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04-22-2009, 01:44 PM
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#1
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,896
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Charging Issue
Ok, LT1, stock alternator, and a CSR EWP.
When I am drving at night and or in the rain, the battery dies pretty bad.
The EWP is hooked up with a relay and what not, haven't added any aftermarket radio nonsense.
I drove from exit 105 to 88 and then back, and even after that, when I would idle the voltage would nose dive. IDK about other PCMs, but LT1s do not like low voltage, makes for horrible idleing.
Any ideas?
Maybe a dead alternator? The battery is newish, last summer brand new.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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04-22-2009, 04:07 PM
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#2
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Join Date: Jun 2007
Location: Arm pit of the world... NJ
Posts: 2,673
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How many volts is the alternator putting out at idle? with some rpm?
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John
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04-22-2009, 04:11 PM
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#3
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Stock pullies?
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04-22-2009, 05:28 PM
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#4
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,896
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Yea all stock pullies, and I only did a basic test of the alternator, found voltage on battery with engine off, and then with it on. Seems to be a difference of around a volt or two.
But idle is all over, usually around 600-700ish, but thats not a concern cause I drove a long time at 3k rpm and idled for no more than 5 minutes.
I could check the voltage output at differing rpm with a voltmeter correct?
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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04-22-2009, 06:01 PM
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#5
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Join Date: Jun 2007
Location: Arm pit of the world... NJ
Posts: 2,673
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Quote:
Originally Posted by Shownomercy
Yea all stock pullies, and I only did a basic test of the alternator, found voltage on battery with engine off, and then with it on. Seems to be a difference of around a volt or two.
But idle is all over, usually around 600-700ish, but thats not a concern cause I drove a long time at 3k rpm and idled for no more than 5 minutes.
I could check the voltage output at differing rpm with a voltmeter correct?
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Yes.
What voltage does the battery have with the car off?
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John
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04-22-2009, 06:02 PM
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#6
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,896
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Around 12.
I will try tonight when I get home if I can dig out my voltmeter.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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04-22-2009, 06:03 PM
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#7
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Join Date: Jun 2007
Location: Arm pit of the world... NJ
Posts: 2,673
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Should be about 13.5
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John
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04-22-2009, 06:06 PM
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#8
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,896
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I will check it again tonight.
I dunno whether a battery or alternator would be cheaper to replace.... Ugh/
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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04-28-2009, 02:21 AM
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#9
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Join Date: Aug 2005
Location: Lakewood
Posts: 452
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Quote:
Originally Posted by Featherburner
Should be about 13.5
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You must have one hell of a good battery. Mine reads between 11.5 and 12.0 with the car off. Is this a 93 or 94 LT1?.
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Last edited by Formulalt1; 04-28-2009 at 02:22 AM.
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04-28-2009, 06:55 AM
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#10
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,896
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My car is a 95.
And as posted in the other thread, I have like 14 at idle, 12 ish just battery
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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04-28-2009, 07:39 AM
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#11
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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maybe you have a bad cell since you don't HAVE A FUGGING MOUNT!!!! vibration kills batteries....
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04-28-2009, 08:33 AM
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#12
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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Quote:
Originally Posted by Formulalt1
You must have one hell of a good battery. Mine reads between 11.5 and 12.0 with the car off. Is this a 93 or 94 LT1?.
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At the battery? Then your battery is undercharged.
Shownomercy, I really think you need to go through that car and make sure every ground is good. Clean, star washers, etc.
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Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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04-28-2009, 10:08 AM
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#13
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Join Date: Aug 2005
Location: Lakewood
Posts: 452
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Quote:
Originally Posted by BonzoHansen
At the battery? Then your battery is undercharged.
Shownomercy, I really think you need to go through that car and make sure every ground is good. Clean, star washers, etc.
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I guess that is slightly on the low side but thats the reading I am getting on more than one battery. Volt meter might be slightly off. Generally the car running puts out like 14.5 on my car but I do have alot of extra electrical draws on mine.
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04-28-2009, 10:19 AM
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#14
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,896
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Yea, its on the list of things to check this weekend. I just refuse to believe it happened coincidentally at the same time the ABS went out... IDK. Electrical things were never my forte.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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