Sounds Toyotaish to me.
alternator or battery???
Thread Starter
Instructor
Joined: Dec 2011
Posts: 135
Likes: 0
From: "Boston" Ma
alternator or battery???
2005 c6 alternator or battery my dash says check charging system what do you guys think
is there a up grade alternator i should buy
is there a up grade alternator i should buy
Last edited by REODAWG; Apr 5, 2012 at 08:46 PM.
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
The first thing to check is the battery. The C6 is very hard on batteries and it's usually the cause of most electrical problems. Have it load tested. That's the only way to find out if it's good. 
Pro
Joined: Mar 2011
Posts: 534
Likes: 33
From: Southern cali
Next check your solinoid as this is the most common part to trigger that warning.
Make sure you inspect the terminals carefully as it is common to find them burnt or melt. If this is the problem, do not take it to the dealer as they will try and sell you a whole new starter and feed you a line of bull that the solinoid cannot be replaced. It can and I did it for under twenty dollars. Also this is a real easy fix for the Do It Yourself crowd... The starter is really easy to drop and reinstall.
Make sure you inspect the terminals carefully as it is common to find them burnt or melt. If this is the problem, do not take it to the dealer as they will try and sell you a whole new starter and feed you a line of bull that the solinoid cannot be replaced. It can and I did it for under twenty dollars. Also this is a real easy fix for the Do It Yourself crowd... The starter is really easy to drop and reinstall.
Pro
Joined: Mar 2011
Posts: 534
Likes: 33
From: Southern cali
Also if I remember my specs correctly, the stock alternator is about 120 amp or so... Barely meeting the overall needs of the Vette. I upgraded mine to a 180 just to be on the safe side. Also, do not take it in to a shop for a swap ... It is in such an easy spot you can have in off and on in under 10 min.
Pro
Joined: Mar 2011
Posts: 534
Likes: 33
From: Southern cali
Ok to the best of my knowledge VVT is Most commonly found in Asian imports and a few euro cars. I think GM has a 6 cylinder model or two based on the VVT design.... But this is a corvette forum and the C6 corvette does not employ a 6 cylinder option.... I suggest you post in another forum and not hijack threads.
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Race Director
Joined: Aug 2005
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From: Hudson WI
NCM Sinkhole Donor
Ok to the best of my knowledge VVT is Most commonly found in Asian imports and a few euro cars. I think GM has a 6 cylinder model or two based on the VVT design.... But this is a corvette forum and the C6 corvette does not employ a 6 cylinder option.... I suggest you post in another forum and not hijack threads.
Have no idea what that has to do with the charging system......
Racer
Joined: Mar 2012
Posts: 420
Likes: 9
From: Bow New Hampshire
Somehow the thread got changed from charging system to vvt, Just thought I would reply to the vvt portion. Is there a "standard" size alternator that they install in the vettes or is it model related, my 05 has a 110 watt alt, and I suspect it is horribly undersized due to the electronics in the car. I would guess that changing to a 145 or larger would solve some of the battery problems that people are having.
2nd Gear
Joined: Apr 2012
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Instructor
Joined: Jun 2010
Posts: 160
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From: Spring Lake Michigan
I just changed to a new battery----day later same thing--Check charging system----my volts are--13.9--14.2-----?????
Intermediate
Joined: Aug 2008
Posts: 39
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From: Fairfield
The problerm I had with my 2005 was the connection point at the starter solinoid. That is a junction point between the alternator and the battery. The positive cable from the battery is connected to the solinoid and there is another cable that runs from the solinoid to the alternator. I just bypassed the starter and ran a 4ga cable from the alternator (be sure to remove and tape up the old charge cable from the alternator) and the battery, that fixed my problem. My alternator and battery were both fine. This could be your problem.
Good luck.
Good luck.
Melting Slicks
Joined: Nov 2013
Posts: 2,587
Likes: 70
From: Memphis Tn
The problerm I had with my 2005 was the connection point at the starter solinoid. That is a junction point between the alternator and the battery. The positive cable from the battery is connected to the solinoid and there is another cable that runs from the solinoid to the alternator. I just bypassed the starter and ran a 4ga cable from the alternator (be sure to remove and tape up the old charge cable from the alternator) and the battery, that fixed my problem. My alternator and battery were both fine. This could be your problem.
Good luck.
Good luck.
thanks
2nd Gear
Joined: Jan 2015
Posts: 2
Likes: 0
Believe it or not, one of the first checks is to see if your horn works. The same circuit which supplies alternator sensing voltage also powers the horns. For example, if one of the horns shorts it will blow the underhood 15A fuse and you will see exactly your condition. You then replace the fuse and all is well until you blow the horn which (because the horn is still shorted) blows the fuse again.
