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Old 09-20-2017, 04:35 PM   #4
fdryer
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Join Date: Jan 2006
Location: NYC
Posts: 39,217
 

2003 L-Series 3.0L Sedan
Default Re: How to drain the gas out of Saturn sl

1-Update your profile so no one has to ask what you're driving. Then post any other info that relates to the problem.

2-You can always try starting up and see how the engine runs but you may not be able to tell
the difference between an engine problem or stale fuel. If the gas cap remained on, fuel may be usable as the only issue no can state with certainty - whether or not humidity in a tank is absorbed or condenses at the bottom of the tank and sucked into the fuel filter. A small amount of condensation might not affect engine running once the car is driven and the tank filled with fresh fuel.

3-While a fuel filter under the car, in back can make it easier for draining fuel, you're probably going to wire a jumper to the pump relay to use the pump to drain the tank. If you're comfortable with electrical wiring, remove the fuel pump relay and familiarize yourself with pinout labeling on the relay. Relay terminals 30 and 87 are jumpered to send 12v immediately to power up the pump regardless of ignition switch position. You can make an initial test to verify the pump is running and listen for hissing on the fuel line or go to the back of the car and press your ear to the rear fender panel or use a screwdriver butt handle for a stethoscope - pressing your ear to the butt end with the tip pressed against the tank. The alternative is trying to bypass any anti siphon valve in the fuel pipe to siphon fuel. If you try pumping fuel, remove the jumper, disconnect the fuel filter line and insert the line from the tank into a fuel container. Ensure the fuel line won't pop out under pressure or have someone hold the line into the gas container while you reinsert the jumper across the pump relay socket terminals to power the pump. Be aware of flammable fumes - do this outside or in an open garage with plenty of ventilation. NO SMOKING or using electrical equipment while pumping fuel.

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