SPONSORED LINKS

Alternator replacement

Tiny
CHEVYVANANT
  • MEMBER
  • 1984 CHEVROLET VAN
  • 5.0L
  • V8
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
Changing alternator, have battery completely disconnected. Tester light reveals power is coming from wires that connect to alternator. Not understanding where this power is coming from.
Wednesday, April 3rd, 2019 AT 2:08 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

Which wire has power? There are three wires. One from the battery, one from the cluster and one from the ignition.

There should be no voltage anywhere with both cables off the battery.

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, April 3rd, 2019 AT 3:18 PM
Tiny
CHEVYVANANT
  • MEMBER
  • 3 POSTS
Thanks for your response. Identified problem. It was an ironic mistake on our part. Had a couple solar chargers/jump start panels hooked up through cigarette lighter power lines and forgot about them. Duh! Anyway, they were keeping power going to the alternator lines. So, thanks again for your response.
Was this
answer
helpful?
Yes
No
Thursday, April 4th, 2019 AT 6:28 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
Was this
answer
helpful?
Yes
No
+1
Thursday, April 4th, 2019 AT 6:47 PM

Please login or register to post a reply.

Related Alternator Replace/Remove Content

Alternator Replacement
VIDEO
Alternator Replacement
Instructional repair video
Alternator Replacement
GUIDE
Alternator Replacement
Got a red battery warning light on? This most likely means the alternator has gone out and needs a replacement. To confirm the failure use a voltmeter to test the alternator...
VIEW MORE

Sponsored links