Remove gas from tank??
Thread Starter
Racer
Joined: Aug 2002
Posts: 417
Likes: 1
From: Florida
Remove gas from tank??
No wise cracks about driving, please
My car has been sitting in my garage for some time, the gas has gone bad. Back fireing through the exhaust, very rough idle.
Here is my question. How do I drain/remove gas from the tank/tanks without having to drop them? I tried to put a hose from a manual pump down through the gas tank filler, but it will not go down far enough to make contact with the fuel. Help
Thanks in advance
My car has been sitting in my garage for some time, the gas has gone bad. Back fireing through the exhaust, very rough idle.
Here is my question. How do I drain/remove gas from the tank/tanks without having to drop them? I tried to put a hose from a manual pump down through the gas tank filler, but it will not go down far enough to make contact with the fuel. Help
Thanks in advance
Drifting
Joined: Nov 2003
Posts: 1,894
Likes: 6
From: Sahuarita AZ
The service manual says you can drain the tanks using an air operated pump device and flexible fuel hose on the fuel feed pip nipple on the pump. This nipple is the lower of the 3 on the pump from the image in my manual.
I too tried to siphon the gas out through the filler neck and it seems there is a anti-siphon device stopping my hose from reaching the fuel. Gonna try what the service manual suggests since my pump is dead.
If your pump is working and you don't want to get under the car you could always use a fuel pressure gauge on the valve at the fuel rail and bleed it off using the gauge. I was able to get my pump to pump ~6 gallons out this way before it completely died on me.
I too tried to siphon the gas out through the filler neck and it seems there is a anti-siphon device stopping my hose from reaching the fuel. Gonna try what the service manual suggests since my pump is dead.
If your pump is working and you don't want to get under the car you could always use a fuel pressure gauge on the valve at the fuel rail and bleed it off using the gauge. I was able to get my pump to pump ~6 gallons out this way before it completely died on me.
Instructor
Joined: May 2010
Posts: 117
Likes: 2
From: Providence RI
http://www.aacorvette.com/pdf/aa_fue...structions.pdf
Basically you need to:
Relieve the fuel pressure from the Schraeder valve
Get a bucket
Remove the fuel supply line at the firewall
Attach a clear hose to supply line at firewall
Put the hose in the bucket
Remove the Fuel Pump relay
Jump the fuel pump relay
Basically you need to:
Relieve the fuel pressure from the Schraeder valve
Get a bucket
Remove the fuel supply line at the firewall
Attach a clear hose to supply line at firewall
Put the hose in the bucket
Remove the Fuel Pump relay
Jump the fuel pump relay
Last edited by FirethornC5; Sep 5, 2010 at 11:49 AM.
Team Owner
Joined: May 2001
Posts: 87,321
Likes: 1,586
From: Western NY
http://www.aacorvette.com/pdf/aa_fue...structions.pdf
Basically you need to:
Relieve the fuel pressure from the Schraeder valve
Get a bucket
Remove the fuel supply line at the firewall
Attach a clear hose to supply line at firewall
Put the hose in the bucket
Remove the Fuel Pump relay
Jump the fuel pump relay
Basically you need to:
Relieve the fuel pressure from the Schraeder valve
Get a bucket
Remove the fuel supply line at the firewall
Attach a clear hose to supply line at firewall
Put the hose in the bucket
Remove the Fuel Pump relay
Jump the fuel pump relay
I'm sure that that method would work, but isn't that going to send all the crappy fuel through the fuel filter, potentially trashing it?
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Instructor
Joined: Dec 2006
Posts: 128
Likes: 2
From: Trenton New Jersey
Maybe its not your gas?
For two years my stock 03 sat unused without fuel stabilizer and when I started it up this past Spring I had no problems. I worried that old gas would be a problem and regretted not putting in fuel stabilizer. Recently my 1935 Ford Street Rod had sat for 5 years without fuel stabilizer and yet it started right up. For the past 25 years or so I have never drained the fuel on any vehicle, snow blower or lawn mower that I have owned, and I never had a problem with old or bad fuel. I see you have some minor modifications to your motor my suggestion is to check them first then look at your plugs and wires. Draining your tank seems like a big job I would check other things under the hood that causes backfires like bad plugs and wires. Good luck
Note: On my old Ford the only problem after sitting for 5 years was dried out gaskets on the carburetor which cause it to leak a little fuel. New gasket kit fixed that easy.
Note: On my old Ford the only problem after sitting for 5 years was dried out gaskets on the carburetor which cause it to leak a little fuel. New gasket kit fixed that easy.
