1998 Buick Riviera Engine cooling Problems
- Complaints
- 2about this part
- Share
- 7%of 29 total for the year
- Median mileage
- 56,513miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 1998 Buick Riviera, 7% of the 29 complaints for this model year. Where a mileage was given, the median is 56,513 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 1998 Buick Riviera. While entering the vehicle, the contact noticed engine oil on the ground under the vehicle. The vehicle was taken to the dealer where it was diagnosed that the valve cover gasket failed and needed to be replaced. The vehicle was repaired. The VIN was not included in NHTSA campaign number: 15v701000 (engine and engine cooling). The manufacturer was made aware of the failure. The failure mileage was 56,513. Updated 04/29/16”
NHTSA complaint #10850080, filed 2016-03, 56,513 miles“Consumer purchased two new tires due to flats and the lost of air in a tire that could not be replaced. The first tire went flat four times due to wear around the wheel covering (tire info not given).”
NHTSA complaint #562951, filed 2001-09Related service bulletins
- 10246631Sep 1, 2013Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
- 10012148Jun 1, 2004New rear main seal and special tool for installation.
Engine cooling: other model years
Other parts of the 1998 Buick Riviera
7 complaintsBrakes
6 complaintsEngine
4 complaintsElectrical system
3 complaintsSeats
3 complaintsTires
3 complaintsTransmission and drivetrain
3 complaintsFuel system
2 complaintsVehicle speed control
2 complaintsEquipment
1 complaintsOther or unknown
1 complaintsSeat belts
1 complaints
← All problems reported for the 1998 Buick Riviera
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology