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charging system help 7.3l

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Old Dec 21, 2007 | 09:04 PM
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GODZILLA-1
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charging system help 7.3l

My 2003 Excursion dropped the alt. and both batteries. I replaced both batteries and alt. checked good. 2 days later they were out again. Any hints on what it is?
Godzzila
 
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Old Dec 21, 2007 | 09:10 PM
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Not uncommon to pickup a new alt and have it turn out to be bad. Try to always by a new one form ford or autozone. It is important to have the parts store test it on the bench before you walk out the door. Regardless if it is a new one or rebuilt. I am betting that you got a bad replacement. Just take it back in and have them test it on the bench. If everything tests good start thinking elsewheres. Have you added anything new that is elctronic? Something may be causing your batts to draw dowm when ignition is shut off. Let us know what you find out.

Also, welcome to FTE. Stick around and you will be a master shade tree mechanic in no time.
 
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Old Dec 21, 2007 | 09:14 PM
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The bad alt. makes sense. This truck has not broken down once, and nothing has been added.
Thanks much, and merry Christmas.
 
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Old Dec 21, 2007 | 09:18 PM
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I would go with a bad alt. also. Have had that happened to me before on a 1996 f350 that I used to own.

Welcome to FTE
Floyd
 
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Old Dec 21, 2007 | 09:19 PM
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I would go with a bad alt. also. Have had that happened to me before on a 1996 f350 that I used to own.

Welcome to FTE
Floyd
 
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Old Dec 21, 2007 | 09:27 PM
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OK, ummmm, theres no easy way to say it, i guess i'll just go for the punch....

You're gonna need some 530 hybrid injectors, 200 amp alternator, 6" exhaust, and dual cold air intakes, twin turbos, and hopefully the only other thing is a programmer.
 
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Old Dec 21, 2007 | 09:59 PM
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Originally Posted by parkland
OK, ummmm, theres no easy way to say it, i guess i'll just go for the punch....

You're gonna need some 530 hybrid injectors, 200 amp alternator, 6" exhaust, and dual cold air intakes, twin turbos, and hopefully the only other thing is a programmer.
Yep, that'd do it, except then he would be asking about why his truck went through tires so fast.

Also check your GPR(glow plug relay) . and all fuses.

OBTW welcome to FTE.
 
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Old Dec 21, 2007 | 11:11 PM
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Also, check the electro fuseable discombobulator, and make sure the contacts are clean, and that the battery pump is running. You should here a faint "hummmm".




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I'm sorry.
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Old Dec 22, 2007 | 09:51 PM
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From: Millbrook Alabama
Originally Posted by parkland
Also, check the electro fuseable discombobulator, and make sure the contacts are clean, and that the battery pump is running. You should here a faint "hummmm".




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geez, man, go put some hydrogen in your tires and see if that takes any of the bumps outta the road



GODZILLA- did you recheck the alterantor? any luck.
 
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