How do I relieve fuel pressure on my 1990 Pontiac Bonneville?

d4nnyb0y02 asked:

I would just like to know how to relieve fuel pressure on my 1990 Pontiac Bonneville so that I can change a fuel filter and possibly some fuel injectors.
Please try and be as specific as possible, as I am not that technical. I wouldn’t say I know “just enough to be dangerous.” I would say I know just a little more than that. :)
Thanks.

Sandra

Comments

  1. Jim
    June 9th, 2009 | 1:04 am

    The butter fly valve.

  2. June 11th, 2009 | 1:16 am

    For any pressure at the test for any pressure at the engine fuel rail.

  3. June 12th, 2009 | 11:15 pm

    For black cap unscew it looks like tire valve push needle down gas tank isnt over filled.

  4. June 13th, 2009 | 1:42 am

    well if you remove the fuel pump fuse the car wont start to clear out the fuel so with the car running remove the fuse most of the pressure will release but no matter what you do when you take the filter off you will get gas and if filter is very restricted then you will get spray because it is still pressurized

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