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Posted: 8/11/2007 6:03:02 PM EDT
Link Posted: 8/11/2007 6:09:52 PM EDT
[#1]
My idea is go to the parts store and they will load check it and check out the alternator, etc. I think most of the area places should be set up to do this.
Link Posted: 8/11/2007 6:15:48 PM EDT
[#2]
I had somewhat of the same problem, its either the altenator or you could just have a short in the wiring to the altenator, mine ended up being a short in the wiring from the computer to the altenator telling it to "turn on/off".
Link Posted: 8/11/2007 6:17:48 PM EDT
[#3]

Quoted:
My idea is go to the parts store and they will load check it and check out the alternator, etc. I think most of the area places should be set up to do this.


If the voltage is fluctuating then it could be the regulator, usually when the alternator is bad it just puts out low voltage.  Like JAFO said bring it to the local parts store and have them load test the alternator.  I know AutoZone will do it.
Link Posted: 8/11/2007 6:18:15 PM EDT
[#4]
Link Posted: 8/11/2007 6:30:08 PM EDT
[#5]
Sounds like the alternator to me.  I agree with JAFO.  You should have it checked.
Link Posted: 8/11/2007 6:32:55 PM EDT
[#6]
might try cleaning the wiring connection from the battery to the alternator first.  That connection tends to corrode, shine it up with steel wool.   Mechanically the alternator usually doesn't die, it's the voltage regulator/diode or whatever it uses that goes out.
Link Posted: 8/11/2007 6:32:59 PM EDT
[#7]

Quoted:

Quoted:
My idea is go to the parts store and they will load check it and check out the alternator, etc. I think most of the area places should be set up to do this.


I thought was told to do that before I ever got home of that, can they do it while it's still in the truck?




Link Posted: 8/11/2007 6:47:59 PM EDT
[#8]
They can likely do it while it's in the truck but I have heard of some places that can't. Give them a call first instead of just driving there if you don't want to risk driving around on a non-charging system. Is there a B&B over in Seattle? I think there is one down in Burien. They usually had the best prices on things and always seemed to have a knowledgeable staff (at the Renton store).
Link Posted: 8/11/2007 10:35:00 PM EDT
[#9]
The flunky at the auto parts store may have less experience at diagnosing these kinds of things as you. Plus, he's in the business of selling you parts, so he's not exactly objective here.

Guessing is by far, the most expensive and time consuming method of repairing an automobile.

Diagnosis is by far, the least expensive and time consuming method of repairing an automobile.

PAY someone QUALIFIED to diagnose it. That excludes the auto parts store, the tire store, the muffler shop, the place you bought your sofa, the quick change oil place, and the gas station garage. The Ford dealer is probably your best bet.

Link Posted: 8/12/2007 5:44:47 AM EDT
[#10]
Link Posted: 8/12/2007 7:25:59 AM EDT
[#11]
Link Posted: 8/12/2007 9:03:23 AM EDT
[#12]

Quoted:

Quoted:
My idea is go to the parts store and they will load check it and check out the alternator, etc. I think most of the area places should be set up to do this.


I thought of that, can they do it while it's still in the truck?

Otherwise it will be remove the alternator (in a bit of a pita spot but it could be a lot worse) and walk the 3/4 mile to Schucks with it and then either back with a new one (which would save the return trip for the core charge).


Unless its oil or antifreeze you are after at Schucks, I would not plan on coming home with a new part from Schucks. Every time I go to my local Schucks store around the corrner I say "schucks" you don't have the part!! (they are currently the only close parts store) Now I need to go find a Napa. Schucks in IMHO is a chemicals store NOT an auto parts store not to mention if they do have the part it turns to shit with in a year.

Bottom line call ahead to see if they have the part.
Link Posted: 8/12/2007 9:29:00 AM EDT
[#13]
Link Posted: 8/12/2007 3:52:39 PM EDT
[#14]

Quoted:



ETA- does anyone know the proper torque value for the alternator mounting bolts?


good and tight.
Link Posted: 8/12/2007 5:09:34 PM EDT
[#15]

Quoted:

Quoted:



ETA- does anyone know the proper torque value for the alternator mounting bolts?


good and tight.


I was trying to think of how to say just a C*&% hair less than you think is too much in a PC manner but couldn't.

Do you really like new over rebuilt? I know back when I was last working on vehicles (1994 or so) the new stuff (non OEM) seemed to be lower quality case and everything and the rebuilds at least used good OEM cases with new brushes and armatures. Perhaps now Korea and China are kicking out better products with better QC and tolerances?

Actually for GM I would rather just get a brush kit and regulator for my own stuff since usually the armature is still good but the brushes and regulator are just worn.
Link Posted: 8/12/2007 9:01:56 PM EDT
[#16]
Phil, just a warning... I've had several Ford vehicles and the ones with alternator problems are the worst.  It looks like I read this too late, but do NOT get your alternator from Schucks.  Most are factory refurbished with cheap components and will burn out in 2-3 months.  Go someplace like Action Auto to get an alternator.  It might be a little more expensive (marginally) but the quality will be much better.

I've had 2 91 Ford Escorts, one of which went through 6 alternators in 6 months from Schucks, then I finally got one from Napa at a much higher cost and had no problems.  My second one had a battery that was dying.  They told me it was the alternator, so I changed it.  3 times.  I gave them the finger, went someplace else to find it was the battery.

I had an 85 F150 with a bad voltage regulator.  Schucks insisted it was an alternator.  I got one, zero improvement.  Returned for another one.  Zero improvement.  Returned it again and luckily I didn't give them my old one.  Threw it back in, went down the street to Action Auto, they tested it and found the regulator to be bad.  Changed it in the parking lot and no problems.

I've got a 91 Ranger with a 2.9L V-6 right now, and thankfully I haven't had any problems with the alternator on it.  

The point of this post:  Don't go to Schucks for electrical components or testing if you can avoid it.
Link Posted: 8/13/2007 9:55:11 AM EDT
[#17]
The discount auto parts stores seem bent on proving that there is nothing in life that cannot be done a little worse for a little less money.  It should be a red flag to you when house-brand discount auto parts are offered for sale with a "lifetime" warranty. You'll probably need it.  
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