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Engine coolingPart report

1998 Buick Century Engine cooling Problems

Complaints
22about this part
Share
10%of 218 total for the year
Median mileage
53,360miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 22 complaints about the engine cooling of the 1998 Buick Century, 10% of the 218 complaints for this model year. Where a mileage was given, the median is 53,360 miles. 1 of these say a crash was involved, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“After noticing a few drops of dexcool coolant on the garage floor, I checked the reservoir. It was empty. I checked for leaky hoses or clamps, then noticed that around some gasket I could see where coolant was obviously oozing and some had pooled in a recess in the engine mold. Anyway, I refilled the reservoir with dexcool and took the car to a local repair shop before doing any damage. The repair bill came to over $900. The car is only 5 years old and it needs a new intake manifold gasket, how absurd. …”

NHTSA complaint #10070033, filed 2004-01, 76,020 miles

“I own a 1998 Buick Century custom. I am the original owner and am very good about proper maintenance. Last week my husband noticed a few drops of coolant on the garage floor. He cleaned it up and agin the next day, a few more drops. He checked the hose clamps and hose conditions, they were fine. He checked the reservoir where you put in dexcool, it was dry. He filled the reservior and drove the car immediately to our local mechanic so we would not do any engine damage. After 2 days and $800, the car has been fixed. …”

NHTSA complaint #10008001, filed 2003-02, 76,020 miles

“Overheating engine & ticking sound. Took to dealer twice before the warranty expired. Always a little bit of repair. After warranty expired same problem but then needed over 600.00 in repairs. Later same problem 300.00 in repairs. Always thermostat or water pump. The temp gauge goes up and low coolant light came on, same as before, a mechanic was at the cafe I work at & looked at the car. He stated that there was oil in the radiator & that he had seen this problem from these GM products many many times and that I would have to have a new engine. Added coolant & it lasted a little while. …”

NHTSA complaint #10171781, filed 2006-10, 32,000 miles

“Brought vehicle to dealership for brake inspection. Was informed the lower intake gasket was leaking coolant. Had it replaced by dealership on 03/07/2006. On 06/28/2010, the same issue seems to be re-occurring. Should an intake gasket need replacing 2x's under normal driving conditions?”

NHTSA complaint #10341128, filed 2010-07, 59,721 miles

“Engine dies while driving, losing both steering and braking ability. This has happened three times within the past four weeks. Taken to three different mechanics, none being able to determine the problem. This is an extreme hazard, not only to my daughter who is the principle driver, but also to all drivers/cars driving nearby, as it could lead to a serious accident.”

NHTSA complaint #10177435, filed 2007-01, 47,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2005211%
20031310%
20022516%
20012719%
20002111%
19995523%
19982210%
199777%
1996911%
19951111%
19941413%
19931019%
199249%
1991513%
1990515%
1989513%
1987311%
1986627%
1985343%
1984225%

Other parts of the 1998 Buick Century

Brakes
29 complaints
Electrical system
26 complaints
Transmission and drivetrain
26 complaints
Visibility (wipers, defrost, mirrors)
25 complaints
Steering
24 complaints
Exterior lighting
21 complaints
Other or unknown
16 complaints
Fuel system
12 complaints
Seat belts
12 complaints
Body and structure
11 complaints
Air bags
10 complaints
Equipment
8 complaints

← All problems reported for the 1998 Buick Century

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