1999 Cadillac Eldorado Engine cooling Problems
- Complaints
- 5about this part
- Share
- 42%of 12 total for the year
- Median mileage
- 89,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the engine cooling of the 1999 Cadillac Eldorado, 42% of the 12 complaints for this model year. Where a mileage was given, the median is 89,500 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.
“While driving the service engine light and the low coolant light comes on, then the vehicle overheats. This is because the vehicle is losing coolant. The vehicle has been serviced by the dealership 4 times, in which the radiator and the water pump has been replaced and the pressure tested. However, the problem still occurs.”
NHTSA complaint #10071889, filed 2004-04, 123,000 miles“The vehicle stalled while driving at various speeds of 25 MPH or more. Also the consumer had a concern that the tail lights would go out when this problem occurred while driving at night. The vehicle has been to the dealer on five separate occasions and they were unable to correct the problem. .”
NHTSA complaint #10097228, filed 2004-10, 36,000 miles“While driving at any speed check engine light came on and stayed on. Dealer examined the vehicle and extinguished the check engine light by servicing the engine. Then, engine ran roughly. Vehicle was towed to the dealer. Who informed the consumer that the head gasket was blown.”
NHTSA complaint #10080117, filed 2004-06, 56,000 miles“The contact owns a 1999 Cadillac Eldorado. While driving 55 MPH, the vehicle started to overheat. The vehicle was taken to the dealer who performed a diagnostic test and found that the water pump and the over pipe gasket were leaking. They replaced the water pump, the over pipe gasket and the thermostat but the failure continued to recur. The vehicle was taken back to the dealer who stated they were unable to find the problem for the failure and to take the vehicle to another mechanic to get a second opinion. The manufacturer was notified who offered no assistance. …”
NHTSA complaint #10423021, filed 2011-09, 184,320 miles“Vehicle stalled on its own. Consumer noticed that the lights appeared on the dashboard and remained on. Consumer took vehicle to dealer dealer for inspection, but mechanic could not duplicate the problem.”
NHTSA complaint #10097800, filed 2004-10Related service bulletins
- 10246631Sep 1, 2013Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
- 10020584Oct 19, 2006Knockig noises or excessive oil consumption. Vehicles with ld8 or l37 4.6l v8 engines.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2002 | 1 | 10% |
| 2001 | 3 | 17% |
| 2000 | 9 | 39% |
| 1999 | 5 | 42% |
| 1998 | 2 | 13% |
| 1997 | 5 | 16% |
| 1996 | 4 | 13% |
| 1995 | 3 | 10% |
| 1994 | 1 | 10% |
| 1993 | 1 | 20% |
| 1992 | 1 | 20% |
Other parts of the 1999 Cadillac Eldorado
← All problems reported for the 1999 Cadillac Eldorado
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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