Lights flare up when driving
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
One of two possibilities:
1. You have a major ground connection that has a "problem"...damaged/weak wire or connector;
2. The voltage regulator in your alternator is going bad.
There may be other possibilites, but that's what comes to mind.
1. You have a major ground connection that has a "problem"...damaged/weak wire or connector;
2. The voltage regulator in your alternator is going bad.
There may be other possibilites, but that's what comes to mind.
Thread Starter
Racer
Joined: Jan 2013
Posts: 287
Likes: 16
From: Florida New York
It's more random. I'm going to check the ground between the block and the frame . I did notice the volt gauge fluctuating when it happens. It even happens at a red light. I only had the parking lights on. The dash lights and the parking lights were dim then normal then bright. Thanks for your response.
Drifting
Joined: Sep 2010
Posts: 1,412
Likes: 50
From: Laguna Niguel California
Here's one more thing that I found and it took a while to locate. On the back of the alternator there is a clamp that holds the wire bundle for the alternator. Check the wire bundle under the clamp for chaffing through the insulation. I had exactly the behavior you describe.
Le Mans Master
Joined: May 2002
Posts: 5,086
Likes: 786
From: Lebanon Township New Jersey
I had the same problem recently. I noticed my volt gage readings were fluctuating widely too. I replaced the alternator (with its internal voltage regulator) and everything is good now.
