Question about 2002 Buick Century

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2002 Buick Century fuel odor

I have a 2002 Buick Century that has a real strong smell of fuel inside car while the heater is running. There are no leaks to be found.

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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.

Posted on Oct 30, 2012

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Posted on Jan 02, 2017

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Car intermittently has strong gas smell. No gas is visible on or around motor or at fuel pressure regulator. Nothing seems to set it off (Eg. full tank or low tank). No gas residue on garage floor. Gas...


things that you need to look for (if you are capable):

1-do you regularly overfill your gastank to the brim? If so, these are the fumes from that overflowed to the EVAP charcoal canister.

2-check to see if there's any overall fuel line/hose deterioriation.

3-check to see if you have fuel leak from your pressurised fuel rail.
4-check the vacuum(some of them are now electromechanical) EVAP solenoid.

Aug 28, 2013 | 2004 Buick Century

1 Answer

Have a 94 Buick century. Replaced thermostate. Running hot. Looks as tho is leaking underneath front near pump. And also in passenger floor board can't see the leak from inside. It's just alwa


Whenever I see a system which is leaking from more than one or two places, I do a head gasket check because that tells me that the system is experiencing above normal pressures. the wet floor is a heater core. whether it's a water pump or some other thing near it only you can tell. Actually it rarely happens, but the wet floor could be the hose where it meets the heater core at the firewall; again, only you will be able to tell the difference. if the hose connection looks dry, assume that it is the core itself.

Mar 03, 2013 | 1994 Buick Century

1 Answer

Fuel smell inside ford 2002 explorere when running air


Hey man odds are you have a small fuel leak under the hood probably like a pinhole in a fuel line. When you turn on the ac you are pulling air from the front of the vehicle in turn pulling in the fuel smell. Find and stop the leak and that should get rid of the smell in the cab when the ac is running.

Aug 15, 2012 | 2002 Ford Explorer

1 Answer

Why is it that there is a strong smell of gasoline when the engine runs


  • First thing I would do is get a flashlight and look around the injectors real well for wet spots.
  • Look at the fuel lines under the hood for a leak.
  • Look at the fuel tank and the fill spout for the fuel tank.
  • Check the fuel lines from the pump all the way to the fuel injectors as well.

  • A good majority of the time, if you smell heavy gas when in the car, especially when driving, you have a cracked injector or a seal on an injector has failed. You want to look real good at the base of the injector because it may not be a big leak and gas evaporates fast so the leak may not be real big. You can also pull the fuel rail and inspect each injector.

  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.


Regards,Tony

Oct 13, 2011 | 2002 Suzuki Grand Vitara

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

1 Answer

2002 oldsmobile bravada,have a strong gas smell in the air cleaner


Take the air cleaner off and open the throttle (have someone hold the gas pedal to the floor) and look down into the intake manifold, if you see gasoline, the Fuel Pressure Regulator may be leaking sometimes there are plastic fuel lines inside that can leak also. When either of these leak, the engine should run REAL BAD/RICH. Black smoke coming from tail pipe.

Sep 05, 2010 | 2002 Oldsmobile Bravada

2 Answers

Car smells like gas but no leaks


Vapor cannister hose under hood could be off or cracked.

Dec 04, 2009 | 2001 Buick Regal

1 Answer

New fuel pump on my 1998 Buick Regal GS my mileage went down.


Get the TPS checked out for it may not be adjusted correctly.

Jul 20, 2009 | 1999 Buick Century

1 Answer

Gas smell outside and inside


don't over fill the tank, when it clicks off thats it!! any check engine light? I had fuel smell, and the O-Ring was leaking when I changed the fuel pump. Top of the fuel tank, was leaking only on a full tank, Also evap, pump and hoses do crack and leak but it will show, in a check engine light usually

May 12, 2009 | Dodge Caravan Cars & Trucks

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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