1986 Cadillac Deville Engine cooling Problems
- Complaints
- 9about this part
- Share
- 41%of 22 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the engine cooling of the 1986 Cadillac Deville, 41% of the 22 complaints for this model year.
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.
“Car developed an oil leak, I thought it was the oil pan gasket. Took it to a dealership who changed the oilpan gasket. It still leaked oil, so I removed the engine. I discovered that the block had a crack from the crank shaft to the cam shaft on the rear of the engine. I tried to aluminum weld it once, but it still leaked.”
NHTSA complaint #721437, filed 2000-04“While driving into the driveway upon returning from work, parked the vehicle, noticed a puddle of water underneath. Lifted up the hood, could see water coming out of the engine cylinder gasket.”
NHTSA complaint #858424, filed 2000-03Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2005 | 3 | 3% |
| 2004 | 5 | 3% |
| 2003 | 10 | 7% |
| 2002 | 24 | 14% |
| 2001 | 38 | 22% |
| 2000 | 52 | 23% |
| 1999 | 47 | 25% |
| 1998 | 33 | 14% |
| 1997 | 47 | 17% |
| 1996 | 40 | 18% |
| 1995 | 18 | 14% |
| 1994 | 34 | 27% |
| 1993 | 8 | 9% |
| 1992 | 24 | 18% |
| 1991 | 15 | 17% |
| 1990 | 9 | 12% |
| 1989 | 8 | 17% |
| 1988 | 4 | 14% |
| 1987 | 18 | 45% |
| 1986 | 9 | 41% |
| 1985 | 6 | 32% |
| 1984 | 2 | 33% |
| 1983 | 2 | 40% |
Other parts of the 1986 Cadillac Deville
3 complaintsTransmission and drivetrain
3 complaintsElectrical system
2 complaintsVehicle speed control
2 complaintsFuel system
1 complaintsLatches, locks and linkages
1 complaintsSeat belts
1 complaintsSteering
1 complaintsBody and structure
1 complaints
← All problems reported for the 1986 Cadillac Deville
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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