NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
47 reportsClear category filter28,000 miles · Oct 13, 2008
Engine And Engine Cooling
WHILE DRIVING VEHICLE REACHED HIGH TEMPERATURES. HAD RADIATOR REPLACED AND THERMOSTAT. THE CAR STILL OVERHEATS. TOOK THE CAR TO TECHNICIAN WHO SUGGESTED TO REPLACE THE ENGINE WHICH WOULD COST $7,000. THROUGH ONLINE RESEARCH, MY DAUGHTER DISCOVERED THE CADILLAC DEVILLE 1999 NORTHSTAR MODEL/VEHICLE HAS NUMEROUS ISSUES DUE TO O…
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WHILE DRIVING VEHICLE REACHED HIGH TEMPERATURES. HAD RADIATOR REPLACED AND THERMOSTAT. THE CAR STILL OVERHEATS. TOOK THE CAR TO TECHNICIAN WHO SUGGESTED TO REPLACE THE ENGINE WHICH WOULD COST $7,000. THROUGH ONLINE RESEARCH, MY DAUGHTER DISCOVERED THE CADILLAC DEVILLE 1999 NORTHSTAR MODEL/VEHICLE HAS NUMEROUS ISSUES DUE TO OVERHEATING AND HEAD GASKETS. *TR
NHTSA ODI #10245213
130,000 miles · Sep 18, 2008
Engine And Engine CoolingSuspensionVisibility
TL*THE CONTACT OWNS A 1999 CADILLAC DEVILLE. WHILE DRIVING BETWEEN 60-70 MPH, THE VEHICLE WOULD SHIMMY DRASTICALLY. THE INDEPENDENT MECHANIC ADVISED THE CONTACT NOT TO DRIVE THE VEHICLE OVER 50 MPH. THE FRONT TIE ROD WAS REPLACED AND A SEMI-ALIGNMENT WAS PERFORMED. THE AXLE HUB CARRIER REAR SUSPENSION WAS FAULTY AND THE COIL…
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TL*THE CONTACT OWNS A 1999 CADILLAC DEVILLE. WHILE DRIVING BETWEEN 60-70 MPH, THE VEHICLE WOULD SHIMMY DRASTICALLY. THE INDEPENDENT MECHANIC ADVISED THE CONTACT NOT TO DRIVE THE VEHICLE OVER 50 MPH. THE FRONT TIE ROD WAS REPLACED AND A SEMI-ALIGNMENT WAS PERFORMED. THE AXLE HUB CARRIER REAR SUSPENSION WAS FAULTY AND THE COIL SPRING WAS ALSO DAMAGED. LATER, THE WINDSHIELD WIPERS WOULD NOT OPERATE AND, UPON FURTHER INVESTIGATION, IT WAS DISCOVERED THAT THE WIPERS WERE WIRED INCORRECTLY. WHILE DRIVING LESS THAN 50 MPH, THE CHECK OIL WARNING LIGHT ILLUMINATED BECAUSE THERE WAS NO OIL IN THE VEHICLE. THE FAILURE MILEAGE WAS 130,000 AND CURRENT MILEAGE WAS 132,000. UPDATED 10/14/08 *BF UPDATED 10/24/08. *JB
NHTSA ODI #10242794
75,000 miles · Sep 1, 2008
Engine And Engine CoolingFire
WHILE SITTING IN FRONT OF MY HOME MY 1999 CADILLAC DEVILLE CAUGHT ON FIRE AND BURNT TO A TOTAL LOSS. THE CAR WAS PARKED, HAD NOT BEEN DRIVEN FOR ABOUT 48 HOURS. THE FIRE STARTED IN THE ENGINE COMPARTMENT. THE FIRE OCCURRED AT ABOUT 2:00PM. SATRUDAY AFTERNOON. TEMP ABOUT 82 DEGREES. SOMETHING IN THE CARS ENGINE ROOM ON THE LEF…
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WHILE SITTING IN FRONT OF MY HOME MY 1999 CADILLAC DEVILLE CAUGHT ON FIRE AND BURNT TO A TOTAL LOSS. THE CAR WAS PARKED, HAD NOT BEEN DRIVEN FOR ABOUT 48 HOURS. THE FIRE STARTED IN THE ENGINE COMPARTMENT. THE FIRE OCCURRED AT ABOUT 2:00PM. SATRUDAY AFTERNOON. TEMP ABOUT 82 DEGREES. SOMETHING IN THE CARS ENGINE ROOM ON THE LEFT SIDE IGNITED. IT APPEARS TO HAVE BEEN AN ELECTRICAL PROBLEM THAT SELF IGNITED. JUST PRIOR TO THE FIRE, MY WIFE WHO WAS AT HOME AT THE TIME HEARD THE CAR ALARM GO OFF. SHE WENT TO THE WINDOW AND IT QUIT SOUNDING. SHE DID NOT SEE ANY FIRE AT THAT TIME. ABOUT 5 MINUTES LATER A NEIGHBOR POUNDED ON THE DOOR AND ALERTED HER TO THE FACT THAT THE CAR WAS BURNING. THE FIRE WAS SO INTENSE THAT BEFORE THE FIRE DEPARTMENT GOT TO THE SEEN, ONE OF THE HOOD GAS STRUTS BLEW THROUGH THE FRONT GRILL AND LANDED ABOUT 20 FEET IN FRONT OF THE VEHICLE. THE FIRE DEPARTMENT CAME AND PUT OUT THE FIRE. SOMETHING OBVIOUSLY WITHIN THIS CARS ENGINE COMPARTMENT ELECTRICAL/COMPUTER SYSTEM STARTED THE FIRE. THE CAR IS A TOTAL LOSS. CADILLACS SHOULD NOT BURN AND SHOULD NOT SPONTANEOUSLY IGNITE. THE CAR HAD ABOUT 75,000 MILES. I OWN 11 OTHER CARS AND HAVE A SMALL CAR COLLECTION. I AM A CAR GUY AND THIS CAR LIKE ALL MY CARS (INCLUDING 2 FERRARI'S) HAS BEEN WELL MAINTAINED AND WHEN I LAST DROVE ON THURSDAY EVENING AUGUST 28, IT RAN FINE AND DID NOT GIVE ME ANY INDICATION OF ANY ELECTRICAL ISSUES. THE POLICE DETERMINED THAT IT WAS NOT VANDALIZED OR CAUSED BY ANY OUTSIDERS. *TR
NHTSA ODI #10240550
74,000 miles · Jun 10, 2008
Engine And Engine Cooling
TL*THE CONTACT OWNS A 1999 CADILLAC DEVILLE. THE CONTACT STATED THAT THE VEHICLE WOULD OVERHEAT. HE TOOK THE VEHICLE TO THE DEALER AND THEY REPLACED THE WATER PUMP. THE FAILURE RECURRED AND THE CONTACT WAS INFORMED THAT MOST OF THOSE MODEL VEHICLES WERE DESIGNED TO OPERATE IN THAT MANNER, AND IT WAS SAFE TO DRIVE. A FEW DAYS…
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TL*THE CONTACT OWNS A 1999 CADILLAC DEVILLE. THE CONTACT STATED THAT THE VEHICLE WOULD OVERHEAT. HE TOOK THE VEHICLE TO THE DEALER AND THEY REPLACED THE WATER PUMP. THE FAILURE RECURRED AND THE CONTACT WAS INFORMED THAT MOST OF THOSE MODEL VEHICLES WERE DESIGNED TO OPERATE IN THAT MANNER, AND IT WAS SAFE TO DRIVE. A FEW DAYS AFTER THE WATER PUMP WAS REPLACED, WHILE DRIVING 70 MPH, THE VEHICLE BEGAN TO EXCESSIVELY OVERHEAT. THE CONTACT SHUT OFF THE ENGINE AND HAD THE VEHICLE TOWED TO A MECHANIC. HE WAS INFORMED THAT THE CAUSE OF THE FAILURE WAS NOT THE WATER PUMP, BUT RATHER A BLOWN OUT HEAD GASKET. THE VEHICLE CANNOT BE REPAIRED WITHOUT A NEW ENGINE. THROUGH ONLINE RESEARCH, HE DISCOVERED THAT HIS MODEL VEHICLE HAS NUMEROUS ISSUES DUE TO OVERHEATING AND HEAD GASKETS. THE VEHICLE HAS NOT YET BEEN REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 74,000. UPDATED 07/08/08. *BF UPDATED 07/08/08
NHTSA ODI #10230413
78,800 miles · Oct 26, 2007
Engine And Engine Cooling
TL*THE CONTACT OWNS A 1999 CADILLAC DEVILLE. WHILE DRIVING 65 MPH, THE ENGINE WARNING LIGHT ILLUMINATED, WHICH INDICATED THAT THE ENGINE OVERHEATED. THE DEALER STATED THAT THE WATER PUMP CAUSED THE FAILURE. THE DEALER REPAIRED THE WATER PUMP; HOWEVER, THE FAILURE CONTINUED TO OCCUR. THE CONTACT FELT THAT THE ENGINE WAS DEFEC…
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TL*THE CONTACT OWNS A 1999 CADILLAC DEVILLE. WHILE DRIVING 65 MPH, THE ENGINE WARNING LIGHT ILLUMINATED, WHICH INDICATED THAT THE ENGINE OVERHEATED. THE DEALER STATED THAT THE WATER PUMP CAUSED THE FAILURE. THE DEALER REPAIRED THE WATER PUMP; HOWEVER, THE FAILURE CONTINUED TO OCCUR. THE CONTACT FELT THAT THE ENGINE WAS DEFECTIVE. AS OF OCTOBER 26, 2007, THE DEALER HAD NOT REPAIRED THE VEHICLE. THE FAILURE MILEAGE WAS 78,800 AND CURRENT MILEAGE WAS 79,000. UPDATED 01/02/08 *BF THE CONSUMER STATED THE ENGINE HEATS UP DUE TO THE HEAD BOLTS LOOSENING AND THE ENGINE COOLANT EVAPORATES INTO THE CYLINDER HEADS. UPDATED *JB
NHTSA ODI #10206971
Mileage unknown · Jul 13, 2006
Engine And Engine Cooling
DT*: THE CONTACT STATED THAT WHEN THE BRAKES WERE APPLIED THE VEHICLE STALLED. A MANUFACTURER TSB #150201 WAS OBSERVED ONLINE, SIMILAR TO THE VEHICLE'S SYMPTOMS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANICS TO BE SERVICED. THE MECHANICS COULD NOT DETERMINE THE PROBLEM. THE VEHICLE WAS NEVER REPAIRED AND SOLD TO AN INDEP…
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DT*: THE CONTACT STATED THAT WHEN THE BRAKES WERE APPLIED THE VEHICLE STALLED. A MANUFACTURER TSB #150201 WAS OBSERVED ONLINE, SIMILAR TO THE VEHICLE'S SYMPTOMS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANICS TO BE SERVICED. THE MECHANICS COULD NOT DETERMINE THE PROBLEM. THE VEHICLE WAS NEVER REPAIRED AND SOLD TO AN INDEPENDENT DEALERS AS IS. UPDATED 8/16/06 - *NM
NHTSA ODI #10162312
84,000 miles · Apr 26, 2006
Engine And Engine Cooling
MYSTERIOUS COOLANT LEAK, HAVE HAD A PRESSURE TEST ON SYSTEM, PASSED, HEAD TEST, PASSED, AND HAVE PUT IN OVER 9 GALLONS OF ANTIFREEZE IN CAR, STILL NO IDEA WHERE LEAK IS. TALKED WITH CADILLAC SERVICE AT BOB MORE CADILLAC, AND WAS TOLD THAT IT IS A VERY COMMON PROBLEM WITH THE NORTHSTAR ENGINES. THEY USE A ALMOND PILL TO CRUSH UP …
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MYSTERIOUS COOLANT LEAK, HAVE HAD A PRESSURE TEST ON SYSTEM, PASSED, HEAD TEST, PASSED, AND HAVE PUT IN OVER 9 GALLONS OF ANTIFREEZE IN CAR, STILL NO IDEA WHERE LEAK IS. TALKED WITH CADILLAC SERVICE AT BOB MORE CADILLAC, AND WAS TOLD THAT IT IS A VERY COMMON PROBLEM WITH THE NORTHSTAR ENGINES. THEY USE A ALMOND PILL TO CRUSH UP AND PUT IN ALL CADILLAC COOLING SYSTEMS. THIS IS REQUIRED BY GM TO PLUG LEAKS THAT THEY KNOW WILL HAPPEN AND IS A GM PART FIX, SOLD BY THEM. *NM
NHTSA ODI #10156173
99,000 miles · Feb 8, 2006
Engine And Engine Cooling
MY 1999 CADILLAC DEVILLE HAS STALLED OUT 3 TIMES IN THE LAST 6 MONTHS. ALL 3 OF THE ENGINE STALLS HAVE OCCURRED ON THE HIGHWAY AS I HAVE REDUCED SPEED IN PREPARATION TO ENTER A LOWER SPEED LIMIT ZONE OR IN PREPARATION TO STOP AT AN INTERSECTION. THE LOSS OF POWER DURING THESE STALLS MAKES BREAKING AND TURNING EXTREMELY DIFFICU…
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MY 1999 CADILLAC DEVILLE HAS STALLED OUT 3 TIMES IN THE LAST 6 MONTHS. ALL 3 OF THE ENGINE STALLS HAVE OCCURRED ON THE HIGHWAY AS I HAVE REDUCED SPEED IN PREPARATION TO ENTER A LOWER SPEED LIMIT ZONE OR IN PREPARATION TO STOP AT AN INTERSECTION. THE LOSS OF POWER DURING THESE STALLS MAKES BREAKING AND TURNING EXTREMELY DIFFICULT. IN ADDITION, I'M FORCED TO COME TO A STOP IN THE MIDDLE OF THE ROAD IN ORDER TO RESTART THE ENGINE. THIS IS A VERY DANGEROUS SITUATION. *JB
NHTSA ODI #10149696
143,453 miles · Sep 29, 2005
Engine And Engine Cooling
CONSUMER'S ENGINE OVER HEATS AND CONSUMES OIL EXCESSIVELY. *TS *** NAR RECEIVED 9-29-05*** THE TECHNICIAN DIAGNOSED THE PROBLEM AS POSSIBLE HEAD GASKET OR HEAD BOLT FAILURE. *NM
NHTSA ODI #10138867
32,000 miles · Aug 4, 2005
Engine And Engine Cooling
DT: THE VEHICLE WILL SHUT DOWN AFTER THE OIL LIGHT COMES ON. THE CONSUMER WAS DRIVING AROUND 55 MPH. THIS HAPPENED TWICE WHILE HE WAS SLOWING DOWN. THE CONSUMER WAS ABLE TO GET THE VEHICLE TO START BACK. THIS OCCURRED THREE TIMES TODAY 8-4-05. THE OIL WAS NOT LOW AT THE FIVE TIMES THIS HAS OCCURRED. THE FIRST TWO TIMES IT …
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DT: THE VEHICLE WILL SHUT DOWN AFTER THE OIL LIGHT COMES ON. THE CONSUMER WAS DRIVING AROUND 55 MPH. THIS HAPPENED TWICE WHILE HE WAS SLOWING DOWN. THE CONSUMER WAS ABLE TO GET THE VEHICLE TO START BACK. THIS OCCURRED THREE TIMES TODAY 8-4-05. THE OIL WAS NOT LOW AT THE FIVE TIMES THIS HAS OCCURRED. THE FIRST TWO TIMES IT OCCURRED CONSUMER DID NOT TAKE IT TO THE DEALERSHIP. THE CONSUMER HAS CURRENTLY MADE AN APPOINTMENT TO TAKE IT TO THE DEALERSHIP. THE CONSUMER WAS CONCERNED BECAUSE HE HAD A CADILLAC BEFORE THAT HAD THIS SAME PROBLEM. THERE ARE NO OTHER KNOWN PROBLEMS WITH THE VEHICLE AT THIS TIME. *AK
NHTSA ODI #10131583