1998 Bonneville SE Fuel issues

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, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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chuck202003
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1998 Bonneville SE Fuel issues

Post by chuck202003 »

I am having a problem with my fuel tank. No matter on how many miles I drive I can only put around 5 dollars of gas in my car. I've drove from 50 to 240 miles and can still only put in 5 dollars. I can put more in but at a really slow drip. Any clues on what it could be? Also my gas gauge will only read a 1/4 tank no matter how much is in the tank.
Last edited by chuck202003 on Fri Sep 02, 2011 12:00 pm, edited 1 time in total.
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willwren
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Re: 1998 Bonneville SE Fuel issues

Post by willwren »

Please don't post mechanical problems in General Chat. I'll move this to the proper section for you.


Jack up the left rear, and remove the left rear wheel. Insert a jackstand, and carefully inspect the filler neck between the fuel door and tank for damage, kinks, etc. If that's ok, you may have a blockage in the neck. Is the nozzle restrictor still installed?
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chuck202003
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Re: 1998 Bonneville SE Fuel issues

Post by chuck202003 »

I did not see a category for the fuel problem. Sorry. I have not checked anything yet did not know where to start. I am not sure what the nozzle restrictor is. I am going to look at the car when I get home from work tonight.

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tpulliam79
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Re: 1998 Bonneville SE Fuel issues

Post by tpulliam79 »

Nozzle restrictor is the littlw metal flap right inside the filler tube hole where you put your gas, sometimes they will get stuck in an awkward position, my wifes explorer does it we just have to stick the fuel nozzle in a little less than normal and all is fine.
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chuck202003
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Re: 1998 Bonneville SE Fuel issues

Post by chuck202003 »

I know it is going to sound weird but it seems like when I put the fuel nozzle in the tube all the way it acts like it pushes out a little bit. I have pulled the nozzle out half way and tryed that but the problem is still there.
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Re: 1998 Bonneville SE Fuel issues

Post by tpulliam79 »

I would definitely check the fuel filler tube under car to look for kinks then.
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Re: 1998 Bonneville SE Fuel issues

Post by Mechanical Mike »

There's two tubes, the larger is the filler tube & the smaller is a vent tube. It sounds like the vent tube is plugged or kinked.
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chuck202003
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Re: 1998 Bonneville SE Fuel issues

Post by chuck202003 »

I checked both hoses and they are not kincked or plugged, The nozzle restrictor also looks to be in good condition.
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willwren
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Re: 1998 Bonneville SE Fuel issues

Post by willwren »

Get a piece of hose or tubing and run it down through. You DO have something wrong in there.
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Re: 1998 Bonneville SE Fuel issues

Post by hobbie2k »

It may not be kinked, but chances are the vent tube is plugged, so when you fill the tank, air can't escape, which means fuel can't go in, and the pump thinks the tank full and shuts off. Its almost impossible to find a clog from the outside of the tube. You may have to remove the vent tube and clean it out, or replace it entirely.
chuck202003
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Re: 1998 Bonneville SE Fuel issues

Post by chuck202003 »

I took both hoses off and ran a coat hanger through them and blew air through them, replaced the rubber hoses and took off the nozzle restrictor also opend up the vents a little on the filler tube top, Still having the problem this time I got six dollars in it instead of five. Everything is free of blockage and no kinks. I guess the only good thing out of this is I only busted my knuckle once. HAHA
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chuck202003
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Re: 1998 Bonneville SE Fuel issues

Post by chuck202003 »

Is there anything else to check? Is there any vents on top of the tank? Would this be the same problem that is only allowing my gas guage to read 1/4 tank all the time?
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