where is my fuel filter?

Reply Subscribe

Thread Tools

Search this Thread

Nov 10, 2006 | 10:46 AM

steve dalla

Thread Starter

Instructor

Joined: Nov 2006

Posts: 232

Likes: 0

From: fairfax va

where is my fuel filter?

i have 1980 l48 car. is there a fuel filter under the car? i have one just before the carb but, wasnt sure about underneath. thanks

Nov 10, 2006 | 10:53 AM

Jud Chapin

Race Director

Joined: Sep 2001

Posts: 10,560

Likes: 439

From: Wellington, FL

St. Jude Donor '11 thru '25

That should be it, just the one other than the one in the tank which is called a sock.

Nov 10, 2006 | 11:00 AM

halfmoontrail

Drifting

Joined: Feb 2005

Posts: 1,438

Likes: 2

From: Melrose Florida

There might be an inline fuel filter just before the carb, but there is definitely one in the carb inlet...these commonly fail (clog).

Steve

Nov 10, 2006 | 11:01 AM

steve dalla

Thread Starter

Instructor

Joined: Nov 2006

Posts: 232

Likes: 0

From: fairfax va

how do i tell if i need to change sock? is it a pain?

Nov 10, 2006 | 11:09 AM

Bob Onit

Melting Slicks

Joined: Mar 2006

Posts: 3,342

Likes: 7

From: Connecticut

Quote:

Originally Posted by steve dalla

how do i tell if i need to change sock?

Start by changing the filter in the carb and see how it runs

Is it the stock carb? Quadrajet?

Nov 10, 2006 | 11:32 AM

Jud Chapin

Race Director

Joined: Sep 2001

Posts: 10,560

Likes: 439

From: Wellington, FL

St. Jude Donor '11 thru '25

Quote:

Originally Posted by steve dalla

how do i tell if i need to change sock? is it a pain?

The sock is not a filter that has regular service intervals. They rarely cause problems but when they do, they can shut you down. The problem with the C3's is that they're old and if the original sock is still in place, it too is old. But as Bob says, see how you make out with the carb filter. To change the sock, you have to drop the tank, so yes, it is a pain.

Nov 10, 2006 | 11:55 AM

bluesilver82

Burning Brakes

Joined: Jan 2006

Posts: 1,154

Likes: 1

From: St Augustine FL

I don't know about an 80 but the filter on my 82 is on the frame by the front passenger side door and it is an inline filter.

Nov 10, 2006 | 12:02 PM

Bob Onit

Melting Slicks

Joined: Mar 2006

Posts: 3,342

Likes: 7

From: Connecticut

Quote:

Originally Posted by bluesilver82

I don't know about an 80 but the filter on my 82 is on the frame by the front passenger side door and it is an inline filter.

82 is fuel injected........different setup

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

10 Ugly Corvettes That We Still Kinda Love

Joe Kucinski

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

Brett Foote

10 Things Every Corvette Owner Needs (2026 Edition)

Michael S. Palmer

8 Most "Only Corvette Owners Understand" Quirks and Problems

Pouria Savadkouei

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Joe Kucinski

How Much Horsepower Every Corvette Engine "LOST" in 1972

Joe Kucinski

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Michael S. Palmer

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Joe Kucinski

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Joe Kucinski

8 Coolest Corvette Pace Cars (and Replicas) of All Time

Verdad Gallardo

Nov 10, 2006 | 12:55 PM

lars

Tech Contributor

Joined: Aug 1999

Posts: 14,380

Likes: 6,391

From: At my Bar drinking and wrenching in Lafayette Colorado

Quote:

Originally Posted by steve dalla

i have 1980 l48 car. is there a fuel filter under the car? i have one just before the carb but, wasnt sure about underneath. thanks

The only filter on your car should be an in-carb filter. You should not have any filter prior to the carb or under the car - if there is, remove it. Replace the in-carb filter with a new NAPA part number 23052.

Nov 10, 2006 | 01:13 PM

#10

79vetter

Drifting

Joined: Feb 2005

Posts: 1,583

Likes: 5

From: Richardson Tx.

Also, be careful to not bend the fuel line when loosening it. Its easy to do...

Nov 10, 2006 | 01:57 PM

#11

steve dalla

Thread Starter

Instructor

Joined: Nov 2006

Posts: 232

Likes: 0

From: fairfax va

hey lars, need to clarify carb is not stock, its a holley should i still discard glass inline filter? thanks everyone for all the responce

Nov 10, 2006 | 03:13 PM

#12

lars

Tech Contributor

Joined: Aug 1999

Posts: 14,380

Likes: 6,391

From: At my Bar drinking and wrenching in Lafayette Colorado

If it's a Holley without the in-carb filters in the bowls, you need to retain the in-line filter between the pump and the carb. I'd suggest ditching the glass filter with the rubber lines and using a good filter with screw-on inverted flare or AN connections and running hard line between the pump and the carb.