Buick Rainier owners have reported 1 problem related to emission control (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Buick Rainier based on all problems reported for the Rainier.
With vehicle temperature at normal range, in park and at normal idle when I push on the gas pedal the rpm would drop to under 500 and then go back up, almost like a hesitation of sorts. Took vehicle to Buick dealer and was told that it was the secondary air pump, basically the egr valve. Was told this was part of the emissions of the vehicle but not covered under the emissions warranty nor would my extended warranty cover as well. Vehicle has 46,403 miles on it.
See
all problems of the 2004 Buick Rainier
🔎.
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling problems | |
| Engine Stall problems | |
| Engine problems | |
| Car Stall problems | |
| Check Engine Light On problems | |
| Cooling Fan problems | |
| Emission Control problems | |
| Engine Clicking And Tapping Noises problems | |
| Gasoline Engine problems | |
| Engine Funny Noise problems |