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

Bubba puzzler

Thread Tools
 
Search this Thread
 
Old Oct 14, 2018 | 03:34 PM
  #1  
DorianC3's Avatar
DorianC3
Thread Starter
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Nov 2017
Posts: 2,342
Likes: 517
Default Bubba puzzler

What was he trying to accomplish?

This is the harness to the rear lights. He tapped the brown wire (at least I think it’s brown) and connected it to the LPS spade on the fuse panel. Brown wire is power for lights.

Why ? what am I missing?



Reply
Old Oct 14, 2018 | 04:25 PM
  #2  
croaker's Avatar
croaker
Melting Slicks
15 Year Member
 
Joined: May 2006
Posts: 2,364
Likes: 103
From: Centerville Louisiana
Default

🤪Hot wire for radio

Last edited by croaker; Oct 14, 2018 at 04:26 PM.
Reply
Old Oct 14, 2018 | 05:22 PM
  #3  
stevedinino's Avatar
stevedinino
Racer
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2017
Posts: 271
Likes: 120
From: Rock Hill South Carolina
Default

Just a guess, but the LPS terminal is the instrument panel light circuit... if Bubba was popping parking lamp fuses, maybe he tried to power the parking lights from there?
Reply
Old Oct 14, 2018 | 07:30 PM
  #4  
Richard454's Avatar
Richard454
Le Mans Master
20 Year Member
Active Streak: 30 Days
Top Answer: 1
Top Answer: 3
 
Joined: May 2003
Posts: 8,874
Likes: 3,551
From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
Default

Originally Posted by stevedinino
Just a guess, but the LPS terminal is the instrument panel light circuit... if Bubba was popping parking lamp fuses, maybe he tried to power the parking lights from there?
I'm thinking he used the parking lights to power the instrument lights.

I bet you don't have any instrument lights now!!!

Richard
Reply
Old Oct 14, 2018 | 08:36 PM
  #5  
CA-Legal-Vette's Avatar
CA-Legal-Vette
Race Director
20 Year Member
All Eyes On Me
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 12,684
Likes: 329
From: Scottsdale Arizona
Default

Originally Posted by croaker
🤪Hot wire for radio
Maybe not hot, but the “night” circuit for the radio?
Reply
Old Oct 14, 2018 | 09:25 PM
  #6  
DorianC3's Avatar
DorianC3
Thread Starter
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Nov 2017
Posts: 2,342
Likes: 517
Default

There’s no telling if my instrument lights stopped working; my dash is completely removed. I knew there was some odd wiring work going on under the dash and wanted to go through it carefully.

The OEM harness looks in reasonable shape, but it had a few layers of Bubba added on to it.

From memory, I for sure have instrument lights. I just don’t recall if they are dimable. I don’t think they were.

is spade supposed to be vacant in OEM configuration? If not, where does it connect to?

Thanks!!


DC3
Reply
Old Oct 14, 2018 | 09:26 PM
  #7  
DorianC3's Avatar
DorianC3
Thread Starter
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Nov 2017
Posts: 2,342
Likes: 517
Default

Speaking of, the radio was very poorly wired... of course.

How does radio relate to this ?


Reply
Old Oct 14, 2018 | 11:40 PM
  #8  
CanadaGrant's Avatar
CanadaGrant
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
Default

Originally Posted by Richard454
I'm thinking he used the parking lights to power the instrument lights.

I bet you don't have any instrument lights now!!!

Richard
I wonder if the dimmer function in the light switch burned out resulting in no instrument lighting so he took a more "direct approach" rather than replacing the switch..

Last edited by CanadaGrant; Oct 14, 2018 at 11:44 PM.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Verdad Gallardo
story-2

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

 Joe Kucinski
story-3

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

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

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

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Oct 14, 2018 | 11:57 PM
  #9  
Richard454's Avatar
Richard454
Le Mans Master
20 Year Member
Active Streak: 30 Days
Top Answer: 1
Top Answer: 3
 
Joined: May 2003
Posts: 8,874
Likes: 3,551
From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
Default

Originally Posted by DorianC3
There’s no telling if my instrument lights stopped working; my dash is completely removed. I knew there was some odd wiring work going on under the dash and wanted to go through it carefully.

The OEM harness looks in reasonable shape, but it had a few layers of Bubba added on to it.

From memory, I for sure have instrument lights. I just don’t recall if they are dimable. I don’t think they were.

is spade supposed to be vacant in OEM configuration? If not, where does it connect to?

Thanks!!


DC3
Yep- nothing connected to it.

Originally Posted by DorianC3
Speaking of, the radio was very poorly wired... of course.

How does radio relate to this ?
I'm guessing sarcasm...

Originally Posted by CanadaGrant
I wonder if the dimmer function in the light switch burned out resulting in no instrument lighting so he took a more "direct approach" rather than replacing the switch..
Definitely a really DIRECT approach...branching off a 20A circuit to feed a 5A one...without a fuse... What could possibly go wrong???
Reply
Old Oct 15, 2018 | 02:05 AM
  #10  
DorianC3's Avatar
DorianC3
Thread Starter
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Nov 2017
Posts: 2,342
Likes: 517
Default

So let me get this straight. That spade (typically vacant) is used as an additional feed for instrument lighting... It is variable as from light switch potentiometer.

The feed to the actual instrument lights goes from the light switch vatirator, to the rear of the fuse panel, through a small glass tube fuse (presumably called “INST LPS”). After going through the fuse, varied power then goes both to that spade (as an auxiliary) and behind to feed instrument lights...

Bubba bypassed the fuse probably because the wrong-sized, not-fully-seated fuse was not reliable.

my guess is... he had the wrong fuse in there (too big to fit)




if that is the case, I’ll bet that fuse, not fully seated, was unreliable and he did this reverse workaround.

Last edited by DorianC3; Oct 15, 2018 at 02:22 AM.
Reply
Old Oct 15, 2018 | 09:55 AM
  #11  
Richard454's Avatar
Richard454
Le Mans Master
20 Year Member
Active Streak: 30 Days
Top Answer: 1
Top Answer: 3
 
Joined: May 2003
Posts: 8,874
Likes: 3,551
From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
Default

Great Bubba forensics!!!


WOW- what a long way around -instead of just getting the right size fuse!!!!
Reply
Old Oct 19, 2018 | 09:47 PM
  #12  
CA-Legal-Vette's Avatar
CA-Legal-Vette
Race Director
20 Year Member
All Eyes On Me
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 12,684
Likes: 329
From: Scottsdale Arizona
Default

Originally Posted by DorianC3
So let me get this straight. That spade (typically vacant) is used as an additional feed for instrument lighting... It is variable as from light switch potentiometer.

The feed to the actual instrument lights goes from the light switch vatirator, to the rear of the fuse panel, through a small glass tube fuse (presumably called “INST LPS”). After going through the fuse, varied power then goes both to that spade (as an auxiliary) and behind to feed instrument lights...

Bubba bypassed the fuse probably because the wrong-sized, not-fully-seated fuse was not reliable.

my guess is... he had the wrong fuse in there (too big to fit)




if that is the case, I’ll bet that fuse, not fully seated, was unreliable and he did this reverse workaround.
The level of corrosion and dirt in that fuse box is just unacceptable. You might just want to replace the wiring harnesses and be done with it. The fuse box comes with it.
Reply
Old Oct 20, 2018 | 01:08 AM
  #13  
lionelhutz's Avatar
lionelhutz
Race Director
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
Default

Seeing that fuse block I'd second getting a new harness. I've tried to fix things like that in the past and it's just not worth it. You can get it patched up and working, but it will just start to cause headaches again in the near future.
Reply
Old Oct 20, 2018 | 02:06 AM
  #14  
DorianC3's Avatar
DorianC3
Thread Starter
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Nov 2017
Posts: 2,342
Likes: 517
Default

Hmmmmmm - I def need to consider this. Especially now that everything is apart.
Reply

Get notified of new replies

To Bubba puzzler





All times are GMT -4. The time now is 03:26 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE