C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Amp gauge flutter?

Thread Tools
 
Search this Thread
 
Old Nov 24, 2002 | 09:03 AM
  #1  
Larry B.'s Avatar
Larry B.
Thread Starter
Le Mans Master
 
Joined: Sep 2000
Posts: 5,635
Likes: 4
From: Orlando Floriduh
Default Amp gauge flutter?

The amp gauge in my 69 flutters momentarily when any electrical load is applied such as power iwindows. I have had several c-3's that did this an never figured out why. Everything is fine and the gauge works perfect, it just gives a very quick flutter at first . Anyone else have this? :confused:
Reply
Old Nov 24, 2002 | 09:24 AM
  #2  
R1234's Avatar
R1234
Melting Slicks
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Dec 1999
Posts: 2,157
Likes: 0
From: Pensacola FLA
Default Re: Amp gauge flutter? (silvervetteman)

Hello,
My amp gauge flutters too. It seems to flutter it's worst on start up.


[Modified by 68rdstr, 8:24 AM 11/24/2002]
Reply
Old Nov 24, 2002 | 09:35 AM
  #3  
JB's Avatar
JB
Melting Slicks
 
Joined: Oct 2000
Posts: 3,023
Likes: 2
From: TEXASTEXASTEXASTEXAS TEXASTEXASTEXASTEXAS
St. Jude Contributor
Default Re: Amp gauge flutter? (68rdstr)

Gotta admit I wonder about this, too. The other night I turned on the headlights and it didn't just flutter, it pegged and then dropped immediately back to zero. Kinda made me worry about taking the car out.

JB
Reply
Old Nov 24, 2002 | 02:46 PM
  #4  
Larry B.'s Avatar
Larry B.
Thread Starter
Le Mans Master
 
Joined: Sep 2000
Posts: 5,635
Likes: 4
From: Orlando Floriduh
Default Re: Amp gauge flutter? (JB)

I had a 71 for 14 years.. It did NOT flutter for quite a few years and then oneday .... it just started fluttering. So I know that is not a normal thing. Maybe someone has the solution for us.
Reply
Old Nov 25, 2002 | 09:42 AM
  #5  
Surfer69's Avatar
Surfer69
Drifting
20 Year Member
 
Joined: Apr 2002
Posts: 1,720
Likes: 19
From: Manhattan Beach Ca
Default Re: Amp gauge flutter? (silvervetteman)

Mine started fluttering out of nowhere so doing a search the only suggestions are look for loose connection somewhere. Still, I tightened all connections and still flutters all the time.
Reply
Old Nov 25, 2002 | 12:18 PM
  #6  
HWY 9 - Z06's Avatar
HWY 9 - Z06
Advanced
20 Year Member
 
Joined: Jan 2002
Posts: 87
Likes: 0
From: BOULDER CREEK ca
Default Re: Amp gauge flutter? (silvervetteman)

double check your connections, my '69 did the same thing, only sometimes it would indicate a heavy charge(almost pegged) replace the alternator(twice) but no change. ended up being the large red wire leaving the 2-wire plug on the alternator had a hairline crack in the spade connector. which i did not see when i took the plug apart to clean connections. it drove me crazy for months, i must have cleaned every connection in the car. didnt figure it out till is just quit charging altogether and when i looked the hairline crack had bro9ken. replaced the spade connectors and the plug end and no more flutter. hope that helps.
Reply
Old Nov 25, 2002 | 12:34 PM
  #7  
ED DINAPOLI's Avatar
ED DINAPOLI
Drifting
Conversation Starter
All Eyes On Me
 
Joined: Nov 2000
Posts: 1,390
Likes: 39
From: North Brunswick NJ
Default Re: Amp gauge flutter? (silvervetteman)

Check the red wire at the the horn relay. I had a loose wire and it took me forever to find it. It started out as a fluxuation on the amp guage. Then it manifested itself int a intermitten powerloss at the radio. Then total failure.

Needed to get towed, which was embarrassing. I never had a car break down where I could not get it home to fix it.
Ed
Reply
Old Nov 25, 2002 | 05:08 PM
  #8  
Larry B.'s Avatar
Larry B.
Thread Starter
Le Mans Master
 
Joined: Sep 2000
Posts: 5,635
Likes: 4
From: Orlando Floriduh
Default Re: Amp gauge flutter? (ED DINAPOLI)

I've been pretty thorough in checking all of the connections. Th flutter is not a fluctuation, just a very momentary rapid flutter at the first touch of any switch. All else is fine. The 71 I had did that for years and I never located the problem.


[Modified by silvervetteman, 5:08 PM 11/25/2002]
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-1

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-2

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-3

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-4

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-5

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-6

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-7

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-8

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-9

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
Old Nov 26, 2002 | 12:27 AM
  #9  
micks69's Avatar
micks69
Burning Brakes
15 Year Member
 
Joined: Aug 2001
Posts: 1,160
Likes: 3
From: Greensboro NC
Default Re: Amp gauge flutter? (HWY 9 - '69)

double check your connections, my '69 did the same thing, only sometimes it would indicate a heavy charge(almost pegged) replace the alternator(twice) but no change. ended up being the large red wire leaving the 2-wire plug on the alternator had a hairline crack in the spade connector. which i did not see when i took the plug apart to clean connections. it drove me crazy for months, i must have cleaned every connection in the car. didnt figure it out till is just quit charging altogether and when i looked the hairline crack had bro9ken. replaced the spade connectors and the plug end and no more flutter. hope that helps.


Same exact thing here!
Reply
Old Nov 26, 2002 | 12:58 AM
  #10  
71vettman's Avatar
71vettman
Racer
10 Year Member
 
Joined: May 1999
Posts: 268
Likes: 1
From: CT
Default Re: Amp gauge flutter? (silvervetteman)

silvervettman: If your ammeter drops drastically and then goes back to zero only when you initally creat a draw from the battery I dont think you have a problem. I think its just showing that your battery is discharging for that split second before the alternator increases its current output to correct for the "new" draw from the battery.

Kevin
Reply
Old Nov 26, 2002 | 05:42 AM
  #11  
Larry B.'s Avatar
Larry B.
Thread Starter
Le Mans Master
 
Joined: Sep 2000
Posts: 5,635
Likes: 4
From: Orlando Floriduh
Default Re: Amp gauge flutter? (71vettman)

I don't think there is a problem, it is just that some cars do this and some don't. I had one that just started doing it one day. :confused:
Reply

Get notified of new replies

To Amp gauge flutter?





All times are GMT -4. The time now is 08:28 AM.

story-0
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-1
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-2
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-3
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-4
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-5
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-6
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-7
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-8
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-9
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE