HOW TO GUIDE -- Replacing fuel pump on a 92-99 -- 14 pics - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-17-2007, 09:19 AM   #1
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Default HOW TO GUIDE -- Replacing fuel pump on a 92-99 -- 14 pics

This took me about 3 hours, taking my time.


Raise and support vehicle.





Remove Gas Cap





Remove excess fuel from system by using the schrader valve on the fuel rail. use shop towels or rags to do this.





Remove 2 plastic retainers on the fuel lines. these allow you to drop the tank and remove the fuel line plastic connectors. Also disconnect the wiring harness from the fuel pump.





Remove the passenger side rear 15MM bolt holding the strap, make sure the tank is supported by a jack.





Remove the driver side rear 15mm bolt holding the strap.





Here is a jack centered on the tank with the straps off.





Remove fuel lines for the fill area. there are 2 of them. Remove the lines from tank itself, I chose to remove them from the fill lines as well to give them a good cleaning.





Tank is removed after moving it around. Keep in mind I did remove the 2 15mm bolts holding the exhaust to the hangers in the rear of the car. I also removed the center exhaust holder thing with the 2 rubber rings.





Here is how I supported the exhaust, notice it is off to the passenger side.





Remove the retainer ring holding the sending unit to the tank. Notice the debris. I used duct tape on the inside of the tank and carefully swept all the dirt onto it so none of it could enter the tank. Take your time on this step. once you get all the easy dirt out use compressed air to blow out any other debris.





Here is a photo of the old pump.





New pump kit. Walboro.





Here is the difference between them.




Installation is reverse of removal. You may need to replace the straps if they are rusted out if you live in a place where rust is a problem. Overall an easy job to do with one person, but having a second person handy will speed up the process.
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Old 08-17-2007, 09:30 AM   #2
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At which step do you take a break to have a beer and light up a cigarette?
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Old 08-17-2007, 09:32 AM   #3
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Quote:
Originally Posted by myfirstbonnie
At which step do you take a break to have a beer and light up a cigarette?
smoking is not a good idea when there is gas all over.

It took 2 beers to complete the project.
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Old 08-17-2007, 10:39 AM   #4
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Good write buddy...

I would suggest a board between the jack and tank. Also I tend to undo the filler hoses before the tank..but that'* merely preference and in the end they both need to be done.

Was that Walbro specific to the 93 year or is that a standard Walbro?
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