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

1980

Thread Tools
 
Search this Thread
 
Old Sep 2, 2016 | 11:59 PM
  #1  
Al Mc's Avatar
Al Mc
Thread Starter
Instructor
10 Year Member
 
Joined: Mar 2005
Posts: 166
Likes: 0
From: Byhalia MS
Default 1980

Problems with not starting. I just recently bought an 80 L48 with under 40K original miles. The car is all original. Problem is that at times it won't start. It will go 10 or more times and start with no problem. Every once in a while I turn the key and get nothing. Not a click, not a whine, nothing. The battery tests at 12+ volts. All of the gauges register. If I put a charger on it, it will jump start with no problem. Goes another 10 times or so and I have the same problem. Nothing. Any thoughts or suggestions will be greatly appreciated.

thanks Al
Reply
Old Sep 3, 2016 | 12:25 AM
  #2  
Shark Racer's Avatar
Shark Racer
Race Director
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
Default

Are those "times" after you've been driving for a while?
Reply
Old Sep 3, 2016 | 09:10 AM
  #3  
Easy Mike's Avatar
Easy Mike
Team Owner
Supporting Lifetime
20 Year Member
 
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
Default

Have you cleaned the battery cables and have a clean ground on the frame?
Reply
Old Sep 3, 2016 | 09:43 AM
  #4  
BKbroiler's Avatar
BKbroiler
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2002
Posts: 5,086
Likes: 786
From: Lebanon Township New Jersey
Default

Probably a grounding issue. Check the engine block to frame ground (should be on the passenger side of the block - look from below). Battery negative cable connection to frame is the other.
Reply
Old Sep 3, 2016 | 09:57 AM
  #5  
Al Mc's Avatar
Al Mc
Thread Starter
Instructor
10 Year Member
 
Joined: Mar 2005
Posts: 166
Likes: 0
From: Byhalia MS
Default

Originally Posted by BKbroiler
Probably a grounding issue. Check the engine block to frame ground (should be on the passenger side of the block - look from below). Battery negative cable connection to frame is the other.
The times when it won't start are random. Mostly when sitting in the garage and being started for some reason. I've only had the car about a month but this has happened numerous times. Battery cables are clean and tight with no corrosion. I will look at the two grounding issues.

thanks Al
Reply
Old Sep 3, 2016 | 10:28 AM
  #6  
BKbroiler's Avatar
BKbroiler
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2002
Posts: 5,086
Likes: 786
From: Lebanon Township New Jersey
Default

Originally Posted by Al Mc
The times when it won't start are random. Mostly when sitting in the garage and being started for some reason. I've only had the car about a month but this has happened numerous times. Battery cables are clean and tight with no corrosion. I will look at the two grounding issues.

thanks Al
I had a similar, random problem with my 77, years ago. Turns out it was missing the engine to frame ground cable completely.
Reply
Old Sep 3, 2016 | 01:15 PM
  #7  
doctorgene's Avatar
doctorgene
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jul 2007
Posts: 1,889
Likes: 23
From: Kansas
Default

Yes Sir; I had a 1980 with that problem, Ground cable was made out of copper coated Aluminum. It didn't look that bad until we removed it to replace. Good Luck
Reply
Old Sep 3, 2016 | 03:52 PM
  #8  
terry82's Avatar
terry82
Le Mans Master
25 Year Member
 
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
Default

something I would check .There is a connection behind the passenger side motor head.it has 4-5 electrical wires that goes down do the starter .that connection goes bad.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

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

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

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

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo
Old Sep 3, 2016 | 09:27 PM
  #9  
procketus's Avatar
procketus
Burning Brakes
15 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Sep 2009
Posts: 1,003
Likes: 48
From: hickory NC
C4 of Year Finalist (appearance mods) 2019
2017 C4 of Year Finalist
Default

Originally Posted by terry82
something I would check .There is a connection behind the passenger side motor head.it has 4-5 electrical wires that goes down do the starter .that connection goes bad.
That's what happened to mine. Drove me nuts for a couple months until I found out about that plug.
Reply
Old Sep 3, 2016 | 11:42 PM
  #10  
Al Mc's Avatar
Al Mc
Thread Starter
Instructor
10 Year Member
 
Joined: Mar 2005
Posts: 166
Likes: 0
From: Byhalia MS
Default

Thanks so much to everyone. I am going to start checking all of those grounding issues tomorrow. However, My concern about it being a grounding issue is that during the times that it won't start, everything works.....gauges register, blower motor blows, horn works, etc. If it were grounding would everything work.

thanks Al
Reply
Old Sep 7, 2016 | 09:47 AM
  #11  
DaveL82's Avatar
DaveL82
Drifting
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jul 1999
Posts: 1,542
Likes: 43
From: Plano TX
Default

Check all connections to make sure they're clean and the ground for the engine as other's have mentioned. The other issue with the 80 is the connector by the distributor that supplies the start connection to the starter. These get old and dirty and at some point will fail completely. I ended up cutting the connector out and gripping/soldering the connections.

Your starter switch may not be able to supply enough current to the solenoid. I wired in a relay so the starter switch energizes the relay and then use the relay to connect battery power to the solenoid start connection. No more problems after 25 years on my car.
Reply

Get notified of new replies

To 1980





All times are GMT -4. The time now is 04:18 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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