1993 Pontiac Bonneville Engine cooling Problems
- Complaints
- 20about this part
- Share
- 14%of 138 total for the year
- Median mileage
- 225,532miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 20 complaints about the engine cooling of the 1993 Pontiac Bonneville, 14% of the 138 complaints for this model year. Where a mileage was given, the median is 225,532 miles. 5 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Had the hood open and tried to start car. Car made loud boom and blew off plastic intake manifold and ball of flame shot up. My children were nearby and plastic parts went shooting all around nearby area.”
NHTSA complaint #10054251, filed 2004-01, 218,000 miles“The contact owns a 1993 Pontiac Bonneville. The contact took her vehicle to midas for a routine oil change. A few hours later, the vehicle shut off while driving. The vehicle was towed and the technician stated that the vehicle's oil was black. The technician stated that the oil change was not the cause of the failure, but could possibly result from engine failure. As a result, midas fails to reimburse the contact. The vehicle would start, but made a loud knocking noise. The contact has the receipt and paperwork from the event. The VIN was unavailable. …”
NHTSA complaint #10190306, filed 2007-05, 233,065 miles“Tranmission oil cooling lines, during normal operation, develop a hole due to to vibration/rubbing on a guide bracket which is mounted to the front of the engine block. Transmission oil leaks out, wetting down the underside of car and inner area of the front wheel, in the area of the disc brake. Car was serviced at seelye wright Pontiac, south haven, michigan, to replace pipe.”
NHTSA complaint #716820, filed 2000-01“While driving about 40-45 MPH, driver noticed smoke coming from the back area of vehicle. When driver stopped to check out conditions, there was a fire coming from under the vehicle, and the whole front end of the vehicle burned. The vehicle was totalled.”
NHTSA complaint #818551, filed 1998-01“Perfect woriking condition; half an hour after being parked the vehicle caught on fire under the hood. Consumer states recall 95-c-68 was completed in may of 1996 regarding the replacement of a cooler hose, consumer states this could have caused an engine fire.”
NHTSA complaint #804925, filed 1996-11Related recalls
- 96V015000Jan 23, 1996Vehicle description: passenger vehicles manufactured from august 1991 through july 1995. The transmission oil cooler line can separate when the vehicle is…Covers: Pontiac Bonneville 1992–1993, Oldsmobile Silhouette 1992–1995, Chevrolet Lumina APV 1992–1995 +5 more
Related service bulletins
- 10246631Sep 1, 2013Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2005 | 1 | 4% |
| 2004 | 2 | 7% |
| 2003 | 6 | 11% |
| 2002 | 10 | 11% |
| 2001 | 22 | 17% |
| 2000 | 37 | 17% |
| 1999 | 59 | 41% |
| 1998 | 194 | 70% |
| 1997 | 50 | 34% |
| 1996 | 43 | 29% |
| 1995 | 55 | 23% |
| 1994 | 14 | 16% |
| 1993 | 20 | 14% |
| 1992 | 9 | 8% |
| 1991 | 3 | 14% |
| 1990 | 1 | 3% |
| 1989 | 1 | 4% |
| 1987 | 3 | 16% |
Other parts of the 1993 Pontiac Bonneville
45 complaintsElectrical system
18 complaintsTransmission and drivetrain
18 complaintsBody and structure
10 complaintsSeat belts
8 complaintsVehicle speed control
8 complaintsAir bags
7 complaintsSteering
6 complaintsFuel system
5 complaintsVisibility (wipers, defrost, mirrors)
5 complaintsExterior lighting
4 complaintsTires
3 complaints
← All problems reported for the 1993 Pontiac Bonneville
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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