Have 01 olds bravda, having trouble fueling vech. suspect anti siphon vavle malfunctioning, ware is this located & can i bypass somehow?

Siphoning will work but you may not get all of the gas that way. Is your fuel pump located in the tank? If not, after siphoning most of the fuel out you can disconnect the fuel line coming from the tank and drain it into a container of some sort. Be careful.

If its flashing rapidly and fast then you have a problem with your security ring located on the steering column where the key goes in. If its slow you might have to reprogram the key. Have to look who can come out to you to cut car keys and such. They can do it most times.

It's most likely the fact that there's an anti-syphon trap in the filler pipe.

Due to gas thefts becoming more prevalent when gas was either hard to come by or expensive or both, many manufacturers installed anti-siphon blocks in the gas tank filler necks of many vehicles. These can sometimes be gotten around by judicious fishing of the inlet tubing down through the gas filler neck, but it can be very hard on some vehicles. Try measuring the distance from the bottom of the gas tank to the top of the filler neck with a yardstick. You can hold the bottom of the yardstick approximately at the bottom of the tank as you can see it while kneeling down beside the back tire and note the distance to the filler tube. Mark off that distance from the end of the inlet tubing for the siphon and put a heavy mark on the tubing at that point. If you can\'t get the inlet tubing down the filler neck to this mark, you probably aren\'t going to be able to successfully siphon gas. You can try twisting the tubing as it goes down the filler neck and pushing it up and down to see if you can snake by the anti-siphon block. It helps if the siphon inlet tubing is small and stiff, but again, no guarantees.

Anti siphoning device. Is fitted to most cars and vans now one way is to obtain. An electric fuel pump and disconnect fuel line at engine connect the electrical fuel pump externally to car anp pump out fuel into container

I looked at your security system, it is starter motor disable and fuel injectors. You can usually get the starter crank, but, if it is the security system, it still won't start because of fuel injectors. I don't know any way to bypass security system. You can check for applicable trouble codes, if there are any?

• P0340 - Camshaft position sensor circuit malfunction.
  
• P0457 - Evaporative emission control system leak detected (fuel filler cap loose/off)
  
  There is a bulletin #0398 posted on 05/12/2003 for P0457 - Malfunction indicator lamp (mil) illumination with diagnostic trouble codes p0442, p0455, p0456, p0457, p1442 or check fuel cap lamp illuminated with diagnostic trouble code p0457.

I'd suggest checking with your local dealer, as it may be a fix that is covered by the dealer.

You can,t there is a ball inside that will let fuel in Its there so if the vehicle rolls over the ball moves beck to stop the fuel spilling out of the tank You would need to disconnect the fuel inlet hose at the tank to siphon fuel from the tank

LEFT FRAME RAIL UNDER SEAT

Bypass/jumper the fuel pump relay, disconnect the supply line to the injectors and turn the key on, it will pump the tank dry in about 10 minutes if it's full. You can't siphon a newer car due to the anti-siphon design of the filler neck.