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

Electrical problem 69

Thread Tools
 
Search this Thread
 
Old Apr 19, 2015 | 12:54 PM
  #1  
Calo69's Avatar
Calo69
Thread Starter
Drifting
 
Joined: Sep 2014
Posts: 1,430
Likes: 59
From: Long beach NY
St. Jude Donor '15-'16, '18
Default Electrical problem 69

Hello,
Driving car died, found pos. lead on alt. came loose, connected , nothing.
Have 12 v at battery
12 v at horn relay
12 v at starter
12 v at alternator
Have no power at bat. Term. In fuse panel
Press horn relay just clicks
Checked fusible links at starter,horn relay, look ok
Any help greatly appreciated. Thanks in advance
Reply
Old Apr 19, 2015 | 03:41 PM
  #2  
wombvette's Avatar
wombvette
Le Mans Master
15 Year Member
 
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
Default

Originally Posted by Calo69
Hello,
Driving car died, found pos. lead on alt. came loose, connected , nothing.
Have 12 v at battery
12 v at horn relay
12 v at starter
12 v at alternator
Have no power at bat. Term. In fuse panel
Press horn relay just clicks
Checked fusible links at starter,horn relay, look ok
Any help greatly appreciated. Thanks in advance
Jump it or charge the battery. Its down.
Reply
Old Apr 19, 2015 | 05:38 PM
  #3  
Calo69's Avatar
Calo69
Thread Starter
Drifting
 
Joined: Sep 2014
Posts: 1,430
Likes: 59
From: Long beach NY
St. Jude Donor '15-'16, '18
Default

Originally Posted by wombvette
Jump it or charge the battery. Its down.
Thanks would not take jump, had 12V at fuse bat term, battery is good. Able to jump out starter sol. To get running, alternator charging 14V. Found questionable splice at neutral switch, not crazy about terminal connection on switch. Respliced car started, on off a few times then again nothing, going to recheck all of neutral connections tommorow.
If anyone can think of anything else I'm glad to hear them
Thanks
Reply
Old Apr 19, 2015 | 10:35 PM
  #4  
doorgunner's Avatar
doorgunner
2026 Loser of the Year
Supporting Member
10 Year Member
Veteran: Army
Photogenic
Photoriffic
 
Joined: Sep 2013
Posts: 36,573
Likes: 7,015
From: New Or-leens Loo-z-anna
Default

Originally Posted by Calo69
Hello,
Driving car died, found pos. lead on alt. came loose, connected , nothing.
Have 12 v at battery
12 v at horn relay
12 v at starter
12 v at alternator
Have no power at bat. Term. In fuse panel
Press horn relay just clicks
Checked fusible links at starter,horn relay, look ok
Any help greatly appreciated. Thanks in advance
Bear with my rookie questions:

The main wire that goes to the fuse block on the FIREWALL.....does it show at least 12 volts ENTERING THE BLOCK (you may have to probe the insulation on the wire near the block to get a reading on the voltmeter/be sure to put a dab of sealer over the puncture in the insulation when you remove the voltmeter probe to prevent corrosion in the wire).

If you have 12 volts at the spot where you probed the supply wire---there is a chance that there is corrosion BETWEEN the two HALVES of the fuse block---this prevents voltage from getting to some fuses and not getting full voltage. My '68 fuse block corroded internally---I was getting NO voltage at some fuse terminals and only 5 or 6 volts at other fuse terminals. The car would start one day and NOT start the next day.

If you have NO VOLTAGE at the probed spot, there is a broken/or corroded supply wire/failing fusible link/something wrong with the supply wire.
Reply
Old Apr 20, 2015 | 11:19 AM
  #5  
Calo69's Avatar
Calo69
Thread Starter
Drifting
 
Joined: Sep 2014
Posts: 1,430
Likes: 59
From: Long beach NY
St. Jude Donor '15-'16, '18
Default

Thanks Gunner,
I had rechecked bat. Term. At fuse panel and got 12 V (had a lousy ground on meter 1st time)
Think it's wiring connection at safety switch, I might have disturbed it between removing z bar and header installation. Had a previous splice there also.
Thanks
Reply

Get notified of new replies

To Electrical problem 69





All times are GMT -4. The time now is 03:10 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE