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How to release fuel pressure without starting car?

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    How to release fuel pressure without starting car?

    Going to change the fuel injectors and o-rings on the air valves. Only caveat is that I'm also in the middle of a few other projects and can't start the car right now to reduce the fuel pressure using the typical 'pull fuse and start car'. Any other way to do this? Got the goggles and towels ready for a geyser...

    #2
    Pressure dies off pretty quick in my experience. Just use the schrader valve as suggested.

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      #3
      Thanks guys. Completely blanked on that valve!

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        #4
        Valve, but to be honest, if the car has been sitting, there is not much fuel pressure in the line anyway by now.
        BMW / E46M Interior & Trim Restoration.
        https://nam3forum.com/forums/forum/c...ch-restoration

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          #5
          Honestly, on my fuel filter change recently, there wasn't even any pressure (depressed schrader valve).

          Gas will flow no matter what tho (that's better than spraying, ofc).
          DD: /// 2011.5 Jerez/bamboo E90 M3 · DCT · Slicktop · Instagram
          /// 2004 Silvergrey M3 · Coupe · 6spd · Slicktop · zero options
          More info: https://nam3forum.com/forums/forum/m...os-supersprint

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            #6
            Just did it today and glad to see you were all correct. The car has been sitting for about 2 weeks and there was little pressure, if any, left in the fuel rail. All the fuel that came out was just flowing from the rail itself.

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