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

fuel pressure problems need help

Thread Tools
 
Search this Thread
 
Old Oct 11, 2008 | 01:16 PM
  #1  
txbanditswraith's Avatar
Thread Starter
Teching In
 
Joined: Jan 2005
Posts: 26
Likes: 0
From: Texas
Default fuel pressure problems need help

i had just left my house and down the street the car turned off. then i check my gauge and there was no fuel pressure.But when i towed it home after a while it had pressure again. My question is when i turn it on its at 40 but will drop to 38 or 37 sometimes and then i give it a little gas to idel and hold it there it will drop to 35 psi is that right? i thought was not suppose to drop. it my 96 trans am
Reply
Old Oct 11, 2008 | 01:48 PM
  #2  
fergymoto's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (129)
 
Joined: Aug 2005
Posts: 2,810
Likes: 3
From: Rock Hill, SC
Default

I would suspect the fuel pump by the symptoms. I've had two go out and both behaved similar.
Reply
Old Oct 11, 2008 | 01:58 PM
  #3  
txbanditswraith's Avatar
Thread Starter
Teching In
 
Joined: Jan 2005
Posts: 26
Likes: 0
From: Texas
Default

ok cool thanks man yea the guy that had it before me ran the tank dry. when i picked it there was no fuel at all in the tank
Reply
Old Oct 11, 2008 | 02:24 PM
  #4  
lifeisgood's Avatar
11 Second Club
iTrader: (4)
 
Joined: Oct 2006
Posts: 1,029
Likes: 0
From: ky
Default

its the pump. you could alwaya pull the filter off check it but. would almost guar.the pump
Reply
Old Oct 11, 2008 | 02:30 PM
  #5  
dgcustomz's Avatar
TECH Resident
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (128)
 
Joined: Aug 2008
Posts: 860
Likes: 20
From: FORT WORTH
Default

If your pump turns out to be good, check your fuel pump relay. I know it sounds crazy but I had a problem like yours and it turned out that my relay was getting too hot and was not sending enough amps to the fuel pump to keep it running. I replaced my pump and had the same problems. Good thing I had a friend that was a car freak and pinned it down to the relay. I haven't had a problem since.
Reply
Old Oct 11, 2008 | 03:13 PM
  #6  
txbanditswraith's Avatar
Thread Starter
Teching In
 
Joined: Jan 2005
Posts: 26
Likes: 0
From: Texas
Default

wheres the relay to the pump? just in case. think i might be the pump cause you know how you hear the fuel pump clear when you turn the key well mine you really have to listen for it. going to check the pump right know and stuff.
Reply
Old Oct 11, 2008 | 03:17 PM
  #7  
dgcustomz's Avatar
TECH Resident
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (128)
 
Joined: Aug 2008
Posts: 860
Likes: 20
From: FORT WORTH
Default

I have 94 Camaro and i located it under the passenger glove box.
Reply
Old Oct 11, 2008 | 03:20 PM
  #8  
txbanditswraith's Avatar
Thread Starter
Teching In
 
Joined: Jan 2005
Posts: 26
Likes: 0
From: Texas
Default

ok ill check to see if its there for mine thanks and thanks you all for helping me out
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo




All times are GMT -5. The time now is 05:31 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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