side effects of not depressurizing system

[GsxEcutioner]

I read all over the place that you have to depressurize the fuel system when taking out any fuel component, like fuel rail or injectors, if I didnt do it. whats the side effect?
-Shane

 

[GRAVEDIGGER]

Fuel spraying out in your face Or it could spray out onto a hot surface such as the exhaust manifold etc. and catch fire. They just say that as a precautionary measure so that you avoid such things as I just mentioned. No other side effect besides fuel spill and/or fire.

 

[LiquidX]

Please wear goggles, I *thought* I depressurized the system when I relpaced some o rings on the injectors. Took out an injector and fuel sprayed into my eyes. Didn't feel too good and vision was blurry for a little while. Safety first.

 

[GsxEcutioner]

ok thanks guys, is it bad that I dont ever depressurize it, and when I pull the fuel line off the regulator or pull the injectors out, there is no pressure? if so, what can be the problem?
-Shane

 

[steve]

Most times if you haven't started the car in a few hours (few being dependent on your FPR leakdown rate) there is little to no pressure in the system just fuel that will leak out. You won't damage anything as long as you remember to lube any o-rings before reinstalling.

 

[dsmfa9nutter]

Don't mess with fuel lines for at least a few hours after you've last ran the car, the longer the better. This will keep the little bit of gas that's still pressurized from spraying onto anything hot and starting a fire, plus the pressure will be very low. I like to unbolt the line from the fuel rail, wrap a rag around it and then pull it off, the rag will catch the gas that'll leak out and catch any spray. Just remember that there will be about a half a cup of gas in the fuel rail even after it's depressurized.

 

[ricktb]

yeah you get some spray in a random direction.. keep a fire extinguisher nearby.. a good way to depressurize system is to unplug the fuel pump harness and run the engine until it dies and you should be close to 0 psi