Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


fairly significant
Typical Repair Cost:
No data
Average Mileage:
84,750 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. not sure (2 reports)
1999 Buick Century engine problems

engine problem

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1999 Buick Century Owner Comments

problem #2

Oct 012014

Century Custom 3100 Sfi V6

  • Automatic transmission
  • 96,500 miles


I've fixed everything the diagnostic computers have indicated need to be fixed or replaced, but STILL the light stayed ON!!! AND it BLINKS about 97% of the time!!! SUPER ANNOYING!!!!!

- , Sarasota, FL, USA

problem #1

Aug 152011

Century V6

  • Automatic transmission
  • 73,000 miles

need help--engine code is p 440-emissions--i replaced gas cap and evap canister purge solenoid valve.service engine soon is still on---i ck'ed 1/4"free standing hose at rear of car above left side of gas tank.must be a vent hose? that seemed to be clogged up.i cleaned out w/wire as best i could.also ck'ed vacuum hoses,all seem to be ok,no leaks found. what nxt ? anyone have any ideas ---thanks joe

- , Beverly, MA, USA

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