C6 Corvette General Discussion General C6 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by: Feral Industries

Batery cable replacement ls3

Thread Tools
 
Search this Thread
 
Old Jan 16, 2022 | 10:02 PM
  #1  
Jimmybevis's Avatar
Jimmybevis
Thread Starter
Advanced
Conversation Starter
All Eyes On Me
 
Joined: Jul 2021
Posts: 98
Likes: 4
From: Florence, Al.
Default Batery cable replacement ls3

I had a fuel pump go bad and had the dealer install a new one. They have had the car for over a week now for something they said would take about 8 hours. They now tell me the delay is they are waiting for parts, which I assumed had something to do with the new pump. Being tired or the run around I pressured them as to what "part" they were waiting for and they said the battery cable. I believe this is something I can purchase at any auto store unless I am missing something. I have read different things about what to use. One said a cable from the battery to the starter, another said the cable should have pigtails on the end, going to the starter, alternator and ground. Can anyone give me some advice what I need to buy with specifics such as gauge, etc?
Thanks
Reply
Old Jan 17, 2022 | 09:01 AM
  #2  
C6ToGo's Avatar
C6ToGo
Safety Car
15 Year Member
Top Answer: 1
Top Answer: 3
Top Answer: 5
 
Joined: Dec 2006
Posts: 4,590
Likes: 1,669
From: Pearland / Houston Tx
Default

Modern car battery cables are a little more involved than the ones sold at your local auto parts store.
Might check online GM parts suppliers. Search 20835504



Reply
Old Jan 17, 2022 | 10:18 AM
  #3  
frankz06_cf's Avatar
frankz06_cf
Instructor
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2006
Posts: 167
Likes: 11
From: Miami FL
Default

This part is out of stock all over the country. My dealer can't get it yet. It's made in China, so maybe when all those boats stuck off shore get to dock we'll be able to get it. If GM discontinued this part, that's going to be a problem!
Reply
Old Jan 17, 2022 | 11:21 AM
  #4  
C6ToGo's Avatar
C6ToGo
Safety Car
15 Year Member
Top Answer: 1
Top Answer: 3
Top Answer: 5
 
Joined: Dec 2006
Posts: 4,590
Likes: 1,669
From: Pearland / Houston Tx
Default

Did you search as suggested or rely solely on the word of your local dealer? There are DOZENS of sites that let you get to checkout with the order. Doesn't necessarily mean that it is in stock....but is a good start:

https://www.gmpartsstore.com/oem-par...bC12OC1nYXM%3D

https://sdparts.com/i-24098323-acdel...-20835504.html

https://www.gmpartsbin.com/p/Chevrol.../20835504.html

https://www.cheapestgmparts.com/oem-...cable-20835504

https://www.newgmparts.com/oem-parts...cable-20835504

Reply
Old Jan 17, 2022 | 11:50 AM
  #5  
FatsWaller's Avatar
FatsWaller
Safety Car
Conversation Starter
Photoriffic
Community Favorite
Top Answer: 5
 
Joined: Aug 2017
Posts: 4,929
Likes: 2,339
From: Etobicoke (Toronto) Ontario
Default

What does the battery cable have to do with replacing the fuel pump other than probably disconnecting it? Did the dealership somehow break it? Probably all it needs is to have the terminals on each end replaced.
Reply
Old Jan 17, 2022 | 02:04 PM
  #6  
Jimmybevis's Avatar
Jimmybevis
Thread Starter
Advanced
Conversation Starter
All Eyes On Me
 
Joined: Jul 2021
Posts: 98
Likes: 4
From: Florence, Al.
Default

The car has a slow drain it before and I told them to track down the cause of the short. They determined the drain was caused by the bad readings from the battery cable. Nothing to do with the pump. Thanks
Reply
Old Jan 17, 2022 | 02:05 PM
  #7  
Jimmybevis's Avatar
Jimmybevis
Thread Starter
Advanced
Conversation Starter
All Eyes On Me
 
Joined: Jul 2021
Posts: 98
Likes: 4
From: Florence, Al.
Default

Had already checked and replaced the terminals before taking it to the dealer. Thanks
Reply
Old Jan 17, 2022 | 03:27 PM
  #8  
AZ_DSOM's Avatar
AZ_DSOM
Racer
15 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Oct 2009
Posts: 288
Likes: 12
From: AZ
Default

OP, I just went through this myself a couple of months ago and 20835504 is the right cable...however it took me about 10 hours on the phone over the course of a week and $170 including shipping to find one in stock! The good news is it did solve my "my push, click, no start" issue.

Here is the link to my thread...I need to go back and update it with my results:

https://www.corvetteforum.com/forums...-question.html
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 Jan 17, 2022 | 09:46 PM
  #9  
dpigguy's Avatar
dpigguy
Safety Car
15 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Dec 2007
Posts: 4,974
Likes: 148
From: Magnolia Texas
Default

Originally Posted by Jimmybevis
The car has a slow drain it before and I told them to track down the cause of the short. They determined the drain was caused by the bad readings from the battery cable. Nothing to do with the pump. Thanks
Went through this with my ‘08. Connectors we’re all good but cable was corroded internally. Replaced and no drain since. Took my dealer 4 days to find one and that was before all the supply issues. Good luck in your search.
Reply
Old Jan 19, 2022 | 08:32 AM
  #10  
frankz06_cf's Avatar
frankz06_cf
Instructor
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2006
Posts: 167
Likes: 11
From: Miami FL
Default

@C6ToGo I called the SDPC - their website showed it in stock but when I called it wasn't. I'm going to follow up with the other links you included. Thanks for listing them. @AZ_DSOM where did you end up finding one? was it long ago?
Reply
Old Jan 19, 2022 | 03:15 PM
  #11  
AZ_DSOM's Avatar
AZ_DSOM
Racer
15 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Oct 2009
Posts: 288
Likes: 12
From: AZ
Default

Originally Posted by frankz06_cf
@C6ToGo I called the SDPC - their website showed it in stock but when I called it wasn't. I'm going to follow up with the other links you included. Thanks for listing them. @AZ_DSOM where did you end up finding one? was it long ago?
Think it was more a matter of luck that they had one on the shelf: Bradley Chevrolet, 711 N Lake Havasu Ave, Lake Havasu City, AZ 86403, (928) 208-4533
Reply
Old Jan 21, 2022 | 02:26 PM
  #12  
topkat75's Avatar
topkat75
Instructor
 
Joined: Dec 2021
Posts: 150
Likes: 19
From: Greensboro, n c
Default We is battery cable

How can I tell if the battery cable is defective/corroded internally, I have located one but want to know if old one is bad before I go at out $150.00 for a new one and not need it, thanks for any info. Topkat 75, I have had battery tested was good, replaced ign switch and ign relay, and had steering column lock removed, still just clicks above it every third day, keep poking it and it will finally start.
Reply
Old Jan 21, 2022 | 03:14 PM
  #13  
FatsWaller's Avatar
FatsWaller
Safety Car
Conversation Starter
Photoriffic
Community Favorite
Top Answer: 5
 
Joined: Aug 2017
Posts: 4,929
Likes: 2,339
From: Etobicoke (Toronto) Ontario
Default

Originally Posted by topkat75
How can I tell if the battery cable is defective/corroded internally, I have located one but want to know if old one is bad before I go at out $150.00 for a new one and not need it, thanks for any info. Topkat 75, I have had battery tested was good, replaced ign switch and ign relay, and had steering column lock removed, still just clicks above it every third day, keep poking it and it will finally start.
Measure the resistance in the cable and see if it lines up with the expected value as per the info here https://www.engineeringtoolbox.com/a...re-d_1429.html
Reply

Get notified of new replies

To Batery cable replacement ls3





All times are GMT -4. The time now is 10:28 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