Update: '01 chevy fuel pump

2x4

Well-known Member
Since the bumper & hitch on toolbody bed are welded to the frame, had to cut a hole in the steel plate floor to get into the fuel pump. Anybody got any experience taking the pump out? Looks like it twists, then lifts out. How do you disconnect the 3 lines? Looks like they were meant to be squeezed with your fingers or something.
 
2X4,

I don't know anything about your truck, but I had a serious lapse of good judgement a few years ago when I decided to replace the in-tank fuel pump on my son's 1997 Suburban. After much wishing that I hadn't decided to do so, I dropped the tank out of the car, replaced the pump, and put the tank back up into the car.

It took me hours to do so, lying in the gravel driveway. On the suburban, there is a special tool that is needed to disconnect the fuel lines from the connections on the tank. I bought the tool, but it was still a bear.

Good luck on your project. I hope you are smarter and stronger than I am.

Tom in TN
 
I changed one in a 2001 chevy silverado, I just dropped the tank and changed it. Took me about 3-4 hours. Truck was only 4 years old though so not much rust on fasteners. Good luck.
 
To disconnect the lines, there should be white clips that slide into the side notches of the fuel lines. Remove the white clips, than squeeze the oval sides of the fuel lines. At the same time as your squeezing, pull on the fuel lines and they will come off. To install, just reverse process.
To remove the fuel pump, there is a notch ring that rotates around the diameter opening on the fuel tank. Usually you can take a screw driver/punch, with light tapping the ring will rotate. Once you have it rotated to the notches in the tank outer ring, pull up on the fuel pump. Be careful not to damage the float arm, pull it out slowly.
Recommendation, don't install an Autozone or Advance auto brand fuel pump. Spend a little more to get the OEM (Delphi)brand replacement. Carquest or NAPA usually has them in stock. Also check the ground wire from the electrical connector to the frame. If you notice any corrosion, you may want to replace that too. It will prevent a premature failure again.
 
Would have been much easier to put the truck on jackstands, take out the two strap bolts and drop the tank out the bottom. But anyways there is a locking ring that you turn about 1/8 of a turn and remove. Then the sender lifts right out. To get the fuel gauge sender out you have to twist the unit to the front as you pull it out so your hole in the truck bed might not be big enough.
 
There is a lock ring that holds the pump asem in the tank, twist it and lift the ring out. You may need to tap it around. The fuel lines need a special release tool to seperate. It is a split sleeve that you slide in the fitting to release the spring. Its kind of a quick coupler set up. Spray the fitting up good with penetrating oil to flush any rust or sediment out of the fitting.
 
thanks for the info. 35 gal. tank full of gas with no way to siphon it out. The tool body bed has a long hose with several right angle bends that comes into the side of the tank. Even if you could get a hose in there it stays at the top of the tank.
 

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