Fuel System complaints by model year
Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
What owners report
You could smell gas inside and outside the car. I took it to my garage and they went all over it and could not find any reason for the smell. It didn't matter if the gas tank was full or half full. When the weather was warm it was much worse. I am wondering if there have been any other complaints about this problem. I am afraid the car will catch on file.
Tl contact owns a 2004 Buick Century. The contact noticed that the fuel gauges were inoperative and displayed inaccurate readings on the instrument panel. The dial constantly displays that the fuel system does not have any gasoline. She is in the process of having the vehicle diagnosed to determine the cause of the failure. The manufacturer has not been notified. The failure mileage was 78,000 and current mileage was 116,000.
Service engine light and gas light came on. Code read at autozone indicated po135- oxygen sensor. Two days later, both check engine lights came on, security, battery and gas lights. Even revved up and had other issues with fuel economy and compressor kicking on and failing to start. Other issues, popping noise when turning steering wheel. The consumer stated the manufacturer was contacted. The manufacturer offered a loyalyty certificate a leased vehucle or a possible reimbursement of 500.00 for repairs. Neither of the remedies satisfied the consumer. The consumer requested to have the vehicle repaired at no cost or be reimbursed 3,500.
The vehicle's gas tank won't hold much and clicks as if full. Also, when on uneven pavement or ground, the ⛽ gas warning light comes on, even after gas was just put in. In addition, at times I smell a "burning electrical" smell and the headlights go out, the brights fail to "click" on or goes off by itself. The turn signal lights have to be turned manually to blink. All turn signal lights have been replaced multiple times and this does not fix the problem. The back turn signals work and light up, but not the front & blink at a faster rate. Even one side headlight engagement was replaced and the problems still exist.
Tl contact owns a 2002 Buick Century. The contact stated a piece of fuel injection detached and blew off the valve. The check engine light illuminated and the vehicle was taken to a mechanic. The repair cost $1,200. The technician stated that he had never seen anything like this and it should not have happened to her vehicle. The contact has not notified an authorized dealer or the manufacturer. The current and failure mileages were 59,263. Updated 02/01/08.
When I have cruise control on but not in use at that moment the car will engage cruise on its own. It does this at a high rate of acceleration with no Rhyme or Reason as to why. I have to be quick to get it to stop because of the high rate of speed. I do not use the cruise control anymore on my vehicle because of being unsafe. I have been lucky a couple of times I have not rammed into the vehicle in front of me through no fault of mine except for having cruise control on. No it has not been examined or inspected. The problem has not been confirmed by the dealership or and independent service center. It has been confirmed by various drivers of my car. None of them will use cruise control anymore.
Tl* the contact owns a 2001 Buick Century. The contact stated that there was an overpowering gasoline odor emitting from the engine. In addition, the vehicle was burning excessive amounts of gasoline fuel. The contact replaced the fuel pressure regulator to repair the failure. The failure and current mileage was 160,897. Updated 4/11/2011 updated 04/25/11
Tl* the contact owns a 2000 Buick Century. The contact stated that while driving at low speeds, there was an abnormal odor inside of the vehicle. The vehicle was taken to an independent mechanic who diagnosed the vehicle and determined that the fuel pressure regulators failed and needed to be replaced. The dealer also became of fuel leaking form the fuel line. The vehicle was not repaired. The contact referenced NHTSA campaign number: 07e021000 (fuel system, other) as a possible solution to the failure however, the VIN was not included. A dealer was not contacted. The manufacturer was not made aware of the failure. The failure mileage was approximately 56,000.
Related recalls (1)
Fuel system, gasoline › Storage › Tank assembly › Filler pipe and cap
Vehicle description: passenger vehicles. The clamp that secures the flexible fuel fill hose to the metal fill tube May be loose and could separate.
Remedy: Dealers will inspect the fuel hose fill neck clamp and, if necessary, reposition and tighten the clamp.
Frequently asked questions
Which Buick Century years have fuel system problems?
By NHTSA complaints, the 1998 (12), 1996 (11), 1999 (11), 2000 (9) and 2002 (7) model years. Fuel System complaints make up 6% of all complaints for the 1998.
Is there a recall for Buick Century fuel system problems?
Yes — 1 recall, including 00V-160 (filler pipe and cap, Jun 16, 2000). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.
At what mileage do Buick Century fuel system problems start?
Across all years, half of the complaints with a recorded mileage happened before about 86,000 miles; 8% happened before 50,000 miles.
What part fails most often?
Owners most often name the delivery › hoses, lines/piping, and fittings (12 mentions), followed by the fuel injection system (8).
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.