Battery ???
Thread Starter
Drifting
Joined: Mar 2005
Posts: 1,759
Likes: 69
From: Fayetteville Arkansas recently moved from Oakland Ca
St. Jude Donor '06
Battery ???
Lynda has a 2001 C5 with 12,500 original miles. She has owned for 8 months. The battery is 2 years old. Never had a problem. Battery was dead in morning. Had been driven day before. AAA jumped and said battery was okay but only had 4 volts when they had arrived. She drove the next day. All was ok. Two days later she drove to car show where she was in the "generation" display. Yesterday, which was 4 days after the jump, Vette started right up and she was driving when all kinds of electrical problems occurred. This included the ABS warning, radio and all types of warnings. Took to Chevrolet dealer. They found nothing wrong and cleared a few codes. She drove home with no problems.
Any ideas??
Tnank you
Any ideas??
Tnank you
Melting Slicks
Joined: Sep 2021
Posts: 2,555
Likes: 1,212
From: Temple Texas
Stop taking a 20+ year old car to 'the dealer' is the best idea. No one working there has likely ever worked on a C5. Contact your local Corvette club for recommendations.
If your battery repeatedly goes dead you can look for a parasitic draw:
The advice in this thread also applies.
If your battery repeatedly goes dead you can look for a parasitic draw:
The advice in this thread also applies.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,320
Likes: 3,927
From: Cape Coral, Florida
Lynda has a 2001 C5 with 12,500 original miles. She has owned for 8 months. The battery is 2 years old. Never had a problem. Battery was dead in morning. Had been driven day before. AAA jumped and said battery was okay but only had 4 volts when they had arrived. She drove the next day. All was ok. Two days later she drove to car show where she was in the "generation" display. Yesterday, which was 4 days after the jump, Vette started right up and she was driving when all kinds of electrical problems occurred. This included the ABS warning, radio and all types of warnings. Took to Chevrolet dealer. They found nothing wrong and cleared a few codes. She drove home with no problems.
Any ideas??
Tnank you
Any ideas??
Tnank you
Sounds like maybe a serial data bus issue…can’t help if it’s intermittent…dealers only replace parts…they don’t make money diagnosing and they wouldn’t know how to diagnose this anyway !!…what codes did they erase ??…should be on their RO…you may also have a parasitic drain.
Last edited by C5 Diag; Aug 27, 2024 at 11:23 AM.
Melting Slicks
Joined: Sep 2008
Posts: 3,117
Likes: 793
From: Espanola New Mexico
Very first thing is to remove battery and have it load tested at a local auto parts store. Second thing is to verify that the charging system is indeed charging the battery. And of course the third and final test is to insure that there is not a abnormally high sleep mode current drain.
Thread Starter
Drifting
Joined: Mar 2005
Posts: 1,759
Likes: 69
From: Fayetteville Arkansas recently moved from Oakland Ca
St. Jude Donor '06
Spoke with mechanic Car thru no codes and when they started it every thing was normal. I suggested to Lyn that we replace the battery which was my first reaction and others have suggested.herein. I've owned 10 Corvettes from C2 thru C7. As recall the C-5 consensus was to replace the battery when electric clitches started happening.
Thank you for your comments.
Thank you for your comments.
Tech Contributor
Joined: Jan 2007
Posts: 19,246
Likes: 1,095
From: Dyer, IN
Spoke with mechanic Car thru no codes and when they started it every thing was normal. I suggested to Lyn that we replace the battery which was my first reaction and others have suggested.herein. I've owned 10 Corvettes from C2 thru C7. As recall the C-5 consensus was to replace the battery when electric clitches started happening.
Thank you for your comments.
Thank you for your comments.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
2027 Corvette vs The World: Every Model vs Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer