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

Fuel pump

Thread Tools
 
Search this Thread
 
Old Aug 17, 2021 | 11:55 AM
  #1  
Z28juanz28's Avatar
Thread Starter
Registered User
 
Joined: Aug 2021
Posts: 3
Likes: 0
Default Fuel pump

Having issues with the fuel pump. Checked relay and fuse and both are good. You can hear the pump kick on when you turn the key to the on position but no fuel at the fuel rail or pressure. Placed a jumper wire on the relay to have constant power to the pump while I hit the tank still nothing. You can hear the gas in the tank gurgling but still nothing. Time to replace the fuel pump? Or is their something else I can check before I replace it?
Reply
Old Aug 17, 2021 | 07:00 PM
  #2  
dlandsvZ28's Avatar
TECH Fanatic
20 Year Member
Photogenic
 
Joined: Jun 2003
Posts: 1,869
Likes: 99
Default

Originally Posted by Z28juanz28
Having issues with the fuel pump. Checked relay and fuse and both are good. You can hear the pump kick on when you turn the key to the on position but no fuel at the fuel rail or pressure. Placed a jumper wire on the relay to have constant power to the pump while I hit the tank still nothing. You can hear the gas in the tank gurgling but still nothing. Time to replace the fuel pump? Or is their something else I can check before I replace it?
First thing to do when posting is to let those who might respond as to what year fbody. There is a year specific fuel pump assembly for a 98 with a metal tank and a year specific fuel pump assembly for year 1999 - 2002 with a plastic tank.

Check to make sure fuel filter isn't plugged. It might be 20 years old and never replaced. Along with the fuel filter, it's possible the in tank filter has completely disintegrated and has plugged the fuel filter.

Disconnect the feed fuel line on the filter and see if you get fuel. Reconnect and disconnect the exit port on the pump to check if you get fuel. Reconnect exit port on the fuel filter and disconnect the return fuel line on the filter see if you get fuel from the the return port. If you get fuel thru the return but not thru the filter, the filter is plugged.

You might have to remove the fuel pump assembly to diagnose if you get no fuel pre - fuel filter.

Gurgling in the tank could mean the intank fuel pressure regulator is ruptured and/or a hose is lose on the feed line from the pump up to the feed tube on the inside of top of the fuel pump assembly hat.

If you go this far to diagnose I would replace the pump and the fuel pump regulator. Both are perhaps as old as 20 years and are due for a replacement. Same goes for the fuel filter.

Search this forum for instructions how to remove the pump without having to drop the tank.

You might delete your double post.

Last edited by dlandsvZ28; Aug 17, 2021 at 07:02 PM. Reason: edit content
Reply




All times are GMT -5. The time now is 06:35 AM.

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