Alternator

Tiny
DKILDAL87
  • MEMBER
  • 2000 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 245,000 MILES
First time this had happened is when my girl friend was driving my truck home from work. She said she started it and as it ran the lights started to get really dim outside and inside. Then she said my gauges all went down and eventually the truck died. She got it jumped and drove and it died on her again. She got it jumped three times before she got it home. I figured it was the alternator so I replaced it. I put a good battery in there (not new) and new alternator and drove for about 1,000 miles. And now its doing the same thing as before. What is the problem?
Friday, June 24th, 2016 AT 9:51 AM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Did you do any testing before you replaced, anything? I am talking about using a digital multi-meter and checking wiring circuits for charging system and battery? The alternator, was it new or re-manufactured? Re-manufactured parts have a high failure rate right out of the box. I do realize a brand new part not re-manufactured can be pricey.
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Friday, June 24th, 2016 AT 10:26 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I forgot I was going to post this site link, "repair guides" at the top of page.

https://www.2carpros.com/articles/how-to-check-a-car-alternator
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Friday, June 24th, 2016 AT 10:27 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
This diagram is part of your charging system.
Image (Click to make bigger)
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Friday, June 24th, 2016 AT 10:36 AM

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