Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Power loss...please help!!

Old Feb 27, 2003 | 03:02 PM
  #1  
OneQuickSS's Avatar
Thread Starter
Banned
 
Joined: Nov 2002
Posts: 877
Likes: 0
From: Texas
Default Power loss...please help!!

When Im really hammering it, throughout the gears, the car loses power around 5k rpm and then begins to climb back up again. I cant quite figure out what the problem is, but can someone give me suggestions on what it could be? Thanks and any help is much appreciated.
Reply
Old Feb 27, 2003 | 06:41 PM
  #2  
Z-Rated's Avatar
TECH Fanatic
 
Joined: Feb 2002
Posts: 1,782
Likes: 0
From: Friendswood TX
Default Re: Power loss...please help!!

b/c ur signature is way too descriptive. <img border="0" title="" alt="[Razz]" src="gr_images/icons/tongue.gif" />
It might be a bent pushrod, or something w/ the valve train. have u missed a lot of shifts, or missed one REALLY bad and over spun ur motor. you will find out whenever u finally put the cam in ur car b/c u can take a look at it. are u replacing the pushrods too w/ the cam swap?


Drew
Reply
Old Feb 27, 2003 | 08:46 PM
  #3  
OneQuickSS's Avatar
Thread Starter
Banned
 
Joined: Nov 2002
Posts: 877
Likes: 0
From: Texas
Default Re: Power loss...please help!!

I plan to change the springs, retainers, and pushrods when I install the cam. Im even thinking of waiting because Im leaning towards getting heads. I just dont want to be replacing my springs every 10k miles. I havent missed a shift since I got the car, but I know that I did alot when I first took it to the track because I had sucky hydraulics and a clutch system. But it never did it after I took it to the track. I just started noticing it not too long ago. If I did bend a pushrod when I missed those shifts, wouldnt I notice it right away? Thanks
Reply
Old Feb 27, 2003 | 09:14 PM
  #4  
Cal's Avatar
Cal
TECH Veteran
iTrader: (1)
 
Joined: Feb 2003
Posts: 4,691
Likes: 3
From: Northern Utah
Default Re: Power loss...please help!!

Could be a plugged fuel filter, a weak fuel pump, or bad gas just to give you a few more ideas. You might want get a scanner and see if you have any stored codes.
Reply
Old Feb 27, 2003 | 09:29 PM
  #5  
OneQuickSS's Avatar
Thread Starter
Banned
 
Joined: Nov 2002
Posts: 877
Likes: 0
From: Texas
Default Re: Power loss...please help!!

Where is the fuel pump and filter located and do they make performance ones? Would I need a performance fuel pump on an internal stock motor? Do they make a performance filter or just buy a new one from an auto part store? Thanks
Reply
Old Mar 7, 2003 | 10:34 AM
  #6  
OneQuickSS's Avatar
Thread Starter
Banned
 
Joined: Nov 2002
Posts: 877
Likes: 0
From: Texas
Default Re: Power loss...please help!!

Anyone know the answers to the questions I asked, thanks.
Reply
Old Mar 7, 2003 | 09:14 PM
  #7  
wrencher's Avatar
wrencher
20 Year Member
iTrader: (2)
 
Joined: Aug 2002
Posts: 4,762
Likes: 2
From: Chicagoland
Default Re: Power loss...please help!!

The fuel pump is inside the gas tank.The fuel filter is under car in fuel supply line & should be replaced every 30k . Your mods dont sound like you need to upgrade the pump.
Reply
Old Mar 8, 2003 | 02:42 PM
  #8  
Cool Z's Avatar
On The Tree
 
Joined: Nov 2001
Posts: 157
Likes: 0
From: DFW,TX
Default Re: Power loss...please help!!

I had a loss in power at 5500-5700 RPM's in most noticably 3rd and 4th gears. I installed LS6 valve springs, and that fixed the problem. Good luck.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Mar 8, 2003 | 02:48 PM
  #9  
Viper's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Dec 2001
Posts: 4,909
Likes: 3
From: Cleveland, OH
Default Re: Power loss...please help!!

Same here; busted spring syndrome. However, it does NOT rule out Cal said. Good luck.
Reply
Old Mar 8, 2003 | 03:15 PM
  #10  
OneQuickSS's Avatar
Thread Starter
Banned
 
Joined: Nov 2002
Posts: 877
Likes: 0
From: Texas
Default Re: Power loss...please help!!

I think that Im going to try the fuel filter thing first, should I replace it with one from an auto part store or a peformance one? Do they even make peformance fuel filters? Thanks. By the way, I do really notice it in 3rd and 4th, but now I can start to see it in 2nd too.
Reply
Old Mar 8, 2003 | 03:25 PM
  #11  
Viper's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Dec 2001
Posts: 4,909
Likes: 3
From: Cleveland, OH
Default Re: Power loss...please help!!

That's where mine was felt as well. Making it hard for the dealership to replicate!
Reply
Old Mar 9, 2003 | 11:41 PM
  #12  
Cool Z's Avatar
On The Tree
 
Joined: Nov 2001
Posts: 157
Likes: 0
From: DFW,TX
Default Re: Power loss...please help!!

If you're starting to feel it in second and it slowly came on intermittantly then became an every time occurance, that how it started on my car. At 7500 miles my valve springs were toast. I took it to the dealership and they said it was impossible for it to be the valve springs. Everything they did never fixed it. I did tho.
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 10:03 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE