2nd bad alternator and DP questions

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Mar 12, 2008 | 11:34 AM

bandlgeorge

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From: Vancouver, Washington

2nd bad alternator and DP questions

Hello- My factory alternator went out December 2006 and then the reman I put in just went out yesterday. I am going to get another one under warranty. Any recommendations on size/type. The one reman I have was supposed to ba a factory replacement (1-2511-FD-1, whatever that means). I am planning on installing the warranty one myself and was wonering if there is any concerns for the DP chip while I do this aside from the regular process of disconnecting the batteries, etc to be careful of. Also, I only installed gauges and chip within the last 2 months, think there is any relationship between the failure of the alternator and the chip install? I did notice when the alternator started to go bad because I was "enjoying" the chip and I smelled the burnt smell of the alternator. Any help appreciated so I get the alternator correct this time. Anyone done the upgrade to a dual alternator setup and/or is that possible?

Mar 12, 2008 | 11:46 AM

Markadeck

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From: Charlotte-Fairbanks-Bflo

The chances of the DP being the source of your alternator problems are slim to none. Your alternator problem stems from using a rebuilt in the first place. This is a been there done that lesson that I will not repeat.

Mar 12, 2008 | 11:53 AM

jeff7825

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From: Knoxville, TN

Remanufactured is usually not the way to go as far as I have seen anyway. I wish you luck though. I would assume that your warranty is only good for another reman?

Mar 12, 2008 | 11:58 AM

PaysonPSD

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From: Payson, AZ

Quote:

Originally Posted by bandlgeorge

Anyone done the upgrade to a dual alternator setup and/or is that possible?

Here's some good advice posted by Neal (aka nlemerise) last month:

"I'm not certain, but I think the stock alternator puts out about 100 amps. So the dual setup would give you about 200 amps output. I'd just switch out the stock alternator for a 200 amp high output alternator, rather than go through all the hoops of installing a dual alternator setup. Oh, and the two alternators in the dual alternator setup are different alternators...they are not identical."

Mar 12, 2008 | 12:01 PM

Markadeck

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From: Charlotte-Fairbanks-Bflo

Quote:

Originally Posted by PaysonPSD

Not to mention they're a PITA to install and turn the simple CPS change into a major task. What in the world are you doing that you feel you need 2 alternator's to accomplish?

Mar 12, 2008 | 12:26 PM

deadeye01

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Just out of curiosity, where does that second alternator mount? And what is all involved in changing to two?

Mar 12, 2008 | 01:18 PM

bandlgeorge

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From: Vancouver, Washington

Quote:

Originally Posted by Markadeck

Not to mention they're a PITA to install and turn the simple CPS change into a major task. What in the world are you doing that you feel you need 2 alternator's to accomplish?

Honestly, just driving the truck. No towing, plowing. It's my daily driver that I plan on using in a couple of years to tow with. I was thinking maybe the dual setup if that would help prevent this down the road. It was not a reman as I thought. It wasn't motorcraft though, so that might be part of it. Sounds like the warranty won't be an issue, just don't want to do this every year. Thanks for the input guys. At this point I am planning on getting the warranty aftermarket new alternator. If it happens again and I'm out of warranty, maybe I'll go Motocraft. Hard to spend $. Didn't think 400 on an alternator when the factory one only lasted 4 years. Didn't think the DP was at fault, just seemed coincidental.

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Mar 12, 2008 | 03:48 PM

jeff7825

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From: Knoxville, TN

Quote:

Originally Posted by deadeye01

Just out of curiosity, where does that second alternator mount? And what is all involved in changing to two?

I'm pretty sure about the second alternator from the factory is on the passenger side at the bottom. There is a diagram on the radiator support if you want to look for yourself.

Mar 12, 2008 | 03:56 PM

#10

bdrummonds

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From: Millbrook Alabama

Brian, are you telling me that you spent 400 on an alternator? Did I read that correct?

I got a new(not reman) alternator from advanced auto for 180, and it has a lifetime warranty on it.

<TABLE class=tborder cellSpacing=1 cellPadding=4 width="100%" align=center border=0><TBODY><TR title="Post 5879108" vAlign=top><TD class=alt2>Just out of curiosity, where does that second alternator mount? And what is all involved in changing to two?</TD></TR><TR><TD class=thead colSpan=2>Today 12:01 PM</TD></TR></TBODY></TABLE>

the second alternator mounts below the AC compressor under the tensioner. it is not a simple swap, as there have to be alot of electronic swaps also. the main 130 amp alt. stays in place and the second is 65 amp IIRC. your PCM also has to be reflashed for a controller program.

Mar 12, 2008 | 04:42 PM

#11

PaysonPSD

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From: Payson, AZ

Here's a link Dan (Kwik) posted. You can get a single alt with the performance of two and it is a simple bolt on. There are other choices out there.

http://www.alternatorparts.com/Ford_...oke_Diesel.htm