Alternator-High Output at idle Please! - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Buick When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 07-27-2013, 10:03 PM   #11
certified crazy person
Certified GM nut
 
eltatertoto's Avatar
 
Join Date: Sep 2010
Location: hobart indiana (1 hr from chicago)
Posts: 1,871
Thanked 64 Times in 52 Posts
eltatertoto is a jewel in the rougheltatertoto is a jewel in the rougheltatertoto is a jewel in the rougheltatertoto is a jewel in the rough
Default

im not sure why your car has such a low voltage at idle. ive got a marine deep cycle yellow top optima in my car, but even before the optima my car got 13.5 volts at idle. even with my 2,000 watt amp pumping my 12" subwoofers at full tilt with the HID headlights on it only drops to 13.0. i would check your grounding points everywhere.


one thing that might be worth looking at is the battery. my old optima dropped a couple cells causing the voltage to drop all the way to 10.5 volts at times.
eltatertoto is offline   Reply With Quote
Old 07-27-2013, 11:52 PM   #12
Senior Member
True Car Nut
Thread Starter
 
Soft Ride's Avatar
 
Join Date: Jan 2012
Location: BC Canada
Posts: 3,588
Thanked 340 Times in 302 Posts
Soft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud of
Default

Jason I know the ALT that is in that car is crapola. Just having the fan on high with your foot on the brake,radio on, daytime running lights on, it droops to 12.5 pretty quick while stopped and counts backwards if u stay stopped with all the extra wattage from the increased tail brake bulbs back there.. If u step on the gas it jumps back up immediately to 14.3v+ and you can hear the fan pick up a bit with the extra voltage.
The Odyssey battery when new loadtested at 1319 CCA about 17 months ago. That being said because of the lower state of charge from this crap alt, I will manually charge the Odyssey before install, to ensure it gets some correct power back in there. I am well aware that not the greatest amount of power at times has been reaching the battery, however I am sure that after next week with the new high output ALT and new wiring (which includes a new larger ground wire to body) that all will be well again.
Then I will re test the Odyssey battery to see how it is doing under a load test again.
Soft Ride is offline   Reply With Quote
Old 07-28-2013, 10:32 PM   #13
Senior Member
True Car Nut
Thread Starter
 
Soft Ride's Avatar
 
Join Date: Jan 2012
Location: BC Canada
Posts: 3,588
Thanked 340 Times in 302 Posts
Soft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud of
Default

Today I installed The new wiring using the Old Alternator to see how it will work.

I also installed a thicker ground wire to inner fender.

I am getting about a half a volt more now with this wiring.
Had about 13v loaded going in with old alt. Next is to install the new alt...
I guess I will also have to do some re-programming as I had the battery disconnected for a while. I noticed that when I go into drive all the doors lock now and when I go into park they all open..ha..never seen that before! I guess it will be a re-learn to for transmission etc as I cleared the computer..
Attached Thumbnails
Alternator-High Output at idle Please!-thickerpositivefusewire_zps8ac83779.jpg   Alternator-High Output at idle Please!-thickergroundwire_zps123c6a86.jpg  
Soft Ride is offline   Reply With Quote
Old 07-29-2013, 03:41 PM   #14
Senior Member

True Car Nut
 
WilliamE's Avatar
 
Join Date: Jun 2011
Location: VA
Posts: 3,087
Thanked 418 Times in 376 Posts
WilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond repute
Default

Thick wiring ooks good, can't wait to see it with the new alternator in there!

The doors doing that should be a normal safety feature, whenever I go from park to drive the doors always lock, I can't remember if they unlock once I go back into park though, I want to say they do, but I'll have to see the next time I am in the car.
WilliamE is offline   Reply With Quote
Old 07-30-2013, 04:13 PM   #15
Senior Member
True Car Nut
Thread Starter
 
Soft Ride's Avatar
 
Join Date: Jan 2012
Location: BC Canada
Posts: 3,588
Thanked 340 Times in 302 Posts
Soft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud of
Default Quality Power- High Output ALT installed~!!

Ok without further a due.. Here it is installed!

Had to remove the bracket 3 different sized bolts, luckily with access to air tool.
Took about 15 to get old one off and 10 min to re-install, and then another 10min to get the PITA serpentine belt aligned to bottom pulley. One holds tensioner off, while person2 crawls under car to get that sucker back into the groves properly!! Good thing I did this in the early am outside cause the sun is hot..need a good drink now to celebrate & cool off!

Reports from Snap on at idle (only photo I took) too busy doing other stuff.

It works but....
It tested up loaded max @ 152 amps output..that is good...
BUT..I seem to have less voltage reading inside car even though I know the Digital voltage readings inside car are off. by .7 volt to 1 volt..Will re-test it in a few days using the snap on machine and really go though it with more pics.
My feeling is yes I have way more amps but not as much voltage as the stock ALT... wonder why that is?
Some formula may explain that...wattage etc stuff.
Attached Thumbnails
Alternator-High Output at idle Please!-altqualitypowerinstalled_zps1c205894.jpg   Alternator-High Output at idle Please!-alltampidle_zpsed5edea8.jpg  
Soft Ride is offline   Reply With Quote
Old 07-30-2013, 04:27 PM   #16
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

amps are what your alt puts out and what your devices use. well technically they consume power which is amps times volts. so same volts times more amps equals more power to feed your devices. you wouldnt want more volts that burns out power supplies in devices and bulbs.
jwfirebird is offline   Reply With Quote
Old 07-30-2013, 09:03 PM   #17
Senior Member
True Car Nut
Thread Starter
 
Soft Ride's Avatar
 
Join Date: Jan 2012
Location: BC Canada
Posts: 3,588
Thanked 340 Times in 302 Posts
Soft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud of
Default

Quality Power replied : The higher the amperage the lower the voltage.
They wanted to know what the amperage input was at what voltage.
I replied look at the photo I attached from Snap on Machine. 20 amps at 13.6 Volts will see what they say in next reply.
Further testing to come tonight to see if at idle I got more or less volts and what is going on.
Soft Ride is offline   Reply With Quote
Old 07-30-2013, 10:16 PM   #18
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,649
Thanked 1,001 Times in 777 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

It'* summer time. Get that darn cover off!!
Mike is online now   Reply With Quote
Old 07-30-2013, 10:27 PM   #19
Senior Member

True Car Nut
 
WilliamE's Avatar
 
Join Date: Jun 2011
Location: VA
Posts: 3,087
Thanked 418 Times in 376 Posts
WilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond reputeWilliamE has a reputation beyond repute
Default

Quote:
Originally Posted by Mike1995 View Post
It'* summer time. Get that darn cover off!!
Quoted for truth!
I have not put mine back on since doing the UIM/LIM, come to think of it I still need to put my splash guard back underneath.
I may put it back in the winter though, I am sure the rodent I have yet to be able to catch would enjoy another hiding spot.
WilliamE is offline   Reply With Quote
Old 07-31-2013, 02:00 AM   #20
Senior Member
True Car Nut
Thread Starter
 
Soft Ride's Avatar
 
Join Date: Jan 2012
Location: BC Canada
Posts: 3,588
Thanked 340 Times in 302 Posts
Soft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud of
Default Ya Mike Get that cover off~

I can see that with the cover off the engine etc might cool better.

But I thought it served as a BLAST shield for when your UIM'* Fail ~
Soft Ride is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
High output alternator/performance question BOLTO57 Performance, Brainstorming & Tuning 7 03-18-2010 11:50 PM
High Output Alternator - 4.6L Engine ddalder Everything Electrical & Electronic 6 12-03-2007 11:37 AM
High Output Alternator 96LeSabre Audio (and aftermarket electronics) 13 01-17-2006 09:51 PM
'00SSEi:rough idle,high idle...Please Help.... GTP2SSEi General GM Chat 2 07-29-2003 01:46 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 07:20 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.