Bouncing Voltage Needle - Why?
Thread Starter
Pro
Joined: Apr 2006
Posts: 637
Likes: 2
From: Worthington Ohio
Bouncing Voltage Needle - Why?
My voltage meter bounces wildly when I hit the brakes, turn on the turn signal, etc. I don't remember it doing this when I first got the car. Since then, I have replaced the voltage regulator for a separate reason. Is there something else I should be checking?
Safety Car
Joined: Jun 2003
Posts: 3,596
Likes: 8
From: Grosse Ile MI
Originally Posted by 67BETE
My voltage meter bounces wildly when I hit the brakes, turn on the turn signal, etc. I don't remember it doing this when I first got the car. Since then, I have replaced the voltage regulator for a separate reason. Is there something else I should be checking?
Le Mans Master
Joined: Jul 2003
Posts: 6,808
Likes: 24
From: Westport CT
could also be a ground problem somewhere. Rule this out by jumping a wire from the neg post on the alt to the base of the volt reg, if it then gets steady, mkae it a permanent connection until you have rechecked all the grounds.
Melting Slicks
Joined: Oct 2005
Posts: 3,073
Likes: 3
From: New Jersey. The deer ate my Garden State.
I agree. It maybe a ground problem. My gauge was bouncing everytime I hit a bump. I took everything apart and cleaned the connections and it solved the problem.
2nd Gear
Joined: Sep 2006
Posts: 2
Likes: 0
bouncing needle
There are a number of capacitors added thru-out the wiring in a mid year vette. The brake switch has one the ignition switch has one and also the radio and instruments.
Check them all for grounding. There is also a black wire attached to a ground lug at the top of the instrument cluster. it is visible when you remove all the screws.
check your aim book for details on the wiring scheme.
good luck.
