.
Both fit on the stock mount pad without any mods.
But yes it is a bit larger as you can see sitting next
to the 110. It still fits in the space very well.
As you can see there is a bit more to it than the stock 110.
There is a lot of G6 and G3 info back in this thread, You can also
go to the smaller pulley and get more at idle.
I'm running a large case 140 amp 6G on my 02 now for 6 years, (snow plow Trk, just installed new batteries after 7 years, believe it or not). I'm also running the same alternator on my wife's 05 for the past 3 years, both from Qwik Start (link below) with good service so far, I was just wondering if the upper 6G was a large case 140 or a small case 140, my 2000 Ex is soon to need an alternator and I'm just thinking ahead on my plan, I have looked at the 3G with the converter harness, I had a 97 F-350 7.3 with that G3 on it with good service also but I traded Trk's in 2002 so never got to see what the longevity of the G3 was, I'm fairly sure it's good. The other thing I've noticed looking at parts store availability, is the parts stores seemed to be more apt to have a 3G in stock than the G6 upper. Just something I've noticed fwiw when a replacement is needed on short notice.
That setup sounds great. Would really appreciate the p/n on the pulley. Definitely going to do that.
I'll post it later after I find it.
Originally Posted by jdw1
Thanks Yahiko,
I'm running a large case 140 amp 6G on my 02 now for 6 years, (snow plow Trk, just installed new batteries after 7 years, believe it or not). I'm also running the same alternator on my wife's 05 for the past 3 years, both from Qwik Start (link below) with good service so far, I was just wondering if the upper 6G was a large case 140 or a small case 140, my 2000 Ex is soon to need an alternator and I'm just thinking ahead on my plan, I have looked at the 3G with the converter harness, I had a 97 F-350 7.3 with that G3 on it with good service also but I traded Trk's in 2002 so never got to see what the longevity of the G3 was, I'm fairly sure it's good. The other thing I've noticed looking at parts store availability, is the parts stores seemed to be more apt to have a 3G in stock than the G6 upper. Just something I've noticed fwiw when a replacement is needed on short notice.
Knowing what I know now about it I think the 3G would be better. They had to order
the 6G and wait a day to get it in. Also have then test it before you take it. We found
2 dead ones in there shelf stock when I went in to get it replaced. Made in China what
do I expect. Not much any more.
Originally Posted by bsd
Yesterday I started the truck and took up for a short trip
1/2 way along I noticed the ABS light on and my radio quit.
Radio started coming on/off and then the dash Batt light lit.
Scanguage is always on and indicated about 8V.
Did my current Alt just die? If so, I was about to order new one anyway
Lets see the list is expensive.
Alternator - Needs replaced
Batteries - Charge and test, Replace is failed
FICM - Dammage can be caused by low voltage. Keep
an eye on FMP. You have stressed it a lot at 8.00 volts.
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