Any one had this problem before?
Thread Starter
Instructor
Joined: Jul 2010
Posts: 108
Likes: 0
From: Siloam Springs AR
Any one had this problem before?
Earlier this morn. I was told my Vette was in the parking lot and the alarm was going off. Well I don't have an aftermarket alarm just what came factory (no fob to set or disarm). I go out and the horn is honking but just as I get to it it stops. I start the car and it acts like the battery is weak so I let it run for about 10-15 min and go back in to work. When I leave for lunch it weakly starts again and as I'm driving the digital display flashes "SYS". Is this just a weak battery or is it something different, I also took the car home and put it on the charger. I would appreciate any help or ideas.
Drifting
Joined: Aug 2006
Posts: 1,624
Likes: 2
From: Canandaigua New York
Charge the battery back up and check it again.
If it discharges again with the alarm set, replace the battery.
A 'discharged' battery will not hurt the alternator. The alternator is designed to keep the battery 'charged' and if it's just a matter of the battery running down because the alarm is on for a long time, the alternator will recharge it when you drive.
A shorted cell, on the other hand, can blow the diodes in the alternator so have the battery tested just to be safe.
If it discharges again with the alarm set, replace the battery.
A 'discharged' battery will not hurt the alternator. The alternator is designed to keep the battery 'charged' and if it's just a matter of the battery running down because the alarm is on for a long time, the alternator will recharge it when you drive.
A shorted cell, on the other hand, can blow the diodes in the alternator so have the battery tested just to be safe.
Le Mans Master
Joined: Feb 1999
Posts: 6,470
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From: levittown pa. usa Even a bad day with my `Vette, is better than a good day at work
St. Jude Donor '10
I keep my Vettes on a trickle charger when I am not playing with them.
Intermediate
Joined: May 2010
Posts: 28
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I have a both problems but found them quickly, it also happened at night for some odd reason on my 91. It was my door sensor. It kicked the lights on in the car which set off the alarm them by time I got to the car ready to kick some thief booty the lights were off. Did it a couple times them found that my passenger door switch was going bad. I would also check your battery and alternator. Easy to do or can have auto parts place do it for free. .
Thread Starter
Instructor
Joined: Jul 2010
Posts: 108
Likes: 0
From: Siloam Springs AR
I have a both problems but found them quickly, it also happened at night for some odd reason on my 91. It was my door sensor. It kicked the lights on in the car which set off the alarm them by time I got to the car ready to kick some thief booty the lights were off. Did it a couple times them found that my passenger door switch was going bad. I would also check your battery and alternator. Easy to do or can have auto parts place do it for free. .
Cruising
Joined: Sep 2010
Posts: 14
Likes: 0
From: Philadelphia Pennsylvania
Hi. Just going through some of the threads on here and noticed yours. I would recommend checking the actual connections at the battery. Could be that one of the terminals is pulling out of the battery itself. I've seen it happen a few times. The connection is secure, but the post itself is coming out. Will cause intermittent problems. And if unchecked, can leasd to acid leaks that'll start eating everything up. Good Luck.
