LT1-LT4 Modifications 1993-97 Gen II Small Block V8

I just cant win.

Thread Tools
 
Search this Thread
 
Old Aug 28, 2011 | 12:21 PM
  #1  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default I just cant win.

So i spent last night and today putting my new coil overs on and this morning getting every finished up and now the car wont start. I have absolutely no idea what it is. The car was running fine before i put everything on. Any suggestions where to start looking?
Reply
Old Aug 28, 2011 | 12:31 PM
  #2  
carlos64030's Avatar
TECH Fanatic
iTrader: (5)
 
Joined: Jun 2008
Posts: 1,307
Likes: 10
Default

Do the basic stuff first, like checking for spark, fuel pressure and fuses.
Reply
Old Aug 28, 2011 | 12:33 PM
  #3  
carlos64030's Avatar
TECH Fanatic
iTrader: (5)
 
Joined: Jun 2008
Posts: 1,307
Likes: 10
Default

Also, turn your key on without cranking the motor and make sure you can hear the hum from the fuel pump.
Reply
Old Aug 28, 2011 | 12:33 PM
  #4  
Camaro350Z28's Avatar
TECH Enthusiast
iTrader: (6)
 
Joined: Sep 2004
Posts: 576
Likes: 0
Default

wont start? it turning over? check fuel pressure like stated then if thats good lean on spark
Reply
Old Aug 28, 2011 | 12:38 PM
  #5  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default

Ill have to check pressure later this week because i dont have a guage, and i hear the fuel pump priming so i dont think its the pump.
Reply
Old Aug 28, 2011 | 12:40 PM
  #6  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default

Although i can hear a sucking hiss noise coming from under the hood every 2 or 3 seconds while i was trying to crank it that i have never noticed before.

Last edited by lethal bird; Aug 28, 2011 at 01:00 PM.
Reply
Old Aug 28, 2011 | 01:21 PM
  #7  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default

The hissing almost sounds like its coming from behind the intake from what i can tell.
Reply
Old Aug 28, 2011 | 01:22 PM
  #8  
96TransAmboosted's Avatar
TECH Fanatic
iTrader: (8)
 
Joined: Jan 2011
Posts: 1,550
Likes: 0
From: Pinellas Park Florida
Default

You need to be more specific on what the car is doing. Is it turning over like it should? Ifyou don't have a spark tester use an old plug or screw driver.to verify you have spark. Without a fuel test gauge its gointo be hard to tell if you have proper fuel pressure.

Someone is going to say must be the opti since you swapped the shocks....lol a joke of course. Diag is needed.
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 Aug 28, 2011 | 01:28 PM
  #9  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default

Originally Posted by 96TransAmboosted
You need to be more specific on what the car is doing. Is it turning over like it should? Ifyou don't have a spark tester use an old plug or screw driver.to verify you have spark. Without a fuel test gauge its gointo be hard to tell if you have proper fuel pressure.

Someone is going to say must be the opti since you swapped the shocks....lol a joke of course. Diag is needed.
Yea im not so worried about the opti its brand new not even 1000 miles yet, the car was running fine before i started putting the shocks on. I will be able to check fuel in the next few days (going out of town today), and i dont have any one to help check for spark now so that will have to wait too. But its turning over like normal EXCEPT for the hiss every 3 seconds, it just wont start.
Reply
Old Aug 28, 2011 | 01:57 PM
  #10  
96TransAmboosted's Avatar
TECH Fanatic
iTrader: (8)
 
Joined: Jan 2011
Posts: 1,550
Likes: 0
From: Pinellas Park Florida
Default

The opti comment was a joke , everyone is so quick to blame the opti. Need proper diag before you can blame anything. But if the opti is only 1000 miles old then there could be someting there. If you were close I would help you
Reply
Old Aug 28, 2011 | 02:01 PM
  #11  
blackmagicturbo's Avatar
Launching!
iTrader: (2)
 
Joined: May 2010
Posts: 292
Likes: 0
From: ventura
Default

car low on gas ? jacking it up on low gas could of emptied the sump
Reply
Old Aug 28, 2011 | 02:04 PM
  #12  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default

Yes it was very low on gas went and got a gallon jug and filled it up before i even tried to crank it.
Reply
Old Aug 28, 2011 | 02:16 PM
  #13  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default

Just went out and pull a plug wire and stuck a screw drive in the connector and tryed to arch it off the headers and got nothing.
Reply
Old Aug 28, 2011 | 04:06 PM
  #14  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default

Is there a way to check the coil for spark? Cause i find it hard to believe that the opti is dead again. It was running perfectly
Reply
Old Aug 28, 2011 | 04:07 PM
  #15  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default

Is there a way to check the coil for spark? Cause i find it hard to believe that the opti is dead again. It was running perfectly before i started putting the shocks on.
Reply
Old Aug 28, 2011 | 05:18 PM
  #16  
96TransAmboosted's Avatar
TECH Fanatic
iTrader: (8)
 
Joined: Jan 2011
Posts: 1,550
Likes: 0
From: Pinellas Park Florida
Default

Are the grounds on the passanger side block tight?
Pull the wire off the opti and test the coil there. Be careful cause it will bit you.
Reply
Old Aug 28, 2011 | 05:26 PM
  #17  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default

Ill check that as soon as i get back on tuesday.
Reply
Old Aug 28, 2011 | 07:02 PM
  #18  
the_merv's Avatar
Banned
iTrader: (88)
 
Joined: Mar 2006
Posts: 21,019
Likes: 893
From: The Beach...
Default

What did you disconnect to put the coil overs on?

Last edited by the_merv; Aug 29, 2011 at 01:28 AM.
Reply
Old Aug 28, 2011 | 07:48 PM
  #19  
lethal bird's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Jul 2009
Posts: 1,826
Likes: 1
From: Dekalb, Ms
Default

The only thing removed was the master and the shocks themselves. But the doesnt explain why im not getting spark. My uncle tried to tell me maybe i sweat on the coil or the icm and shorted it out some how? Or maybe i rested my arm on something pulled a connector aloose.
Reply
Old Aug 29, 2011 | 01:29 AM
  #20  
the_merv's Avatar
Banned
iTrader: (88)
 
Joined: Mar 2006
Posts: 21,019
Likes: 893
From: The Beach...
Default

I'd just check everything over..
Reply



All times are GMT -5. The time now is 01:07 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