NHTSA — Engine And Engine Cooling Problems

CarComplaints.com Notes: The Buick Rainier is a replacement for the Oldsmobile Bravada, hopefully minus the transmission issues and AWD complaints.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
52,000 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.

2004 Buick Rainier engine problems

engine problem

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2004 Buick Rainier Owner Comments

problem #2

May 152011


  • 69,000 miles


Noises coming from under the hood; rattle, jingle, clunk; constant. Sounds like metal in a washing machine, but fine driveability and comfortable sounding highway driving. Driving in parking garage is noisy when accelerating, and quiet when coasting. Noise is quieter when ac is off. Noise is louder when accelerating, or at idle. After 30 minute drive, check engine light came on. Auto store gave codes that showed replacement of engine cooling fan clutch or ev fan motor. Less than 70K miles.

- Marietta, GA, USA

problem #1

Aug 152007


  • 35,000 miles
The contact owns a 2004 Buick Rainier. While driving 70 mph, the speedometer will display speeds between 20-120 mph. While driving various speeds on the freeway, the speed will decrease on its own. The contact must literally stand on the accelerator pedal to maintain a steady speed. While idling at a stop sign or light, the engine continues to rev. The contact scheduled an appointment with the dealer for June 23, 2008 to diagnose the failures. The current mileage was 41,000 and failure mileage was 35,000.

- Castro Valley, CA, USA

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