C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

86 no spark

Thread Tools
 
Search this Thread
 
Old Jan 16, 2025 | 12:53 PM
  #1  
Moonunit's Avatar
Moonunit
Thread Starter
Intermediate
 
Joined: May 2024
Posts: 28
Likes: 9
Default 86 no spark

Shop replaced my distributor (2,000 mi away). Apparently they didn’t tighten the rotor properly, car died. I replaced the coil pack, rotor and cap. Still no spark.

I’m having difficulty finding sufficient troubleshooting info. Should I replace the electronics module, ? could have been damaged. Feel a little silly but never dealt with anything like this.


Reply
Old Jan 16, 2025 | 11:44 PM
  #2  
AGENT 86's Avatar
AGENT 86
Team Owner
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Jan 2003
Posts: 20,324
Likes: 250
From: Summerland B.C. Canada
Default

Is there 12+ at pink wire going into cap ?
Are all 3 connectors to cap firmly plugged in ?


Reply
Old Jan 17, 2025 | 12:50 PM
  #3  
s carter's Avatar
s carter
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2014
Posts: 2,895
Likes: 592
From: New Port Richey FL
Default

Ok from the top you had a car that ran, rotor got loose car stopped.
You installed new cap, rotor and some parts, no spark but when you install the cap did you bring over the ground bridge under coil
Reply
Old Feb 5, 2025 | 12:52 PM
  #4  
Moonunit's Avatar
Moonunit
Thread Starter
Intermediate
 
Joined: May 2024
Posts: 28
Likes: 9
Default

Agent 86, I recognize you from twenty years ago when I built this thing. Unfortunately all my posts from back then are gone. The things you mentioned, all good.

Anyway thank you both for your replies. Of course life happened as soon as I posted, just getting back to this.

So it was the electronics module..just seems odd to me that this component is not mentioned anywhere I found trying to track the issue down. At any rate she fired right up but all kinds of ugly problems under load, probably still unkn electrical issues from mice chewing wiring under dash.

If anyone knows an electrical wizard in the San Antonio area I sure need one. I’m new to the area, but I couldn’t find anyone in Oregon in the Portland area.

Thanks very much for your replies!
Reply
Old Feb 5, 2025 | 05:36 PM
  #5  
RWDsmoke's Avatar
RWDsmoke
Drifting
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Jan 2005
Posts: 1,354
Likes: 325
From: San Antonio Tx
Default

Originally Posted by Moonunit
Agent 86, I recognize you from twenty years ago when I built this thing. Unfortunately all my posts from back then are gone. The things you mentioned, all good.

Anyway thank you both for your replies. Of course life happened as soon as I posted, just getting back to this.

So it was the electronics module..just seems odd to me that this component is not mentioned anywhere I found trying to track the issue down. At any rate she fired right up but all kinds of ugly problems under load, probably still unkn electrical issues from mice chewing wiring under dash.

If anyone knows an electrical wizard in the San Antonio area I sure need one. I’m new to the area, but I couldn’t find anyone in Oregon in the Portland area.

Thanks very much for your replies!
I don't consider myself a wizard but I have had my 86 for over 20 years and replaced almost everything on it. I live in the Converse area. I would be happy to meet you for coffee and help if I can. Send me a PM and we can exchange info.
Reply
Old Feb 5, 2025 | 06:57 PM
  #6  
Moonunit's Avatar
Moonunit
Thread Starter
Intermediate
 
Joined: May 2024
Posts: 28
Likes: 9
Default

Originally Posted by RWDsmoke
I don't consider myself a wizard but I have had my 86 for over 20 years and replaced almost everything on it. I live in the Converse area. I would be happy to meet you for coffee and help if I can. Send me a PM and we can exchange info.
Oh wow, my good fortune, will do. Thanks!
Reply
Old Mar 13, 2025 | 06:07 PM
  #7  
Moonunit's Avatar
Moonunit
Thread Starter
Intermediate
 
Joined: May 2024
Posts: 28
Likes: 9
Default Update

Originally Posted by RWDsmoke
I don't consider myself a wizard but I have had my 86 for over 20 years and replaced almost everything on it. I live in the Converse area. I would be happy to meet you for coffee and help if I can. Send me a PM and we can exchange info.
Well it was indeed my good fortune to receive this offer! RWDsmoke is nearby where I just moved to and so generously came to assist with electrical issues originally from mouse and repair shop damage. He came to assist me on several different occasions trying to track down various issues as they seemed come up one after another.

In the end he suggested changing the ignition system to the later small cap style. This was fantastic for me because with the Super Ram I had just a spaghetti mess with my plug wires. Now they’ll be infinitely better and easy to route without being up against the intake all the time looking to arc.

As he stated he has an 86 (96 front and rear I think) that he has pretty much rebuilt from the ground up. It’s beautiful under the hood with quite a motor and a gorgeous black paint job that he did as well. Great to meet and become friends with another enthusiast!

My car was not drivable, now it is once again thankfully and I owe it all to RDWsmoke! He certainly saved me untold cost and frustration trying to find someone to come up with a working solution.

Once again, thanks to the Corvette Forum
Reply
Old Mar 14, 2025 | 07:02 PM
  #8  
AGENT 86's Avatar
AGENT 86
Team Owner
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Jan 2003
Posts: 20,324
Likes: 250
From: Summerland B.C. Canada
Default

Awsome 👍👍
Reply

Get notified of new replies

To 86 no spark

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




All times are GMT -4. The time now is 04:00 PM.

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