LT1/LT4 Tech 1993-1997

battery guage pulses

Thread Tools
 
Search this Thread
 
Old Jul 12, 2006 | 06:23 PM
  #1  
akohnz's Avatar
Thread Starter
|
In the Staging Lanes
Joined: Apr 2006
Posts: 95
From:
Default battery guage pulses

I noticed the other day when I was sitting a stop light and I had my vent on that my battery guage would drop down. I turned it off and it went back up but it pulsed, like moved up and down. what could be causing this to happen, maybe the alt? Thanks all


akohnz
 
Old Jul 12, 2006 | 07:51 PM
  #2  
z28pete's Avatar
Tech Droid
Joined: Aug 2005
Posts: 9,215
From: North East PA
Default RE: battery guage pulses

Were you using the signal lites at the time?
 
Old Jul 13, 2006 | 01:02 PM
  #3  
akohnz's Avatar
Thread Starter
|
In the Staging Lanes
Joined: Apr 2006
Posts: 95
From:
Default RE: battery guage pulses

Nope. I was on the highway yesterday, driving this time, and I put my windows up and turned on the just the vent and my battery needle went down. Then I turned the vent off and it went back up. My battery guage normally sits right above the middle white line, but when the vent or anything to do with the AC/heat until is turned on it drops to right below the white line. Thanks


akohnz
 
Old Jul 13, 2006 | 02:42 PM
  #4  
z28pete's Avatar
Tech Droid
Joined: Aug 2005
Posts: 9,215
From: North East PA
Default RE: battery guage pulses

May want to check the alternator, as you had mentioned, it could have a blown diode and it can't handle the load.
 
Old Jul 14, 2006 | 03:16 PM
  #5  
akohnz's Avatar
Thread Starter
|
In the Staging Lanes
Joined: Apr 2006
Posts: 95
From:
Default RE: battery guage pulses

Thanks for the reply Pete. Is there any way to check the alt to see if its bad? If the stock one is having hard time handling the load then should I upgrade to a higher amp?


akohnz
 
Old Jul 14, 2006 | 10:08 PM
  #6  
SickSickSick's Avatar
3rd Gear Member
Joined: Mar 2006
Posts: 925
From: Orange, Texas
Default RE: battery guage pulses

using a volt meter crank the engine and put the red lead on your positive battery post and black on the negative. it should read about 14 volts. less than 13 but more than 12 it's probably going bad. less than 12 it is dead. also auto zone will check it for free but, you will have to remove it. sick
 
Old Jul 18, 2006 | 06:31 PM
  #7  
akohnz's Avatar
Thread Starter
|
In the Staging Lanes
Joined: Apr 2006
Posts: 95
From:
Default RE: battery guage pulses

Its not the battery, it cant be I just replaced the thing about a year and half ago and the previous one had been in there for 3 years I had it since I bought the car from a private seller. I think the opti's goin out too, what do you think about the redesigned one that MSD put out???


akohnz
 
Old Jul 20, 2006 | 02:42 PM
  #8  
akohnz's Avatar
Thread Starter
|
In the Staging Lanes
Joined: Apr 2006
Posts: 95
From:
Default RE: battery guage pulses

So if I have both the alt and the opti going out which would be better to replace first?

akohnz
 
Old Jul 21, 2006 | 10:12 PM
  #9  
z28pete's Avatar
Tech Droid
Joined: Aug 2005
Posts: 9,215
From: North East PA
Default RE: battery guage pulses

If the alternator is bad, replace it first. An unsteady voltage can confuse the PCM & cause all sorts of gremlins.
 
Old Jul 25, 2006 | 03:43 PM
  #10  
akohnz's Avatar
Thread Starter
|
In the Staging Lanes
Joined: Apr 2006
Posts: 95
From:
Default RE: battery guage pulses

Thanks Pete. Do you or anyone else know about the new MSD redesigned distributor? Here is a link for the one I was looking at on the internet, its the silver one. I called them to confirm that it would fit, but I was just wondering if anyone else has tried this, is it junk? I have one of those unfortunate camaros that has a problem keeping a distributor, and I was looking to get something that would fix that problem. Thanks


http://www.jegs.com/webapp/wcs/store...tegoryId=25253


akohnz
 



All times are GMT -5. The time now is 01:14 AM.