Question about 1999 Buick Century

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I have a 1999 buick century and smell gas when turn off,Were do I look for gas leak

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May be one of the injectors

Posted on May 22, 2011

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Posted on Jan 02, 2017

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I have a Buick century 2000 3.1 and I have a gas leak I already checked gas lines filter ,fuel pump and none of those leak whatelse can I check .... I smell it more on the drivers side in the hood what...


Check the EVAP system - the smell may be coming from it. There is a vapor recovery canister that may be cracked, full of gas or with a bad tubing connection. As part of the system, there are also usually two vent valves to relieve vapor pressure in the gas tank - one on the engine and one towards the rear of the car. If you have a loose connection or one is stuck open, you can get that smell.

Jul 13, 2017 | Buick Cars & Trucks

1 Answer

I have a 2000 Buick century 3.1 I smell gas when it starts but can't locate where its coming from I changed the fuel filter hoses and checked the fuel pump it smells like its coming from the hood


You may have a fuel injector that is leaking tiny amounts of fuel at the connection to the fuel supply pipe that sits over the fuel injectors, check there and replace any seeping "O" ring seals that you find. There should be stains from any fuel leaking, look carefully.

Feb 06, 2017 | 2000 Buick Century

1 Answer

My friends 1999 Buick century's leaking break fluid from the dead center of the fuel tank. line runs hub to hub. how could a leak spring up in such a guarded area? Splice it there or what?


only replace lines as any other repair is strictly illegal and dangerous

the leak can be from rusted steel pipes and fittings or failed /rotten rubber hoses

Apr 14, 2015 | 1999 Buick Century

1 Answer

I smell gas when i turn the ac


Check for a faulty fuel pressure regulator

Mar 30, 2014 | 1999 Buick Century

1 Answer

Codepo455buicklucerne


Could be as simple as the gas cap is lose or not sealing correctly or faulty emissions component.

Real world EVAP How to diagnose P0455 code

Mar 26, 2014 | 1999 Buick Century

1 Answer

2002 Buick Century fuel odor


The oil pan is on the bottom of the engine, so any oil leaks from the top or front of the engine could drain down and look like an oil pan leak. It's important to verify that there are no other leaks before having the oil pan resealed. Repair cars by diagnostic tool.

Oct 29, 2012 | 2002 Buick Century

1 Answer

Gas smell coming from car. after its been running especially. When car is parked in garage after its been running garage smells like fuel


Then it is leaking fuel from somewhere. Check all of your fuel lines on the bottom of your car and check the lines under the hood.

Jan 11, 2011 | 2003 Buick Century

2 Answers

Poor gas mileage


Do you have a gas smell in vehicle if you do there check and make sure that you are NOT loosing gas by a leak in the fuel line that was replaced or anyother part of the fuel sytem for that fact. If there is NO leak then the pressure from the pump may be too high and therefore dumping too mucj fuel into chambers but if this is true the vehicle may have a hesitation on take off or may run a little roughand a rich burning smell from exhaust, Check these things out make sure that the fuel pressure at the injector rail is correct refer to your repair manal for exact specs,because I NOT sure what it its, good luck and thanks for using FIX YA

Mar 21, 2009 | 1999 Buick Century

1 Answer

Gas odor when at stops sign or parking in garage


I recently had the same problem. It turned out that the fuel regulator on the engine at the left side just above the intake manifold had an intermitent leak. The gas leaking was not always visible so I had the regulator changed and that solved the problem.

Jan 15, 2009 | 2004 Buick Century

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