1996 Chevy Truck Battery Died, Alternetor dont keep truck r

Tiny
CHRISM878
  • MEMBER
  • 1996 CHEVROLET TRUCK
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 198,000 MILES
The other day I went out and my truck had no power, it was 100% dead, So I put in a battery from my girlfriends car and started the truck, and when I disconnected the battery the truck died. So I took my battery and alternator to Auto Zone and they tested both, and they both passed, the battery just needed to be charged. I came home and put the alternator back in the truck, hooked up the battery and started it, when I disconnected battery it died again, what could this be?

I also looked for inline fuse's and looked in the fuse box to see if the alternator had any sort of fuse but was unable to locate any.
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Saturday, December 12th, 2009 AT 8:19 PM

8 Replies

Tiny
RASMATAZ
  • MEMBER
Check gauges fuse no.4 10amp and charge indicator and wiring. Also check for battery voltage at alternator Batt terminal on the rear.


http://www.2carpros.com/forum/automotive_pictures/12900_alty1_22.jpg

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Saturday, December 12th, 2009 AT 10:17 PM
Tiny
CHRISM878
  • MEMBER
Thank you for the quick reply, is there a way to see a larger image of that, I cant really read it? Also do you mean the large wire running from the battery to the alternator is where I should check, do I do this when the truck is off, because right now I have my battery disconnected just incase something is draining it. And lastly, where would fuse #4 be, under the hood or on the side when I open the drivers door? I will be trying these things tomorrow, please confirm my questions. Thank you.
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Saturday, December 12th, 2009 AT 10:53 PM
Tiny
RASMATAZ
  • MEMBER
Connect the battery back up and take a reading behind the alty batt terminal you should have battery voltage there if not the fusible link in between is blown as for the no4 fuse its inside the instrument panel fuse block

Give me you email addy and I'll send it thru there
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Saturday, December 12th, 2009 AT 10:57 PM
Tiny
CHRISM878
  • MEMBER
Hello, Thank you. I will try these things tomorrow and let you know my results.

Thank you.
Chris
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Saturday, December 12th, 2009 AT 10:59 PM
Tiny
RASMATAZ
  • MEMBER
Try this:


http://www.2carpros.com/forum/automotive_pictures/12900_alty1_23.jpg




http://www.2carpros.com/forum/automotive_pictures/12900_alty2_14.jpg




http://www.2carpros.com/forum/automotive_pictures/12900_alty3_2.jpg




http://www.2carpros.com/forum/automotive_pictures/12900_alty4_1.jpg

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Sunday, December 13th, 2009 AT 12:41 AM
Tiny
CHRISM878
  • MEMBER
Hello,
Thank you for the info. I got your email with the picture but it was the same as the first one on here, but the new ones on here are much more clearer, I could not wait so I went out tonight and checked the #4 red 10amp fuse and it was fine. Then I looked at the wire coming from the battery to the alternator and its an orange wire that says "fuseable link" on it, and there seems to be a black thing in the middle of the wire that might hold a fuse, but im not sure, I took a picture of it and edited it and circled it for you to see. If this wire is the issue, do I need to replace the whole wire, or can a fuse be changed in there?

When you said fuseable link, I assumed it was a wire with a fuse in the middle of it that can be swapped out.

I was not able to do any electric test because I dont have a light tester or a meter, I will get one later on today when the stores are open.

So basicly my question is if I dont get a reading, and the fuseable link is bad, does the whole wire need to be replaced? It goes into a red harness (i also marked it on my photo) but im not sure where the other half goes to. I'll cross that bridge if I need to.

Thank you for the help so far! Greatly appreciated!
Chris
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Sunday, December 13th, 2009 AT 1:36 AM
Tiny
RASMATAZ
  • MEMBER
The fusible link is 4 wire guage smaller than the wire it protects-either you use 20ga in between or just get the fusible llink and splice in. How to check just get a test lite poke before and after the link the lite should lit both ways-if not it belongs in the trash

If the fusible link is okay start tracking the wire back to the charge indicator for open and short to ground

Wiring okay get the alternator recheck again-Good Luck
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Sunday, December 13th, 2009 AT 2:41 AM
Tiny
CHRISM878
  • MEMBER
Hello,
Here is an update.
I tested the fusible link wire by grounding the tester to the body of the truck, and putting the point on the nut that is on the alternator and it light up, so that tells me electricity is getting by the link.

I also tested the 10A fuse with the tester and it was ok.

I started the truck, the gage in the dash is straight up at 14volts.

Now this is where im confused. I removed the NEG wire from the battery and the truck stayed running, but I removed the POS and the truck stalled out. Does this say anything?

Also, Where is the charge indicator? You said follow the wire to it?

Thank you
Chris
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Sunday, December 13th, 2009 AT 8:12 PM

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