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  1. #11
    Sr. Apprentice Scott77's Avatar
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    Nov 2008
    South Florida


    I actually had to get back in there recently to reseat the pump gasket. I was getting a lot of raw fumes and finally realized the gasket had pinched out a little bit on installation, of course it was just a few minutes to fix it. I did however decide that I am going to do a flange and gasket around the cut...... someday....
    2008 Silverado LT

  2. #12


    I recently replaced the fuel pump on my 2001 Yukon XL 1500 from
    the inside. I made an access hole with re-attachable cover. I
    only had to remove the 2nd row bench seat and pull the carpet
    back(no cutting of carpet required). I used a low depth cutting
    wheel, fairly easy, the entire job took me a few hours. Replacing
    the pump is easy at this point and self explanatory. Notice the
    weld spots above the cutout. There is a stiffener welded under the
    floor so the top of the cutout is about 1/2 inch below the welds.
    The width of the cutout is 12 inches. See pictures.

    Click image for larger version. 

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  3. #13


    I figured I would add where to cut on a Suburban (this is a '99 GMT400).

    I used a sawzall and dropped the tank as far as it would go without disconnecting anything. I just undid the straps at the bumper end and lowered the tank with a floor jack using a chunk of plywood to protect the tank. I had a few inches of clearance, but those small hoses near the bumper end were pretty close. A nibbler would work great.

    There is a crossmember in there to cut through. I bolted in a steel bar to replace the chunk I cut out. I also laid a large chunk of plywood to protect the hatch when I'm running a load or the kids are jumping around in there.
    1999 Suburban C1500 LS 5.7 K&N filter, VentVisors, debadged aka "LAAT/i...Larty"
    1994 C2500 454. Ex-Forest Service beastie. aka "Redneck"
    2006 Saturn Ion...the Wife's car.
    Empty spot that needs a Jeep...

  4. #14


    I've done that on other parts replacement on my cars. Can't get to it cut things out of the way.

  5. #15


    Good write up! iv been debating weither to do that or not.

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