1999 Saturn SC Engine cooling Problems
- Complaints
- 7about this part
- Share
- 29%of 24 total for the year
- Median mileage
- 55,657miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the engine cooling of the 1999 Saturn SC, 29% of the 24 complaints for this model year. Where a mileage was given, the median is 55,657 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.
“I called Saturn to say my low coolant light came on during a trip. Saturn suggested a pressure test. Saturn states pressure tested cooling system/no external leaks found/removed cam cover and found a crack in cylinder head at cam#5 journal, causing oil and coolant to mix together/needs new cylinder head,thermostat,water pump,flush of cooling system and oil & filter. The service invoice states no oil change per customer request . I was never asked if I wanted an oil change on 11/28; the fact is I had an oil change at Saturn 11/18!!!! …”
NHTSA complaint #10065991, filed 2004-04, 58,000 miles“While driving the vehicle overheated and the check engine light illuminated on the dashboard. The consumer received a letter from the manufacturer which stated that some vehicle equipped with 1.9 liter engines may develop a crack internal to the cylinder head. The letter also stated that this special policy provided coverage for a period of 6 years/100000 miles. At approximately 45000 miles a crack was discovered. The dealer refused to repair the vehicle until the consumer authorized a $500. Diagnostic. The consumer refused.”
NHTSA complaint #10020301, filed 2003-05, 45,467 miles“I took my 1999 Saturn sc1 in to the dealer for a resonator replacement and wheel rotation and balance at 49,091 miles. The dealer called me to say the upper engine mount had to be replaced. Last week, when we took my wife's 1996 sl1 in for engine noise, we were also told we had to replace the engine mount. With my 1999 sc1, it has been taken in for all regularly scheduled maintenance -- why does the engine mounts on saturns need replacing?.”
NHTSA complaint #10016241, filed 2003-04“While driving vehicle stalled. Consumer was able to restart vehicle, and drove it to the dealer for inspection. Mechanic determined that the cylinder head cracked from the engine, and needed replacement.”
NHTSA complaint #10090121, filed 2004-09“Purchased car june of 2004. Car was one day old and the fuse panel had to be replaced. Then oil was having to be added. Called Saturn and was informed Saturn cars have a been know to go through oil. Car seemed to be running hot added coolent to notice the coolent seemed to be thick with oil. Flushed system added new coolent. Car ran even hotter was told oil in radiator, need to put in new radiator. Did this and problem was not fixed. Was then told heads were cracked. Called Saturn after seeing numerous people on web site with same exact problem. …”
NHTSA complaint #10128938, filed 2005-07Related 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 |
|---|---|---|
| 2002 | 4 | 11% |
| 2001 | 4 | 19% |
| 1999 | 7 | 29% |
| 1998 | 3 | 23% |
| 1997 | 5 | 15% |
| 1996 | 6 | 23% |
| 1995 | 3 | 8% |
| 1994 | 4 | 8% |
| 1993 | 3 | 13% |
| 1992 | 1 | 6% |
| 1991 | 2 | 40% |
Other parts of the 1999 Saturn SC
4 complaintsSeats
3 complaintsElectrical system
2 complaintsSeat belts
2 complaintsBody and structure
2 complaintsTransmission and drivetrain
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsTires
1 complaints
← All problems reported for the 1999 Saturn SC
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