Problems · by component
1996 Cadillac Deville engine and engine cooling problems
40 owner complaints to NHTSA about the 1996 Cadillac Deville cite engine and engine cooling, 18% of all 225 complaints for this model year.
Complaints
40
18% of all complaints
Crashes
0
Reported by owners
Fires
3
Reported by owners
Injuries
1
Reported by owners
What owners say about the engine and engine cooling
Verbatim from NHTSA complaints, newest first
“MY FATHER PURCHASED A 1996 SEDAN DEVILLE BRAND NEW. HE PASSED AWAY IN APRIL 1998. MY MOTHER DROVE THE CAR UNTIL THIS YEAR. SHE GAVE ME THE CAR. THE CAR HAS APPROX 17,000 MILES. I JUST FOUND OUT THE CAR HAS A BLOWN REAR HEAD GASKET. I REALIZE THE CAR IS 15 YRS OLD BUT I FEEL THIS SHOULD NOT HAVE HAPPENED WITH SUCH LOW MILEAGE. THE CAR WAS NEVER ABUSED AND STILL SMELLS NEW INSIDE. DO I HAVE ANY RECOURSE WITH GM? *TR”
“FRONT WHEELS PASSED THROUGH A PUDDLE AND WATER SPLASHED INTO ENGINE COMPARTMENT WHILE I ATTEMPTED TO MAKE A TURN. THERE WAS A COMPLETE LOSS OF POWER STEERING AND THE TURN COULD NOT BE COMPLETED. THE EFFECT WAS MOMENTARY BUT SCARED ME QUITE A BIT. THIS HAS HAPPENED THREE TIMES ON DIFFERENT RAINY DAYS WITH THE CAR. *TR”
“ANY TIME THE VEHICLE IS DRIVEN MORE THAN 2 HOURS, THE VEHICLE OVERHEATS, AND CAUSES THE "CHECK ENGINE LIGHT TO COME ON. THE VEHICLE HAS BEEN BROUGHT TO THE DEALER NUMEROUS TIMES, AND HE IS UNABLE TO REPAIR TO OUR SATISFACTION. THIS HAS OCCURRED MANY, MANY TIMES WITHOUT RESOLUTION. *TR”
“CAR LOSES POWER COMPLETELY AND CUTS OFF. THERE IS NO ELECTRIC OR ENGINE AVAILABLE AND THE CAR MUST BE RESTARTED IN ORDER TO PROCEED IN TRAFFIC. THIS FAILURE USUALLY OCCURS AT LOW RATES (20-35MPH) OF SPEED BUT ESPECIALLY WHEN TURNING CORNERS. POWER STEERING IS DIMINISHED DUE TO POWER FAILURE. *TR”
“VERY DANGEROUS SITUATION OCCURRED WHILE DRIVING ON CITY ROADS WHERE POSTED SPEEDS ARE 35-45 MPH. THE CAR JUST STARTED TO SPEED UP ON ITS OWN AND I COULD NOT GET THE ENGINE TO SLOW DOWN. THE ONLY WAY I COULD AVOID A TRAFFIC ACCIDENT WAS TO RIDE THE BRAKES CONTINUOUSLY. BY THE TIME I GOT HOME THE BRAKES WERE SMOKING AND EXTREMELY OVERHEATED. I ALMOST COULD NOT STOP WITH THE ENGINE RACING AND THE BRAKES WORN OUT. I HAD TO SHUT THE ENGINE DOWN WHILE STILL IN DRIVE, ALMOST RUNNING INTO THE WALL OF MY HOUSE. I AM 70 YEARS OLD AND WAS VERY SCARED. ON EDMUNDS .COM THERE ARE THREE OTHER REPORTED INSTANCES OF THE SAME THING HAPPENING WITH THE SAME MAKE AND MODEL. MY CAR IS UNDRIVEABLE AND I WILL HAVE TO GET IT TOWED FROM MY HOUSE TO THE DEALER FOR IT TO BE CHECKED OUT, PLEASE FOLLOW UP ON THIS AS IT IS A VERY DANGEROUS CONDITION. I WAS VERY CLOSE TO HAVING AN ACCIDENT. *JB”
“BOUGHT VEHICLE USED FROM AUTO DEALERSHIP. FROM DAY ONE SMELLED OIL FROM UNDER HOOD, SMELLED ENGINE COOLANT LEAK. HAVING TO CONSTANTLY REFILL COOLANT LEVEL. AND COOLANT MIXED ON WITH ENGINE OIL. DEALER "COULD NOT FIND PROBLEM AFTER THREE ATTEMPTS. LATER, 3 OTHER REPAIR SHOPS ALL DIAGNOSED BLOWN HEAD GASKET. ESTIMATED COST OF REPAIRS RANGED FROM $2800.00 TO $5200.00. *JB”
Showing 6 of 40 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.