fuel filter change stop gas..
Thread Starter
Instructor
Joined: May 2010
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fuel filter change stop gas..
i know its 6am here in Florida but going to change fuel filter and fpr too this morning on my 1996. i pulled the fuel pump fuse and car wont run at all. so i then replaced the fuse started the car, pulled fuse waited till car died and took only a few seconds to stall out. seemed fast to me, before i pull the fuel filter off and have a ton of gas all over me, should the fuel line be empty that fast, and i connected fuel pressure gage to fuel rail and have 0 psi, so this means good to go, rather be safe then crispy critter lol. thanks for any help before i go for it ...
pasta mike..
pasta mike..
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
All you have done is relieve the pressure in the line ; it is still full of gas and it will continue to siphon out from the tank fast
because it is higher than the filter unless you;
raise the front of the car high
or disconnect the supply line at the tank so you only loose what fuel is in the line from tank to filter
Is best to change the filter with minimal fuel in the tank
because it is higher than the filter unless you;
raise the front of the car high
or disconnect the supply line at the tank so you only loose what fuel is in the line from tank to filter
Is best to change the filter with minimal fuel in the tank
Thread Starter
Instructor
Joined: May 2010
Posts: 243
Likes: 0
All you have done is relieve the pressure in the line ; it is still full of gas and it will continue to siphon out from the tank fast
because it is higher than the filter unless you;
raise the front of the car high
or disconnect the supply line at the tank so you only loose what fuel is in the line from tank to filter
Is best to change the filter with minimal fuel in the tank
because it is higher than the filter unless you;
raise the front of the car high
or disconnect the supply line at the tank so you only loose what fuel is in the line from tank to filter
Is best to change the filter with minimal fuel in the tank
pastamike
Le Mans Master
Joined: Dec 2006
Posts: 5,139
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From: H-Town Texas
Either way, there's still going to be a fair amount of fuel released when the line is opened up. No way around that really, unless you literally pump all the gas out of the tank and the lines.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
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From: WV
Just work fast....That's what I do....
...I release the pressure on the schrader valve, wrap a towel around the filter while I unscrew the connections, a little gas won't hurt you....Well , unless you smoke while changing the filter....
.....WW
...I release the pressure on the schrader valve, wrap a towel around the filter while I unscrew the connections, a little gas won't hurt you....Well , unless you smoke while changing the filter.........WW
Race Director
Joined: Oct 2005
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From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
St. Jude Donor '10 thru '25
I changed the FPR in my '96 last year, and didn't have any issues.
I released the pressure with schrader valve and used a plastic cap from a small spray can, as a "catch can" for what little fuel came out.
With that cap and some paper towels stuffed around, there wasn't any fuel spilled.
Haven't done the fuel filter yet though, but I believe as mentioned the fuel will continue to siphon out if left open.
I released the pressure with schrader valve and used a plastic cap from a small spray can, as a "catch can" for what little fuel came out.
With that cap and some paper towels stuffed around, there wasn't any fuel spilled.
Haven't done the fuel filter yet though, but I believe as mentioned the fuel will continue to siphon out if left open.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 413
From: WV
I changed the FPR in my '96 last year, and didn't have any issues.
I released the pressure with schrader valve and used a plastic cap from a small spray can, as a "catch can" for what little fuel came out.
With that cap and some paper towels stuffed around, there wasn't any fuel spilled.
Haven't done the fuel filter yet though, but I believe as mentioned the fuel will continue to siphon out if left open.
I released the pressure with schrader valve and used a plastic cap from a small spray can, as a "catch can" for what little fuel came out.
With that cap and some paper towels stuffed around, there wasn't any fuel spilled.
Haven't done the fuel filter yet though, but I believe as mentioned the fuel will continue to siphon out if left open.
....Lesson Learned, never leave the fuel lines on a Corvette disconnected without blocking them off.......
...WW
Last edited by WW7; Mar 9, 2014 at 10:14 AM.
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From: Kingman AZ
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You can also peel back the rubber fuel bib from around the gas filler and use a small set of vise grips to clamp off the rubber fuel line. This will keep the gasoline from siphoning out.
Be sure to disconnect the battery when working on the fuel filter as you are working fairly close to the starter and it is easy to create a spark.
Be sure to disconnect the battery when working on the fuel filter as you are working fairly close to the starter and it is easy to create a spark.
Safety Car
Joined: Jan 2004
Posts: 3,783
Likes: 15
From: Northern California
It's very Simple...
Just remove the filter and replace the inlet side first. Tons of gas won't spill out, (because the front is higher than the rear). I've done it with a full tank gas.
Just remove the filter and replace the inlet side first. Tons of gas won't spill out, (because the front is higher than the rear). I've done it with a full tank gas.
Thread Starter
Instructor
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kool i have about a 1/4 tank now, on the way to work i was going about 40 and hit the pedal to wot, motor fell on its azz, and with fuel pressure gage hooked up and taped to the windsheild pressure dropped to about 10 psi. lifted my foot and motor took off again. going to install the fuel filter and a/c delco fpr, and see what happens, hope it works. if not guessing the fuel pump must be next i guess..
Thread Starter
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pasta
Race Director
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From: moraga ca
Decades ago when I first changed the fuel filter on my C4, I did the quicky fuel filter change without disconnecting or pinching the line at the tank. I didn't have much experience then and obviously wasn't thinking ahead. I was using an old trouble light at the time with a naked 100 watt bulb. Gas was running down my arm. I looked over and saw the bulb smoking as some of the gas was cooking on the bulb. I figured I used one of my 9 lives that night. Just be careful and think ahead.
Le Mans Master
Joined: Feb 2000
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From: Epping NH
I wrote this up a long time ago about changing the fuel filter on later model c4's
http://temp.corvetteforum.net/c4/bac522/technical.htm
http://temp.corvetteforum.net/c4/bac522/technical.htm
Thread Starter
Instructor
Joined: May 2010
Posts: 243
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I wrote this up a long time ago about changing the fuel filter on later model c4's
http://temp.corvetteforum.net/c4/bac522/technical.htm
http://temp.corvetteforum.net/c4/bac522/technical.htm
that has to be the best write up on filter change i have seen. and great help also, cant belive it was that dirty in side, i have about the same on mine too, will do the same and post pics of how dirty mine is may also help people on here with when to change thiers...
thanks...
pastamike..
Last edited by pastamike; Mar 11, 2014 at 06:47 PM.
