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

Help! fuel problems/Gas in oil

Thread Tools
 
Search this Thread
 
Old Mar 29, 2014 | 05:34 PM
  #1  
Palomows6's Avatar
Thread Starter
Teching In
 
Joined: Apr 2012
Posts: 8
Likes: 0
Default Help! fuel problems/Gas in oil

Hello guys, I'm stuck with this thing! I have spark and Fuel. Pressure does drop rapidly with the key on. All sparkplugs are wet and there's gas in the oil. I'm thinking fuel injectors but what would cause all of them to leak? Any help is appreciated.
Reply
Old Mar 29, 2014 | 05:44 PM
  #2  
Undertow74's Avatar
TECH Fanatic
15 Year Member
iTrader: (45)
 
Joined: Oct 2007
Posts: 1,284
Likes: 13
From: South Carolina
Default

How is your engine oil level? If you are always adding oil you might have bad rings and that would cause excess fuel in the oil. Another possibility is that the fuel regulator is stuck open or an injector.......
Reply
Old Mar 29, 2014 | 06:12 PM
  #3  
Palomows6's Avatar
Thread Starter
Teching In
 
Joined: Apr 2012
Posts: 8
Likes: 0
Default

Originally Posted by Undertow74
How is your engine oil level? If you are always adding oil you might have bad rings and that would cause excess fuel in the oil. Another possibility is that the fuel regulator is stuck open or an injector.......
Car has 73k miles never really added oil. I just did a cam swap a few weeks ago went to start it yesterday and it wouldn't
start. Will a bad fuel regulator cause it to flood?
Reply
Old Mar 29, 2014 | 06:29 PM
  #4  
Undertow74's Avatar
TECH Fanatic
15 Year Member
iTrader: (45)
 
Joined: Oct 2007
Posts: 1,284
Likes: 13
From: South Carolina
Default

Well there you go....you left out a lot of useful information. You never stated you did a cam swap and it wouldn't start.....sounds like your timing is way off then...and hopefully that's the least of you worries.
Reply
Old Mar 29, 2014 | 06:51 PM
  #5  
Palomows6's Avatar
Thread Starter
Teching In
 
Joined: Apr 2012
Posts: 8
Likes: 0
Default

Sorry for the miss Understanding. Car started fine after the cam install. I went to started and nothing. Noticed fuel in the oil. Fuel pressure with key on is 58-59 then drops to zero within 3-5 seconds. Pulled manifold and fuel on top of the vales, seems like injectors are leaking I just cant
find out why all would be leaking. Thanks for your response
Reply
Old Mar 29, 2014 | 07:25 PM
  #6  
Undertow74's Avatar
TECH Fanatic
15 Year Member
iTrader: (45)
 
Joined: Oct 2007
Posts: 1,284
Likes: 13
From: South Carolina
Default

Did you mess with the manifold/injectors/fuel rails at all? Or only when you noticed it leaking? If your valley is covered in fuel, sounds like you blew a injector o-ring(or a couple of them. Have someone else turn the key on to prime the pump and while you look under hood you should be able to see/ hear which one(s) are leaking
Reply
Old Mar 29, 2014 | 09:15 PM
  #7  
Mike_hawk's Avatar
On The Tree
 
Joined: Aug 2012
Posts: 190
Likes: 0
Default

It could be a bad regulator, you can check pressure at the rail. If the pressure is too high it will be the same as having larger injectors. My guess is that you have a return style fuel rail and it's bad or you have a vacuum line to your regulator that is disconnected or broken. Has it ran since the cam swap? If not I would connect a gauge and turn the key a few times to see where the pressure is at.
Reply
Old Mar 29, 2014 | 09:27 PM
  #8  
Mike_hawk's Avatar
On The Tree
 
Joined: Aug 2012
Posts: 190
Likes: 0
Default

You should have someone turn the key and hold a piece of hose to your ear and the injectors to see if they are cycling or staying on, might be a ground or something.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Pouria Savadkouei
story-1

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

 Verdad Gallardo
story-2

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-3

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-4

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-7

10 Camaros You Should Never Buy

 
story-8

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-9

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

 Brett Foote




All times are GMT -5. The time now is 04:21 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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