Changing the fuel filter of my 89 astro van and dont know how to depressurize. How do i do this?

On the box of the new filter it says to depressureize the fuel before i change anything. How do i do that?|||i own a shop and all you have to do is take the gas cap off of it ,and you,ll hear it release the pressure on it,it will still have a small amount in it when you remove the filter but it will only shoot out a very small spurt of fuel ,just don%26#039;t be laying directly under it when you loosen the filter up on it,some gas will run out,because of whats in the line,but don%26#039;t worry it will stop,and then change the filter and that%26#039;s it,be sure and tighten the gas cap back up on it,and that%26#039;s about it,your done with it,good luck,i hope this helps.|||your welcome.

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|||Simple, just open the gas cap. Sometimes pressure builds up on a hot day and taking your fuel line off may have pressurized gas squirt out. Anyway, Just take gas cap off or loose.|||You should be able to do this by finding the fuel pump fuse and pulling it, letting the engine run until it dies. There may be a small amount of pressure left in the system, so no open flames! Keep a rag handy to catch any excess fuel. Just becareful.|||Usually on most cars you pull the fuse for the Fuel pump or fuel pump relay. Then you crank the engine two or three times. If the engines starts, it will die soon since fuel pump is inactive. Now the fuel system is depressurized. You can go ahead and change the fuel filter. however, there will be some fuel in the filter and in the lines so make sure you have couple of rags. Be careful no sparking devices close by and no smoking.|||In a fuel injected vehicles the fuel pump is in the gas tank. Even when the vehicle is shut off and the battery is disconnected, there will still be fuel under pressure in the lines , from the gas tank to all the way to the fuel rail and injectors. If you buy a repair manual it will tell you how to depressurize the fuel system (so gas doesn%26#039;t spray every where when you remove the fitting on your filter!!!). A lot of times the procedure involves cycling one of your injectors a few times to relieve the pressure. Just get a Chiltons or Haynes manual, it will describe exactly how it%26#039;s done.


Be safe!