There are 4 stored owner reports matching the engine leading-label group for the 2004 Buick Rainier in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)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.
TL*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.
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. *TR
DT: CONSUMER WAS DRIVING ALONG AND VEHICLE STARTS SPUTTERING AND THEN DIED OUT IN THE ROAD. AFTER THE 1ST INCIDENT VEHICLE WAS TAKEN TO DEALER FOR REPAIRS. THE DRIVER DROVE THE VEHICLE FOR ABOUT TWO MONTHS AND IT HAPPENED AGAIN. THE VEHICLE WAS TAKEN BACK TO DEALER WHO INDICATED THEY COULDN'T FIND ANYTHING WRONG. THE MANUFACTURER WAS CONTACTED AND THEY SUGGESTED THAT THE CONSUMER GET A SECOND OPINION. THE CONSUMER HAS PARKED THE VEHICLE BECAUSE HE IS AFRAID TO DRIVE IT FOR SAFETY REASONS. *NM
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.