One problem related to emission control has been reported for the 2000 Buick Regal. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Buick Regal based on all problems reported for the 2000 Regal.
2000 Regal Buick with low mileage didn't pass nh state inspection because of code p0440 evaporation emission control system. When looking at gm recall there were 248 other 2000 Buick recalls with the same issue reported to general motors. This code has to do with the fuel system, gas lines and storage tank and can be very dangerous and catch the car on fire. I did call gm and filed a claim but they really don't care. Also there is a steering/suspension steering linkage free play. When doing research on this there was a recall (76128) and 979 people also reported this issue.