NHTSA — Engine And Engine Cooling: Exhaust System: Manifold/Header/Muffler/Tail Pipe Problems


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
34,525 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2000 Buick Century exhaust system problems

exhaust system problem

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2000 Buick Century Owner Comments

problem #2

Jun 052004

Century 6-cyl

  • Automatic transmission
  • 32,850 miles


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. Intake manifold gasket failed. The consumer stated that cooling fluid on garage floor.

- Spring Hill, FL, USA

problem #1

Apr 052004

Century 6-cyl

  • Automatic transmission
  • 36,200 miles
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.

- Cheektowaga, NY, USA

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