Access fuel pump in Buick Century / W-Body car
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- เผยแพร่เมื่อ 15 ต.ค. 2024
- Rough steps for w-body fuel pump replacement at bottom of descriptions. Supplies list below ~
Fuel Pump - goo.gl/orheok
Low profile 1/4" ratchet - goo.gl/No7HFj
Metric 1/4" Socket Set - goo.gl/YN38Pn
1/4" Socket Extensions - goo.gl/jf9X2j
Screwdriver Set - goo.gl/3qOkk9
Wire strippers - goo.gl/79dTSa
Snap Ring Plyers - goo.gl/g5wj56
Fuel Pressure Guage - goo.gl/S9gKxb
Fuel Siphon - goo.gl/NgwvNx
5 Gallon Fuel Canister - goo.gl/15EbXo
or 2.5 Gallon Fuel Canister - goo.gl/yUaFXs
Duck / duct tape - goo.gl/GHAKYv
Lubricant for O-Ring / Tank Seal - goo.gl/XEvgEH
Shop Towels - goo.gl/NnX5Qq
Gloves - goo.gl/KLwcOA
Shop Vac - goo.gl/3kVec1
These are affiliate links
DO THIS AT YOUR OWN RISK. I ACCEPT NO RESPONSIBILITY FOR YOUR WORK. THIS IS FOR INFORMATIONAL PURPOSES ONLY.
This procedure should be similar for any W-body car, Buick Century, Buick LaCrosse, Buick Regal, Chevrolet Impala
Chevrolet Impala Limited, Chevrolet Lumina, Chevrolet Monte Carlo, Oldsmobile Cutlass Supreme, Oldsmobile Intrigue, Pontiac Grand Prix ~ As demonstrated on 1998 Buick Century. Pleasure double check your car to ensure this will work.
NOTE: Best done with LOW tank close to empty. WORK IN WELL VENTILATED AREA! ALL CAR WINDOWS OPEN. TRUNK OPEN AND FAN TO PURGE OUT GAS FUMES.
Step 1 - Test fuel pump using test port on fuel rail. Normal operation at idle or prior to starting car (ignition on) should be between 35-40 PSI roughly (double check for your car).
Step 2 - Relieve fuel pressure. Pull fuel pump fuse and crank engine until it stalls.
Step 3 - Disconnect battery.
Step 4 - Open all garage doors and place fan in room.
Step 5 - Expose pump access panel. Clean trunk and remove spare tire. Remove back seat. Open trunk carpeting at seam.
Step 6 - Remove pump access panel. Use 10 mm socket.
Step 7 - Clean top of tank before removing pump. Use a tooth brush, mild cleaner, and shop vac to clean up and avoid dumping debris in tank.
Step 8 - Disconnect top of pump electrical connectors. Tape electrical connectors to side.
Step 9 - Use snap ring pliers to remove pump snap ring.
Step 10 - Disconnect fuel lines. Residual fuel will be in line so set rags underneath. Carefully disconnect the lines and save the line quick connect clips.
Step 11 - Carefully lift pump out allowing gas in the pump to drain into the tank. Save your o-ring seal as the new one may not fit.
Step 12 - Siphon out as much of the remaining gas as practical. Look to ensure tank is clean. If it is not you'll need to drop it and clean the tank out. Not covered in this procedure however, this is one of the easiest tanks I've ever removed before.
Step 13 - Generously lubricate the o-ring seal and place it in the pump opening on the tank.
Step 14 - Gently lower the pump into the tank ensuring not to damage the input screen or level float.
Step 15 - Connect the fuel lines with the pump free.
Step 16 - Slide the snap ring on top of pump.
Step 17 - Using pressure but not so as to break pump, wiggle the pump as pressing down into the tank. It will eventually seat all the way in. This takes a LOT of effort. Tip slip the ring clamp into areas which it fits and continue wiggling until you've got the whole pump lock in place.
Step 18 - Splice in your new pumps connector (if necessary). Then connect the new pump.
Step 19 - Replace your fuel pump fuse and reconnect the battery.
Step 20 - While carefully watching the top of the fuel pump, turn your ignition to on. The pump will turn on and you should see NO LEAKS on the lines for the pump. If you do you need to better connect the fuel lines to the pump.
Step 21 - Start your car and take a closer look at top of pump while idling. Also look under hood to doubly check fuel line connections.
Step 22 - Re-install pump cover, back seat, and enjoy!
Troubleshooting / Check engine light is on.
If your car is throwing a engine code, chances are the o-ring seal did not seat correctly on your pump. Unfortunately you'll have to re-install your pump to see that it does. While you're re-installing the o-ring seal pull your ECM fuse to reset your DTC codes / engine light. Once you've got everything back up and running, let the car idle for a while. Your check engine light will go off after about 5 minutes if your codes didn't reset but you did the repair correctly.
Great tips, thank you. I have a "93 Buick Century, can I get to the fuel pump the same way? They the back seat?
Hrm. That is a good question. I'd have to take it apart to figure out. I've only done 98 and newer. Wish I could be of more help.
Thanks for the vid! Clean car!!
Same procedure goes for Oldsmobile Intrigues!!
thanks for sharing. glad to know more cars have that door. as is a PITA without it lol
What years have this removable hatch
I have a 1994 century is the access panel the same
What year are you working on? If you accessed the pump from the trunk, why remove the back seat?
Exactly
In mine the seat is ontop of the fabric that is on the pump, ontop of that allowing ventilation is good for airing out the fumes of the gas. As well makes it that much easier to have room to do anything.
What year is your Buick Century?
I owned three of them... Two 98's and and 99. I think that one was a 99? I don't recall exactly was quite some time ago.
Does the 1998 Buick LeSabre have the access door? I'm trying to figure out if me and my dad are going to have to MAKE ONE or if its actually in the trunk or behind the back seat.
@@GoobieGoobs I wish I knew... You have to pull up the rug a bit and look... Or maybe you can rub your hand across the rug and feel if it does?
My wife picked up a 2005 LeSabre custom. It runs great but while running it sounds like a motor in the trunk switch's on for a while then back off. One of my buddies said it's my fuel pump switching on/off and is normal for this model. I have no doubt it's the pump but is this really normal? I should point out the noise is a low even hum and does not change performance when you hear it. Thanks.
How did you get the pump to sit right? The pump wont go past the O-ring so I can put on the locking ring
Is your sending unit binding up in there? I'm trying to recall, on most pumps there's a little spring that keeps force on the pump so it's securely seated at bottom of the tank. Maybe that's spring isn't compressing? It'll be right below top of pump housing and the assembly below it that holds the pump and sending unit.
Do you know a Buick/GM part # for the access plate cover itself? Thanks and let me know...
Not that I know of. Sorry for slow reply. You can surf GmPartsDirect.com or even try RockAuto.com and see if they reference a part number for that. I'd be really suprised if they did. However, is something you could easily get at a junkyard. Likely buick used the same door on a few models of similar year. Certainly worth checking.
How about a 2002 Buick rendezvous... Can you access like this?... thanks, Hugh
Does a 95 buick regal grand sport have a access panel?? Also, what year is your buick? And make??
Awesome videos! You saved me a lot of trouble, I did not know there was an access panel! Thx for posting these videos!
Glad I could help out!
Did you use crimp connectors to splice the wires or did you solder them?
You can use a crimp.
Would it be in the same place for a 98 buick century?
Yes
I can't find a access panel in a '95 Century wagon with a jump set in the floor. Do I have to drop the tank?
probably lol how'd it go
Did you have enough slack on the stock wires to splice in the new connectors? Or was it a pain in the ass? Other people are going underneath the car to unhook the harness in order to free up some slack. I was just wondering if that was completely necessary. Thank you
Cool, access plate, not dropping a tank.
The tool shown is an internal snapring plier, some can switch between internal and external snaprings.
As mentioned, those are nuts to remove, not bolts.
Have a customer car, code for evap (likely the pressure sensor on the pump) and dead fuel gauge. A 16yo car with 100K miles, I will replace the whole unit.
'95 to '99 Rivieras also have this same location for their pumps. and those are nuts that you are removing from studs.. not bolts..
That's true. Bolts are affixed to a stud, as opposed to a nut, which needs to be attached to the stud manually.
Is that the same for a 97 Buick century ?
Probably a little different but you can feel around in the trunk for the access door before you pull the rug out :) If there's an access door then likely it's very similar.
Matthew Jeschke. Thanks
Would this work for a 97 buick regal
I have a 05 Buick Century is the fuel pump in the trunk as well?
Don't listen to Shawana. It's in the center console.
after changing my fuel pump my car continues to smell like gas even a week later. any idea whats causing that.
find the leak...
Check fuel pressure regulator.
Is It in the same place on a buick park Ave?
+Derryck Tarver very good possibility. Look in the trunk, is there a seam down the middle of the trunk? If so pull the spare tire and check if separating that seam reveals the access door.
Ok thnks man
Even the Delphi...the 200$ pump wiring harness has to be spliced in my fur go round with it they had send the wrong wiring instructions pump was running backwards
Can access the pump on a 94 regal custom that way
London Howell good to know :) I'm sure there's a few other Buick products from around these years that have a nice little access panel like that. I've had other cars where I had to cut the exhaust out and disassemble the whole back of the car to do this job. Was delightfully surprised by Buick :)
do you have any clue if an 05 centry is done the same way? Also, I am having a little trouble with checking if the link for that pump would work on my 05.
+Paul Savell I believe the 05 has the same panel to remove the pump. In amazon you can check parts comparability by entering your vehicle details before ordering... It should check comparability for you. FYI ~ if you drop your tank you can also clean it, which is an even better way to do this, your new pump will last even longer.
I do greatly appreciate your response.
'99 - '05 has this panel. '98 MAYBE, definitely not '97 and before though.
What was the car doing
It was starting hard. Eventually it won't start at all. You'll also get a bit worse gas mileage and may stutter under heavy acceleration.
What about 1995 buick park ave ultra
pull carpet back, see if there is a hatch.. if so you are in luck :) otherwise youblikely have to drop the tank. isnt too tricky but in that event make sure it is epty and car is VERY well secured.
Didn't see a hatch. So I'll make sure the tank is empty as possible. And looks like I will have to elevate the car as well.
3:20 That sensor is the fuel tank pressure sensor.
You rock, thank you!
Good video
My 1990 buick century dont have the access panel smh
Cut one with a Dremel tool then seal it back up with silicone and aluminum tape
Great video. I never knew about this!
Glad I could help out :)
thx man
Ayyooo!!! 0:50
Yippie!
buick centry look at that green car is buick centtry
I was charged $600 for a fuel pump replacement. It lasted 30 days... 02 Buick century.... Gotta find a better mechanic.
No kidding that's sad to hear. Did they warranty the work?
Ring clamp = snap ring
I have a Buick lacrosse 2007 where is the fuel pump located
In the gas tank
Those are not bolts, they are nuts.
how about 2002 buick regal is it same