Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

M6 Ls1 Driving me crazy

Thread Tools
 
Search this Thread
 
Old May 14, 2015 | 10:50 PM
  #1  
zrultima's Avatar
Thread Starter
TECH Apprentice
 
Joined: Aug 2008
Posts: 369
Likes: 0
From: Greensboro NC or Miami Fl
Default M6 Ls1 Driving me crazy

Ok guys on the external forums i had my fuel pump go out I had replaced it with a walbro unit ran great for a few weeks. I went to start it this morning and it started ran great then dies. I was low on fuel so i filled her up and same issue. NOW it idles and will die when put in first.... it stumbles and dies. Any help would be appreciated thank you
Reply
Old May 14, 2015 | 10:57 PM
  #2  
LS1MCSS's Avatar
TECH Junkie
iTrader: (18)
 
Joined: Jan 2006
Posts: 3,831
Likes: 8
From: Dover, Arkansas
Default

Where did you get the Walbro pump? If you got it off of ebay, it's most likely a Chineese knock off pump. They seldom last very long.
Reply
Old May 14, 2015 | 11:02 PM
  #3  
zrultima's Avatar
Thread Starter
TECH Apprentice
 
Joined: Aug 2008
Posts: 369
Likes: 0
From: Greensboro NC or Miami Fl
Default

I got it from amazon where i got it from walbro i order an extra one just ij case. But yes at first i could rev it up now it wont do that
Reply
Old May 15, 2015 | 05:49 AM
  #4  
zrultima's Avatar
Thread Starter
TECH Apprentice
 
Joined: Aug 2008
Posts: 369
Likes: 0
From: Greensboro NC or Miami Fl
Default

I checked the schraeder valve and gas spews out like crazy when pressed. When car is put into 1st it starts to stall and if i move it to neutral it comes back to life but if re'ed in neutral it will die
Reply
Old May 15, 2015 | 06:30 AM
  #5  
zrultima's Avatar
Thread Starter
TECH Apprentice
 
Joined: Aug 2008
Posts: 369
Likes: 0
From: Greensboro NC or Miami Fl
Default

Update checked all fuses everything good. Checked for codes none. One of the positve cables that goes to the fuse box is exposed a bit i guess from hitting the balancer will replace along with the alternator cable
Reply
Old May 15, 2015 | 06:52 AM
  #6  
N20zuki's Avatar
TECH Resident
 
Joined: Jun 2009
Posts: 856
Likes: 2
From: Elizabeth City NC
Default

Get a fuel pressure gauge and verify the fuel pressure.
Reply
Old May 15, 2015 | 07:41 AM
  #7  
zrultima's Avatar
Thread Starter
TECH Apprentice
 
Joined: Aug 2008
Posts: 369
Likes: 0
From: Greensboro NC or Miami Fl
Default

Well if i could find a screw in fuel pressure gauge in stock that would go onto the fuel rail that be great.
Reply
Old May 15, 2015 | 07:43 AM
  #8  
zrultima's Avatar
Thread Starter
TECH Apprentice
 
Joined: Aug 2008
Posts: 369
Likes: 0
From: Greensboro NC or Miami Fl
Default

I dosconnected the maf and it wouldnt even idle just to see if it was the issue
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old May 15, 2015 | 12:16 PM
  #9  
zrultima's Avatar
Thread Starter
TECH Apprentice
 
Joined: Aug 2008
Posts: 369
Likes: 0
From: Greensboro NC or Miami Fl
Default

Anyone know where i can get a fuel pressure gauge to screw on to the rail i ant to keep it on there for the future
Reply
Old May 15, 2015 | 07:34 PM
  #10  
zrultima's Avatar
Thread Starter
TECH Apprentice
 
Joined: Aug 2008
Posts: 369
Likes: 0
From: Greensboro NC or Miami Fl
Default

Ok guys I checked the pressure at the rail it was only about 20 psi so I guess I will be removing and replacing the fuel pump. Would the fuel pressure regulator affect flow
Reply
Old May 17, 2015 | 08:53 AM
  #11  
Ollie8974's Avatar
TECH Enthusiast
 
Joined: Jul 2010
Posts: 571
Likes: 0
Default

There's the problem Get rid of the pos rubber hose use the OEM nylon hose shown in the back ground .
Reply
Old May 17, 2015 | 10:21 AM
  #12  
zrultima's Avatar
Thread Starter
TECH Apprentice
 
Joined: Aug 2008
Posts: 369
Likes: 0
From: Greensboro NC or Miami Fl
Default

Well i hooked her back up and she priming no

w but wont start when i put the tank off i notice this broke off
Reply




All times are GMT -5. The time now is 01:06 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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