2003 AVALANCHE LEAK IN LINE FROM FUEL FILTER BACK TO CONNECTOR ABOVE FRAME. HOW TO I DISCONNECT THIS LINE WITH ONE HAND?

SOURCE: fuel filter to tank quick disconnect broken

Here is a quick solution. Go to Napa Auto Parts with your line size. Take the piece you broke off so they can match the line size. They sell pieces that are about 18 inches long so you can splice it in. These pieces range in price from about 16 to 22 dollars. Other parts stores don't carry this fuel line. They will want to sell you the whole line at a cost of hundreds of dollars. Napa will be able to accomodate your request as I know because I get these pieces from them often.
Good luck. Let me know how it goes. Just read the directions on the package. You need to heat the line up to in stall.

SOURCE: i got gas leak coming from the fuel line

First off, what kind of vehicle do you have? I assume it is one that has an electric fuel pump in the gas tank, so that is what my answer will be geared to.
On the gas tank there are several lines. The most important ones for this conversation are the ones that deliver fuel to the engine and the one that returns the excess fuel back to the tank. They are usually different in size.
The larger one delivers the fuel and the smaller one returns the excess fuel back to the tank. Either one may be the culprit in this scenero.The tank is usually connected by a high pressure flexible fuel line to a stainless fuel line resembeling a brake line. At times this flex line may develope a leak for varrious reasons. It could be something rubbing against the line, it could be the crimped connection went bad and is leaking, etc. If it is your flex line, which it probably is there is a repair kit you can purchase to fix it. I have only been able to find this repair kit at NAPA. I've tried many auto parts stores and they are the only ones that carry it. The use of it is very simple actually. You find the leak in your line, which by the way is harder than it sounds and usually involves removing the gas tank. In which case you will need a special tool to disasemble the gas line from the tank. Once the leak is located you cut the line. You then have to place the remaining flex hose in boiling hot water for at least 10 seconds, which makes it soft and insert a splice fiting into it. When the line cools, it will shrink tight on the connector. You the do the same with the hose that came with the repair kit. Then do the same with the other end and install the fitting which connects to the gas tank. You should now be in business.
BTW. I have to do this very thing tomorrow.
Good Luck! and let me know if this helps you.

SOURCE: how to disconnect 2004 cavalier fuel filter quick connect

You can use two small flathead screwdrivers. What you need to do first is the unclip the connection. Once you unclip it, you need to push in on the smaller side of the clip with a regular flat head screwdriver. When you push it in, you also have to try to push the hinged side clip in as well. The hinged side clip needs to be straightened out so the you can pull the filter pipe out. I found the easiest way to do this is to line the two opening up, and while I'm pushing on the smaller side of the clip, stick a small screwdriver on the backside and pry it out. It is a pain to do it without the special tool, it took me about 10-15 minutes to make pry the green "ring" off so that I could pull out the line.

SOURCE: how to install fuel pump in chevy 2003 astro van

Go to the autozone website at autozone.com and register your vehicle. It's free and will give you access to an online repair manual for your vehicle. The procedures for changing the fuel pump should be available there. Sure hope this helped and best wishes.

SOURCE: removing original fuel filter on 96 grand am

if original, don't worry about the black cap and tabs on the non-threaded end of the filter connection. Unfortunately, you have to literally pull the heck out of it to separate it from this connection. What is holding it in is a metal "barbed" collared sleeve inside the connection. Try using a pliers on the cable side (don't bend or break!) and work the filter off using elbow grease. Not fun, but it worked. The FRAM replacement filter simply snapped right in.