How can i bypass or remove the anti siphon valve on a 2005 suburban

Colin Stickland

• 22516 Answers
• Posted on Jun 23, 2010

SOURCE: Siphon gas from a 1999 suburban

easy ,take pipe off under the bonnet that feeds the injection system ,then run a wire direct from the battery to the live wire on the pump ,on top of the sender unit under the seat are two heavy wires and two light wires ,well teh heavy wires are the feed and the earth for the fuel pump ,wire will spark if you touch the earth one or the pump will run if you hit the feed wire ,simple

SOURCE: i am trying to remove my fuel tank from a 96 chevy suburban and replace the fuel pump

ok i'm going to guess that you have a gasoline engine with a side tank like in a pickup truck. if you have a diesel let me know, things might be a little different. here's the step by step for a gas side tank. before you start, disconnect the battery negative cable.
1. drain the fuel from the tank (they don't tell you how, just get as much out as you can)
2.raise and safely support vehicle (get it high enough that you can get under it to work on it)
3.loosen the fuel neck hose at fuel neck and disconnect filler neck from tank
4.support tank and remove tank support straps and insulator strips
5.remove frame mounted bracket
6.lower fuel tank shield
7.lower fuel tank enough to gain access to fuel and electrical connections
8.disconnect fuel feed and vapor hoses
9.disconnect electrical connectors
10.remove fuel sender assembly and seal ring
now to install new tank
1.install NEW seal ring and install sender
2.raise tank enough to connect fuel feed /vapor hoses and electrical connector
3.raise tank fully
4.install fuel tank shield
5.connect fuel tank filler neck and tighten clamp
CAUTION tighten fuel strap fasteners in steps, alternating between straps, until proper torque is reached. failure to properly follow this step can cause bottom of tank to deform. fuel gauge may read improper level if this occurs
6.install fuel tank brackets and insulator strips
torque nuts to 115 in-lbs
7.install fuel tank filler cap
8.connect battery negative cable
9.turn ignition switch off and on and check for leaks
it's pretty much the same for rear tank, just different location, may have off-road shield in back and torque spec is 47 ft-lbs, not 115 in-lbs. you still have to alternate when you torque straps or you risk deforming tank. hope that helps

SOURCE: can you access the fuel pump without removing

If you have a carburetor, you have a mechanical fuel pump on the engine. If you have a throttle body injection your pump is in the tank and the tank needs to be removed to get at it. Before dropping tank make sure the pump is getting power and a good ground.

SOURCE: Does the 2004 cavalier have an anti-siphon valve

Yes, it has a wire mesh type anti syphon device, if you desperately need to syphon fuel from the vehicle it can be pushed through with the hose pipe, but you may risk blocking the fuel outlet if the mesh falls into the tank.

SOURCE: Does the 2004 cavalier have an anti-siphon valve

not 100% on this but i believe all cars after like 97 have an anti-siphon screen that keeps the tube from entering the gas tank.