Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

In line electric fuel pump issues

Thread Tools
 
Search this Thread
 
Old Apr 3, 2008 | 12:01 PM
  #1  
Vicious95Z28's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Jun 2006
Posts: 1,831
Likes: 52
From: Elkton, Va
Default In line electric fuel pump issues

Hey guys, I have a quick question. I bought a 140gph "black" pump w/reg. from ebay. It's a ProComp pump which could be a problem but I was trying to save a few buck over a Holley blue which I may end up having to get anyway.

O.k. I have bought one of the Jeg's wiring harness with relay kits but I'm yet to install it. Right now it's just hooked into a ign under the dash in the fuse box. The problem is after the truck runs for 20-25 minutes the pump starts to fluctuate, it's wierd really, and the other day it dropped to like 3lbs and pretty much quit. I can turn everything off and let it sit for a while, fire it back up and all is well. It almost seems as if there is too much pressure build up that cant be released when it's just idling, so far the trips that I've driven it up and down the road seem to be fine.

The regulator is also one of the Holley type knock offs with 3 3/8 npt ports, one in the bottom bringing fuel in and one on each side. Do any of you guys try to bushing down one side to a 5/16 and run it to a return to try and relieve some psi, will this work or with a return will the pump not be able to keep up?

Also, could the problem be that the way I have it wired now be causing a voltage fluctuation. I'm gonna try to get the relay kit wired up by the weekend but I don't know if it's the remedy for the problem, either way it should be on there.

Sorry for the long post, I was just trying to provide as muh information as possible.

James
Reply
Old Apr 3, 2008 | 12:52 PM
  #2  
DarkJuggalo's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Sep 2007
Posts: 1,275
Likes: 0
From: Charlotte, NC / Ansonia,CT
Default

should be ok if you run a return, i could give a better idea if u could link me to where ya got it so i can look at all specs =)
Reply
Old Apr 3, 2008 | 01:24 PM
  #3  
JUICED96Z's Avatar
TECH Addict
iTrader: (2)
 
Joined: Jul 2002
Posts: 2,970
Likes: 1
From: Indy
Default

I just had two blue pumps go bad on me, you can get some nice billet ones for not much more or just better ones in general for not much more.
Reply
Old Apr 3, 2008 | 01:35 PM
  #4  
Vicious95Z28's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Jun 2006
Posts: 1,831
Likes: 52
From: Elkton, Va
Default

Originally Posted by DarkJuggalo
should be ok if you run a return, i could give a better idea if u could link me to where ya got it so i can look at all specs =)
http://www.procompelectronics.com/ca...roducts_id=257

Hope this helps
Reply




All times are GMT -5. The time now is 05:16 AM.

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