alternator - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Everything Electrical & Electronic Have an electrical problem? Lighting, Alternators, gauges, DIC, HUD, etc? Post it here. Please post Audio problems in the Audio forum, and Engine control problems in the appropriate Mechanical forum for your year.

Reply
 
 
 
Thread Tools Search this Thread
Old 02-27-2005, 10:41 PM   #11
Senior Member
Posts like a Northstar
 
Join Date: Aug 2004
Location: Hawaii
Posts: 570
Thanks: 0
Thanked 0 Times in 0 Posts
dblack1 is on a distinguished road
Default

Quote:
Originally Posted by dblack1
u might wanna check that number with a volt meter.... if it is actually 18 volts u need a new voltage regulator, 18 volts can fry the electronics in ur car....
it sounds like the voltage regulator considering the dimming....
have u done this yet?
dblack1 is offline   Reply With Quote
Old 02-28-2005, 12:20 AM   #12
Senior Member
Posts like a Corvette
Thread Starter
 
Join Date: Jul 2004
Location: Winnipeg, Manitoba, Canada
Posts: 1,445
Thanks: 0
Thanked 0 Times in 0 Posts
captainmiller is on a distinguished road
Default

Quote:
Originally Posted by dblack1
Quote:
Originally Posted by dblack1
u might wanna check that number with a volt meter.... if it is actually 18 volts u need a new voltage regulator, 18 volts can fry the electronics in ur car....
it sounds like the voltage regulator considering the dimming....
have u done this yet?
Not yet...I don't have volt meter handy, but I am going to borrow one from a friend. Where do I put the two ends of the meter?
captainmiller is offline   Reply With Quote
Old 02-28-2005, 12:23 AM   #13
Senior Member
Certified Car Nut
 
Join Date: Oct 2003
Posts: 19,756
Thanks: 0
Thanked 0 Times in 0 Posts
1993 SLE is on a distinguished road
Default

on the battery posts, read the voltage with the car off, and read it while the car is running, at start up, and then a few minutes after
1993 SLE is offline   Reply With Quote
Old 03-16-2005, 08:58 PM   #14
Senior Member
Posts like a Corvette
Thread Starter
 
Join Date: Jul 2004
Location: Winnipeg, Manitoba, Canada
Posts: 1,445
Thanks: 0
Thanked 0 Times in 0 Posts
captainmiller is on a distinguished road
Default

Would this work in my car? I would take it that it a 140 amp since its from an SSEi. I won't pay more then $15-20 for it...just as more of a temporary fix.
captainmiller is offline   Reply With Quote
Old 03-16-2005, 09:54 PM   #15
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

That'* not the 140amp alt... That looks like my old 105, and my new 140 is bigger, and has a different fan.
BonneMeMN is offline   Reply With Quote
Old 03-16-2005, 10:06 PM   #16
Senior Member
Posts like a Corvette
Thread Starter
 
Join Date: Jul 2004
Location: Winnipeg, Manitoba, Canada
Posts: 1,445
Thanks: 0
Thanked 0 Times in 0 Posts
captainmiller is on a distinguished road
Default

Quote:
Originally Posted by BonneMeMN
That'* not the 140amp alt... That looks like my old 105, and my new 140 is bigger, and has a different fan.
My mistake. I thought all SSEi alts were 140amps from the factory. But none the less, it should fit in my '89, correct?
captainmiller is offline   Reply With Quote
Old 03-17-2005, 02:24 AM   #17
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

L67 and L27 are the same. Ln3 might be, but i can't say that without looking at them..
However L27'* are just an upgraded LN3, so it may be exactly the same.
BonneMeMN is offline   Reply With Quote
Old 03-20-2005, 09:06 PM   #18
Senior Member
True Car Nut
 
Join Date: Apr 2004
Location: Three Oaks, Michigan
Posts: 4,879
Thanks: 0
Thanked 0 Times in 0 Posts
opensourceguy is on a distinguished road
Default

Yes, they will work out just fine. Merlin 91/97 has a 140 in his '91 [LN3] from a 93 SSEi or something. Just may be a little tighter than normal.. but hey nothing that a little butter can't help with .


-justin
opensourceguy is offline   Reply With Quote
Old 03-26-2005, 04:11 PM   #19
Senior Member
Posts like a Corvette
Thread Starter
 
Join Date: Jul 2004
Location: Winnipeg, Manitoba, Canada
Posts: 1,445
Thanks: 0
Thanked 0 Times in 0 Posts
captainmiller is on a distinguished road
Default

Thanks, hopefully I can afford an alternator soon.

It was nice out today and I took some voltage readings, maybe you guys can tell me the health of my charging system.

With the car running, I got 14.4v (idle). I tried reading the voltage with the signal light on (the meter was going up and down in the car) but the reading from the battery posts didn't move.

In accessory or on positions I got 12.5v. With the car off, the reading was 13v. I then started the car, and shut it off. The reading was then 12.5v. I started it and shut it off again and it was back to 13v.

So what are your thoughts?

Thanks!
captainmiller is offline   Reply With Quote
Old 03-28-2005, 12:18 PM   #20
Senior Member
True Car Nut
 
Join Date: Sep 2002
Location: Chicago, IL
Posts: 2,409
Thanks: 0
Thanked 1 Time in 1 Post
acg_ssei is on a distinguished road
Default

Quote:
Originally Posted by captainmiller
In accessory or on positions I got 12.5v. With the car off, the reading was 13v. I then started the car, and shut it off. The reading was then 12.5v. I started it and shut it off again and it was back to 13v.

So what are your thoughts?
I don't think those numbers are all that unusual. If you were measuring _18_ volts at any time, I would yank the alternator immediately, but what you're measuring now is within normal range.

If you're seeing voltage fluctuations when driving at night, etc., I would definitely clean both ends of all battery cables, and any other common ground points where a number of circuits come together. A poor ground connection on one circuit can cause a reverse current flow seeking ground through the other devices that share the same connection point. It won't be all that noticeable unless or until the other devices come on as well, and then you've got a choke point when two (or more) hot circuits can no longer use each other as a ground path, and the intended ground connection is not good enough to support them. So go looking for cruddy or corroded battery cables and ground connections.
acg_ssei is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Whiney alternator - update - probably not the alternator vital49 2000-2005 11 02-05-2008 10:52 PM
Alternator problems! csprague 1992-1999 8 09-07-2004 12:51 AM
water pump and alternator pulleys? 95naSTA Performance, Brainstorming & Tuning 12 03-20-2003 11:51 PM
Another Alternator is shot. seanlight 1992-1999 8 03-07-2003 04:23 AM
Alternator Question. Scavanger 1992-1999 7 03-04-2003 06:45 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 03:01 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.