Installed new battery and ...
Thread Starter
Le Mans Master
Joined: Feb 2009
Posts: 5,253
Likes: 9
From: Northwest CT
Installed new battery and ...
Now the Check Engine light is on.
It wasn't before.
Does anyone know how to correct?
Thanks
It wasn't before.Does anyone know how to correct?
Thanks
Last edited by Hammer99; Jun 23, 2015 at 11:27 AM. Reason: Oops...Dupe. Mods, please remove.
Drifting
Joined: Jun 2013
Posts: 1,291
Likes: 362
From: Iowa
Did you pull your codes? You should be able to clear codes and the light will go off if it's just a fluke. If there's something wrong the code/light will just come back.
Did you make sure the new battery was fully charged (should read 12.7-12.9v)? If not clear your codes and fully charge the battery and see if that fixes your issue. If your battery is too low it can throw all sorts of codes.
Did you make sure the new battery was fully charged (should read 12.7-12.9v)? If not clear your codes and fully charge the battery and see if that fixes your issue. If your battery is too low it can throw all sorts of codes.
Racer
Joined: May 2013
Posts: 454
Likes: 19
From: Prescott AZ
It does this if the battery is rated incorrectly if I remember what my electrical shop said. Apparently C5's like a particular amperage, cold cranking amps, etc to work right and not have lights on the dash.
Racer
Joined: May 2013
Posts: 454
Likes: 19
From: Prescott AZ
You're entitled to your opinion, 8vette7. But I'm repeating/relating what my Vette mechanic and my electrical & A/C repair guys have told me.
C5's have certain battery requirements and will display all kinds of goofy codes, or go nuts on readings if the wrong/undersized/undercharged. How do I know this?
Easy. Had the battery in my 99 C5 replaced. Started going haywire after I drove it home, multiple codes, lights going on & off, etc. Took it back, battery (brand new Delco GM) didn't pass tests, so my electrical repair shop replaced it with a higher amperage battery, also supposed to be compatible. That ones been in the car ever since with no issues.
Granted DIC codes are an indicator as well, but flashing lights, and "Check Engine" are other related symptoms of a bad or wrong battery.
C5's have certain battery requirements and will display all kinds of goofy codes, or go nuts on readings if the wrong/undersized/undercharged. How do I know this?
Easy. Had the battery in my 99 C5 replaced. Started going haywire after I drove it home, multiple codes, lights going on & off, etc. Took it back, battery (brand new Delco GM) didn't pass tests, so my electrical repair shop replaced it with a higher amperage battery, also supposed to be compatible. That ones been in the car ever since with no issues.
Granted DIC codes are an indicator as well, but flashing lights, and "Check Engine" are other related symptoms of a bad or wrong battery.
Drifting
Joined: Mar 2010
Posts: 1,628
Likes: 15
From: Seattle WA
You're entitled to your opinion, 8vette7. But I'm repeating/relating what my Vette mechanic and my electrical & A/C repair guys have told me.
C5's have certain battery requirements and will display all kinds of goofy codes, or go nuts on readings if the wrong/undersized/undercharged. How do I know this?
Easy. Had the battery in my 99 C5 replaced. Started going haywire after I drove it home, multiple codes, lights going on & off, etc. Took it back, battery (brand new Delco GM) didn't pass tests, so my electrical repair shop replaced it with a higher amperage battery, also supposed to be compatible. That ones been in the car ever since with no issues.
Granted DIC codes are an indicator as well, but flashing lights, and "Check Engine" are other related symptoms of a bad or wrong battery.
C5's have certain battery requirements and will display all kinds of goofy codes, or go nuts on readings if the wrong/undersized/undercharged. How do I know this?
Easy. Had the battery in my 99 C5 replaced. Started going haywire after I drove it home, multiple codes, lights going on & off, etc. Took it back, battery (brand new Delco GM) didn't pass tests, so my electrical repair shop replaced it with a higher amperage battery, also supposed to be compatible. That ones been in the car ever since with no issues.
Granted DIC codes are an indicator as well, but flashing lights, and "Check Engine" are other related symptoms of a bad or wrong battery.
Symptoms of the 'wrong' battery? Only if you decided to put a lawnmower battery in your C5 or something similarly incompatible. The C5 has electrical requirements greater than your average 1984 Honda Civic, but if you put a Civic battery in a 'Vette you wouldn't immediately get codes and flashing lights. Any fully charged car battery will provide the amps to start a C5 (and starting is really the only purpose of the battery). It's when the voltage starts to get low, after being left for a couple weeks, maybe with a car charger plugged in, that you'd have a problem. In those situations, the car will pull the battery voltage down too far when cranking and you'll have some of the computers reset themselves and cause codes.
I'm with Macleod52 on this one; verify the battery is topped up. They aren't always fully charged on the parts store shelf, depending on how long they've sat. If it is, you probably bought a bad battery and should have them do a load test, at which point it will likely fail and you'll get a free replacement.
