Charging system not working properly

Tiny
TERMITES47
  • MEMBER
  • 1998 CHEVROLET S-10
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
New alternator and seems to have good and clean connections, good battery not charging?
Monday, August 24th, 2020 AT 9:41 PM

2 Replies

Tiny
4DRTOM
  • MECHANIC
  • 467 POSTS
Hello,

It has to be a bad connection or the belt could be slipping. I've seen new alternators be fine at the store then not fine after installation. sometimes on the older cars the plug clip that snaps into the alternator breaks off and the plug doesn't seat the best make sure that is seated properly and snaps in. Is the battery light on?

This guide can help us test the alternator:

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Have you tested the alternator with a Volt Ohm Meter after it was installed on the car? I would check at the alternators positive lead as well as at the battery terminal just to make sure.

Tom
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Tuesday, August 25th, 2020 AT 12:37 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Yep, I would try a AC Delco unit. here is the alternator wiring and a guide on how to test it to make sure the connections are working:

https://www.2carpros.com/articles/how-to-check-wiring

BTW, I have seen the cluster go out causing this issue. Check out how to change it out.

https://youtu.be/_HEC44xENxw

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Thursday, August 27th, 2020 AT 9:34 AM

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