Alternator issues HELP

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Aug 1, 2020 | 01:28 PM

edwardgwright

Thread Starter

Heel & Toe

Joined: Aug 2013

Posts: 22

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Alternator issues HELP

Hey all the Alt in the car stopped charging. I bought a replacement from Auto Zone it charged for 3 minutes and then stopped charging! What am I missing here? Please help. its a 1992

Thanks
Edward

Last edited by edwardgwright; Aug 1, 2020 at 01:47 PM.

Aug 1, 2020 | 02:28 PM

89dd

Burning Brakes

Joined: Jul 2012

Posts: 890

Likes: 86

From: Poughkeepsie, NY

I replaced 3 AutoZone alternators in as many weeks on my old Blazer.
Remanded junk!
Bite the bullet, buy a new Power master and never look back.

Aug 1, 2020 | 07:05 PM

John S 1961

Melting Slicks

Joined: Jul 2004

Posts: 2,434

Likes: 307

From: Scottsdale AZ

I got an ac delco from amazon

Aug 1, 2020 | 08:12 PM

65Z01

Team Owner

Joined: Dec 2000

Posts: 90,675

Likes: 304

From: SE NY

Cruise-In II Veteran

Quote:

I got an ac delco from amazon

An AC Delco would be my choice too.

Aug 2, 2020 | 12:51 AM

WarlockIII

Racer

Joined: May 2020

Posts: 345

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From: New Jersey

Fully charge the battery and purchase a new alternator as stated above.

Aug 2, 2020 | 01:14 AM

Gunho

Racer

Joined: Feb 2015

Posts: 265

Likes: 19

From: Tampa FL

Check the plug at the bottom of the alternator. The plastic gets brittle and they fall apart keeping the three wires from making good contact. If the plug is bad, Auto zone carry’s replacements. Be careful when you swap the pins. You have to know how to take it apart. There’s a white plastic peace that slides out. Then you can remove the pins.

disconnect the battery before you do this. The plug tells the alternator to charge.

Last edited by Gunho; Aug 2, 2020 at 01:16 AM.

Aug 2, 2020 | 07:44 AM

CAB0820

Intermediate

Joined: Jan 2020

Posts: 41

Likes: 12

From: Austin, TX

I bought an ACDelco for my '89 and haven't had any issue at all - good product. Good idea to have the battery tested as well to make sure you're not trying to charge a corpse.

Good luck!