Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING
03060101003/01/200310001282Engine oil or coolant leak. *tt04/25/2003
ENGINE AND ENGINE COOLING - ENGINE
04060200708/01/200410011207Low engine coolant level indicator always on. *tt01/10/2005
31803180A10010868Dealers may comment on a chuggle, surge, misfire condition. *tt12/15/2004
0135301/01/200401353A10007937Engine misfire due to injector fretting corrosion. *tt07/16/2004
0153301/01/200410005449Engine start and stall after fueling with no diagnostic trouble codes (dtcs). sit bulletin 1408781. *tt02/27/2004
000604049B12/01/2003000604049A10005145Some vehicles built prior to vin breakpoint 1f136536 may exhibit intermittent malfunction indicator lamp / service engine soon indicator illumination; anti-lock brake system warning light illumination; stall / no start condition; various el02/09/2004
03-06-01-01004/01/2008030601010C10004768Engine oil or coolant leak. *tt gm reminder. *tt install new lower intake manifold gasket. updated 7/18/08 *pe01/06/2004
03060403003/01/2007030604030C10002166Multiple driveability symptoms of long or hard starts, chuggle, rough idle and light or intermittent misfire due to clogged fuel injectors. *tt08/14/2003
010601008A05/01/2002010601008634813Some owners may comment on a repeat engine oil pan leak. *tt10/09/2002
01060100802/01/2001619177Some owners may comment on a repeat engine oil pan leak. *tt05/17/2001
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE
02060101404/01/2002634708Subject regarding revised lower intake manifold installation. *tt10/07/2002
02060401403/01/2002632322Subject regarding the elimination of the service bay test procedure. *tt07/12/2002
000605049A03/01/2002000604049631274Subject regarding various driveability symptoms, malfunction indicator lamp illuminates intermittently, diagnostic trouble codes seat, engine will not start. *slc05/21/2002
010601010A06/01/20010106010101620810Subject regarding polymer service pistons. *tt08/30/2001
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
02060500102/01/2002629447Some owners may comment on an exhaust system ping/crackle/snap type noise that is audible for a short period of time after the engine is turned off. *tt04/02/2002

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE
05/25/201283249
 Vehicle exhibited hard transmission shifts and jerking while shifting in traffic. vehicle was taken to an independant mechanic and diagnosed with code p1811, which indicates high transmission fluid pressure and solonoid problems.
ENGINE AND ENGINE COOLING
08/13/20091490841
 Air pollution pump failure causing fuse to blow and car to bump when stepping on gas/anti lock control-pressure modulator valve malfunction. *tr
03/18/200897000107/01/2006
 Tl*the contact owns a 2000 buick century. whenever the contact would park the vehicle in her garage, she would smell hot water coming from the radiator. she did not notice any differences in the vehicle prior to the odor. the vehicle was serviced by a local mechanic, and was never diagnosed by the dealer. the failure mileage was 97,000. updated 08/20/08 *bf the consumer was informed the intake manifold gaskets needed to be replaced, which was a common problem with gm vehicles. updated 08/21/08 *jb
11/09/200564218405/04/2001
 Tl*- the contact owns a 2000 buick century custom and complained about the following problems: the lower intake manifold gasket, the thermostat, and water pump. these components had to be replaced because the vehicle was overheating. the rear brake shoes and a leaking cylinder also had to be replaced. the rear drums, and the switch on the driver's side for the power windows where replaced due to possible fire concerns. in addition, the right outer tie rod end on the passenger's side wheel was loose and had to be repaired. since the vehicle was inherited in 2003 all the aforementioned failures had to be replaced or repaired starting in 2005. the contact spoke with the manufacturer, and they stated they would not reimburse the contact because there was no relationship established with the dealer since the vehicle was purchased. the current mileage was 74,442, and the failure mileage was 64,218.*ak the consumer has provided invoices of services and checked with gm to see if there was a recall on the gasket manifold, however she was informed no recall was issued for that part. update 05/10/07*tr
11/28/200350050104/18/2003
 2000 buick century , 3.1 head gasket leaks at 50,000 miles.*ak
04/23/2003
 The vehicle over heated while driving. the vehicle was taken tot he dealer who stated that the intake manifold broke and caused oil to leak into the cooling system. *nlm *ts
ENGINE AND ENGINE COOLING - COOLING SYSTEM
10/15/20041
 Dealer advised of coolant leak at a lower engine seal. i have since learned that this is a defect related to use of incorrect seals. the seals are eaten by the coolant (dexcool). i was quoted a price of $800 to fix the problem. i feel that this is a manufacturer's defect.*ak
ENGINE AND ENGINE COOLING - ENGINE
05/01/2008740001
 There is oil in radiator, had system cleaned flushed out and refilled and 2 weeks latter it is full of oil again. *tr
03/30/2004609351
 Problems with engine on 2000 buick century. *mr the vehicle's engine block cracked. *nm
04/15/20031
 The vehicle experienced the same problem as stated in tsb #020601014, however the dealer refused to correct the problem, because the vehicle identification number was not included. *jb
505/09/2000
 Whenever vehicle was cold started, there would be a tapping noise. have taken vehicle to dealership twice. had factory representative down & was informed that problem was normal. also, mechanic tested other vehicles on a cold start, and here was no tapping noise coming from engine.*ak tapping sound in the engine has increased in loudness and duration on cold starts. the dealer installed a synthetic oil and fram oil filters. *yh
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE
02/13/2001710/28/2000
 When driving vehicle drifts to the right. dealer has seen vehicle seven times, and tried to correct. but, problem still exists.*ak consumer states there is a noise coming from rear of vehicle when in reverse and braking, ac is not blowing cold, consmer states front end is low to the bottom makes a nosie whenwhen in reverse, the button on the steering wheel and the radio does not sto on station, consumer states it takes to long for vehicle to start at times.*jb
04/01/20008
 Vehicle has extreme burning oil smell coming through vents after oil change, dealer replaced engine's rear main seal but did not correct problem, consumer has contacted manufacturer but has not received a response. *jb
01/01/2001101/24/2001
 Vehicle was making a knocking and humming noise under normal operation. dealership has looked at vehicle and said that there was no defect in engine. *slc
202/01/2000
 2 defective engines(replaced) 1st at 1500 mi. 2nd at 2784mi. still engine misses stalls. nhtsa provided to us campaign r#00v143000 that buick centuries have rear brake problems and g.m. would recall starting july 2000--g.m. tells us no recalls invovling our vehicle--it was built 11/99 in oshawa canada--please straighten us out on this--is /is not a ny recall on our vehicle
09/01/20000
 Consumer driving down on highway vehicle just died, causing it to run off the road and into some trees.*ak
1
 The engine was defective resulting in a metallic noise. nlm
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
06/25/20031
 Consumer states the exhaust pipe is very close to the fuel line. dealer not notified.
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - MANIFOLD/HEADER/MUFFLER/TAIL PIPE
06/05/200432850109/30/2002
 While the vehicle was parked driver noticed fluid leaking from underneath the vehicle. it was taken to the dealer for inspection, mechanic determined that the intake manifold needed to be replaced. *ak intake manifold gasket failed. the consumer stated that cooling fluid on garage floor. *tc
04/05/200436200007/13/2003
 Service engine light came on and have been experiencing a clunking hesitation when accelerating anywhere from 10 to 45 mph. took car to dealer on 4/5/04 and service manager went for a test drive with me and he definitely felt the problem. when tech ran computer check he said two codes came back and that the fuel sensor had to be replaced and it was not covered by my extended warranty or the emissions warranty. i had the work done and the service manager said that may have been what was causing the problem and to call if it did not resolve. i drove the car the next day and was still having original problem. they set up appt again to have a tech go with me on another test drive. this was on 4/10/04. the service manager had the shop foreman go with me on a test drive and he also felt the clunking hesitation and said they would run some more tests and that it may be a solenoid related to the transmission. i phoned the dealer on monday afternoon 4/12/04 to see if the diagnosed the problem yet, after being put on hold and then disconnected i called back. this time i got service manager's voice mail and left a message that i was still waiting to hear about my car. no one returned my call. on tuesday afternoon 4/13/04 i phoned the dealer again and then was connected to service manager who then proceeded to tell me that they found a problem and that they drove a few more buick century models that they had on their lot and that the clunking noise was normal for my car but that it was just more pronounced in my car. he then went on to say that they found a leaking manifold gasket , both upper engine mounts loose and the passenger side lower engine mount loose. my 2000 buck century custom has only 36,600 miles. i purchased the car in august of 2003 from the dealer and the mileage was just slightly over 31,000 when i purchased the vehicle.