Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Alternator Replacement

Thread Tools
 
Search this Thread
 
Old Oct 27, 2015 | 06:09 PM
  #1  
Project Bird's Avatar
Thread Starter
Staging Lane
 
Joined: Aug 2015
Posts: 64
Likes: 0
From: Columbia, SC
Default Alternator Replacement

So I blew the hose off of the bottom of the power steering reservoir and you guessed it, fluid went everywhere including in my alternator. It has been acting weird, sometimes it will act normal maybe a little bit of overcharging and then it will be a constant 18V on my gauge with the interior lights becoming super bright. I'm not driving it for long periods of time right now because I don't want to destroy this battery but I also want to see if it will dry out and go back to normal but will replace it this weekend if I need to.


Anyway I heard the parts store alternators for these cars suck but I also don't want to spend 400 bucks on a new alternator. Anyone have any suggestions?
Reply
Old Oct 27, 2015 | 06:49 PM
  #2  
ragtopz28's Avatar
TECH Addict
iTrader: (57)
 
Joined: Aug 2007
Posts: 2,014
Likes: 11
From: Ft. Myers, FL
Default

I just went through the same "what to do"...reman's suck, powermaster expensive and mixed reviews...I got a recommendation on a reputable local shop to go through/rehab mine, cost 40 bucks
Reply
Old Oct 27, 2015 | 07:19 PM
  #3  
Project Bird's Avatar
Thread Starter
Staging Lane
 
Joined: Aug 2015
Posts: 64
Likes: 0
From: Columbia, SC
Default

Amazon.com: ACDelco 335-1075 Professional Alternator: Automotive Amazon.com: ACDelco 335-1075 Professional Alternator: Automotive


Looks like this may be the way to go. delco and 50 bucks cheaper than parts store remans.
Reply
Old Oct 28, 2015 | 09:13 AM
  #4  
black535xi's Avatar
11 Second Club
10 Year Member
 
Joined: Mar 2015
Posts: 24
Likes: 0
Default

Originally Posted by Project Bird
Amazon.com: ACDelco 335-1075 Professional Alternator: Automotive


Looks like this may be the way to go. delco and 50 bucks cheaper than parts store remans.
Thank you for this. Been trying to figure out which one i want to buy, bc I've heard all the horror stories of the parts stores
Now, if i could just find a good write up on how to get the darn thing out of there
Reply
Old Oct 28, 2015 | 09:36 AM
  #5  
DANOZ28's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2006
Posts: 1,214
Likes: 0
From: MPLS MN
Default

if you do a thread search you'll see several people like the gm truck alt (aprox $135 & more amps) or i went with mechman aprox $200 sold at texas speed.
Reply
Old Oct 28, 2015 | 09:40 AM
  #6  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

I got a used DR-44 (truck alternator) I'd sell.

90$ shipped
Reply
Old Oct 28, 2015 | 10:36 AM
  #7  
black535xi's Avatar
11 Second Club
10 Year Member
 
Joined: Mar 2015
Posts: 24
Likes: 0
Default

Truck alt a direct replacement?
Reply
Old Oct 28, 2015 | 10:58 AM
  #8  
ragtopz28's Avatar
TECH Addict
iTrader: (57)
 
Joined: Aug 2007
Posts: 2,014
Likes: 11
From: Ft. Myers, FL
Default

Originally Posted by black535xi
Now, if i could just find a good write up on how to get the darn thing out of there
It's easy (if you have articulating sockets and two really long extensions for the back bolt, lol).
There are a couple of Youtube vids, but I could not get my hand back there with an end wrench.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Oct 28, 2015 | 11:07 AM
  #9  
black535xi's Avatar
11 Second Club
10 Year Member
 
Joined: Mar 2015
Posts: 24
Likes: 0
Default

I found a thread with some good pics. Looks like getting at it from under the car isn't a real big deal, and I've got plenty of extensions and swivels
Reply
Old Oct 28, 2015 | 05:21 PM
  #10  
X-ray's Avatar
TECH Enthusiast
iTrader: (6)
 
Joined: Apr 2010
Posts: 548
Likes: 1
From: Harrisburg, PA
Default

Originally Posted by black535xi
Truck alt a direct replacement?
Yep. I have a feeling you already found this thread, but just in case...

https://ls1tech.com/forums/generatio...failure-s.html
Reply
Old Oct 28, 2015 | 05:45 PM
  #11  
s7ven's Avatar
Launching!
 
Joined: Feb 2013
Posts: 270
Likes: 1
Default Alternator Replacement

Originally Posted by black535xi
I found a thread with some good pics. Looks like getting at it from under the car isn't a real big deal, and I've got plenty of extensions and swivels
Just make sure you disconnect the battery and also the single wire connector on top the alternator before removing the mounting bolts....ended up breaking mine.
Reply
Old Oct 28, 2015 | 07:14 PM
  #12  
ragtopz28's Avatar
TECH Addict
iTrader: (57)
 
Joined: Aug 2007
Posts: 2,014
Likes: 11
From: Ft. Myers, FL
Default

Originally Posted by s7ven
Just make sure you disconnect the battery and also the single wire connector on top the alternator before removing the mounting bolts....ended up breaking mine.
Good tip here...that is one tiny wire!
Reply
Old Oct 28, 2015 | 09:44 PM
  #13  
black535xi's Avatar
11 Second Club
10 Year Member
 
Joined: Mar 2015
Posts: 24
Likes: 0
Default

Originally Posted by X-ray
Yep. I have a feeling you already found this thread, but just in case...

https://ls1tech.com/forums/generatio...failure-s.html
Yep, that's the one...

And I've read that the little wire is super fragile... and I'm not exactly known for finesse
Reply
Old Oct 29, 2015 | 07:06 AM
  #14  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by black535xi
Truck alt a direct replacement?
Yes. And fixes charging issues many have.
Reply
Old Oct 29, 2015 | 07:41 AM
  #15  
black535xi's Avatar
11 Second Club
10 Year Member
 
Joined: Mar 2015
Posts: 24
Likes: 0
Default

I never had any charging issues, but my car has burned up a couple fuel pump relays, and had some strange intermittent stuff this year. I just bought the thing in April, so i just assumed there's probably some kind of upgraded fuel pump without the necessary wiring to accompany it... now I'm wondering if the alt was on its way out and had some voltage spikes or something to eat those relays?
Reply
Old Oct 29, 2015 | 10:06 AM
  #16  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by black535xi
I never had any charging issues, but my car has burned up a couple fuel pump relays, and had some strange intermittent stuff this year. I just bought the thing in April, so i just assumed there's probably some kind of upgraded fuel pump without the necessary wiring to accompany it... now I'm wondering if the alt was on its way out and had some voltage spikes or something to eat those relays?
Possibly, electrical is no fun at all.
Most people upgrade to a Walbro pump. I'm running dual 450s. The most common is a single 255 for lower power guys. They also have a 340.
Reply
Old Oct 29, 2015 | 12:15 PM
  #17  
black535xi's Avatar
11 Second Club
10 Year Member
 
Joined: Mar 2015
Posts: 24
Likes: 0
Default

Originally Posted by lemons12
Possibly, electrical is no fun at all.
Most people upgrade to a Walbro pump. I'm running dual 450s. The most common is a single 255 for lower power guys. They also have a 340.
It's weird bc it'll just cut out going down the road, and at one point even died and had to be towed home. Couple hundred $ worth of diagnostic labor and we tried a relay just to see and problem solved. I bought this car from a forum member and he had a whole spreadsheet of the upgraded parts, but wasn't sure on the fuel pump... it's like 415 rwhp and he had time slips to back it up plus the n2o, so i doubt it's a stock pump with all the other high dollar stuff that's on it
Reply
Old Oct 29, 2015 | 03:17 PM
  #18  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by black535xi
It's weird bc it'll just cut out going down the road, and at one point even died and had to be towed home. Couple hundred $ worth of diagnostic labor and we tried a relay just to see and problem solved. I bought this car from a forum member and he had a whole spreadsheet of the upgraded parts, but wasn't sure on the fuel pump... it's like 415 rwhp and he had time slips to back it up plus the n2o, so i doubt it's a stock pump with all the other high dollar stuff that's on it
My buddy had a stock fuel pump in his car for a little while.....

451 LSX block, mast intake, powerglide, Fab9, full suspension, etc etc etc...

I wouldn't be 100% on that. LOL
Reply
Old Oct 29, 2015 | 03:47 PM
  #19  
black535xi's Avatar
11 Second Club
10 Year Member
 
Joined: Mar 2015
Posts: 24
Likes: 0
Default

Well, I'll find out whenever i get into this turbo build. Probably gonna go with lonnies twin setup

BUT... first thing i gotta do is get the alternator replaced so it can move under its own power ��
Reply




All times are GMT -5. The time now is 05:21 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE