1999 Buick Park Avenue Engine cooling Problems
- Complaints
- 39about this part
- Share
- 28%of 140 total for the year
- Median mileage
- 42,500miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 39 complaints about the engine cooling of the 1999 Buick Park Avenue, 28% of the 140 complaints for this model year. Where a mileage was given, the median is 42,500 miles. 10 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My 1999 Park Avenue suddenly started to run ruff, causing me to take the vehicle to a GM dealer who replaced the spark plugs and wires, as well as two ignition coils. He stated that the plugs had indication of burns that are attributed to anti freeze coming in contact with the plugs. During the repair he also indicated that he noticed anti freeze on the outside of the engine in the area of the plenum. The repairman stated that this is a common problem with the 3800 motor, that the plenum leaks causing associated problems due to the anti freeze coming in contact with engine components. …”
NHTSA complaint #10258452, filed 2009-02, 101,500 miles“Plastic upper intake manifold failed flooding engine interior with coolant. Engine locked up. Vehicle operator was accelerating from idle to enter traffic when engine lock up occurred, but luckily had not yet entered traffic. Mechanic informed owner that this is a common failure for Buick park avenues with mileage above 90,000 miles. Repairs exceeded $1,100.”
NHTSA complaint #10175006, filed 2006-12, 103,134 miles“Plastic intake manifold failure occurred on 1999 Buick Park Avenue with approximately 45,000 miles. Coolant leaked into the engine and resulted in a misfire code in multiple cylinders. Symptoms experienced by the driver were a rough idle at start for 30 seconds, and the service engine soon light would come on, sometimes staying on and sometimes extinguishing after 15 seconds. The car was immediately driven for service. …”
NHTSA complaint #10246657, filed 2008-10, 45,000 miles“While driving the vehicle stalled and the check engine light illuminated. The vehicle was taken tot eh dealer where it was determined that the engine intake manifold had a design defect which caused premature gasket failure. That failure caused coolant to leak into the engine manifold and burn in the engine. The vehicles A/C compressor also failed.”
NHTSA complaint #10024940, filed 2003-07, 42,000 miles“When the consumer attempted to start the vehicle a loud explosion occurred. The explosion destroyed the upper intake manifold plenum, fuel rail and fuel pressure regulator. The consumer paid to repair the engine and other damaged parts. The dealer and manufacturer refused to reimburse the consumer for the repairs. The manufacturer has not determined the cause.”
NHTSA complaint #10026405, filed 2003-07, 35,535 milesRelated service bulletins
- 10246631Sep 1, 2013Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
- 10012115Jul 1, 2004Availability of exhaust muffler for service.
- 10012148Jun 1, 2004New rear main seal and special tool for installation.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 7 | 21% |
| 2002 | 4 | 13% |
| 2001 | 6 | 11% |
| 2000 | 14 | 17% |
| 1999 | 39 | 28% |
| 1998 | 97 | 39% |
| 1997 | 44 | 20% |
| 1996 | 9 | 15% |
| 1995 | 16 | 14% |
| 1994 | 4 | 8% |
| 1993 | 12 | 19% |
| 1992 | 11 | 14% |
| 1991 | 7 | 8% |
| 1990 | 1 | 8% |
| 1989 | 1 | 5% |
| 1988 | 1 | 5% |
| 1987 | 4 | 31% |
| 1986 | 1 | 17% |
| 1985 | 3 | 30% |
Other parts of the 1999 Buick Park Avenue
19 complaintsSeat belts
17 complaintsElectrical system
16 complaintsBrakes
15 complaintsBody and structure
9 complaintsSteering
7 complaintsTires
7 complaintsSuspension
6 complaintsTransmission and drivetrain
6 complaintsEngine
4 complaintsLatches, locks and linkages
4 complaintsVehicle speed control
3 complaints
← All problems reported for the 1999 Buick Park Avenue
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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