Problems · by component

1996 Mercury Grand Marquis engine and engine cooling problems

95 owner complaints to NHTSA about the 1996 Mercury Grand Marquis cite engine and engine cooling, 35% of all 275 complaints for this model year.

Complaints
95
35% of all complaints
Crashes
0
Reported by owners
Fires
9
Reported by owners
Injuries
8
Reported by owners
01 —Owner reports

What owners say about the engine and engine cooling

Verbatim from NHTSA complaints, newest first
“A CRACK IN MY EXHAUST MANIFOLD BEHIND THE ALTERNATOR CAUSING COOLANT TO SPRAY ALL OVER UNDER MY HOOD AND NOW MY ENGINE OVERHEATS..THANKS FOR USING PLASTIC PARTS FORD . *TR”
Owner complaint to NHTSAFiled May 10, 2012Engine and engine coolingODI 10458067
“WHILE DRIVING MY VEHICLE HOME FROM WORK IN THE EVENING, THE CAR STARTED TO PUTTER, THEN SMOKE CAME POURING OUT FROM UNDER THE ENGINE HOOD BLOCKING MY VIEW FROM THE ROAD CAUSING CARS TO RACE AROUND ME AND ALMOST HAD AN ACCIDENT...ALSO STARTED COMING IN THE VENTS OF THE CAR, MAKING ME NAUSEA. EXTREME DANGER AND FEAR. I HAD TO HAVE THE CAR TOWED $65.00 AND THE REPAIR ESTIMATE CAME IN AT $900.00. CRACKED PLASTIC INTAKE MANIFOLD. ??PLASTIC?? WHO DOES THAT? I HAVE BEEN UNEMPLOYED AND ONLY ABLE TO GET PART TIME EMPLOYMENT. I CAN'T AFFORD THIS REPAIR SO I HAD TO HAVE THE CAR TOWED BACK TO MY HOUSE...ANOTHER $65.00. THE CAR ONLY HAS 85,218 MILES ON IT AND HAS BEEN KEPT IMMACULATE. I CONTACTED MERCURY/FORD AND THEY SAID THERE IS NOTHING THEY CAN DO. IN RESEARCHING, I SPENT HOURS READING HUNDREDS AND HUNDREDS OF POSTINGS REGARDING THE SAME SITUATION...AND ALSO, THE SAME CAR, FORD CROWN VICTORIA HAS THE EXACT SAME PROBLEM. I UNDERSTAND THERE WAS A "SILENT RECALL" WHERE ONLY GOVERNMENT FLEET/POLICE CARS WERE TAKEN CARE OF. HOW NICE! THE REPLACEMENT WAS WITH A METAL PART, WHICH IT SHOULD HAVE BEEN FROM THE BEGINNING. THIS IS AN EXTREME NEGLECT ON FORD/MERCURY PART. I BELIEVE…”
Owner complaint to NHTSAFiled Dec 1, 2010Engine and engine coolingODI 10368518
“TL*THE CONTACT OWNS A 1996 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT THERE WAS STEAM EMITTING FROM THE ENGINE COMPARTMENT. A MECHANIC ADVISED THE CONTACT THAT THERE WAS A CRACK IN THE PLASTIC INTAKE MANIFOLD. THE VEHICLE HAD NOT BEEN REPAIRED AT THE TIME OF THE COMPLAINT. THE CONTACT CALLED THE MANUFACTURER WHO OFFERED NO ASSISTANCE. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 85,000.”
Owner complaint to NHTSAFiled Aug 11, 2010Engine and engine coolingFire reportedODI 10348684
“TL* THE CONTACT OWNS A 1996 MERCURY GRAND MARQUIS. WHILE PARKED IN THE RESIDENCE CARPORT, THE VEHICLE CAUGHT ON FIRE. THE FIRE DEPARTMENT EXTINGUISHED THE FLAMES. THE MASSIVE FIRE COMPLETELY DESTROYED THE VEHICLE AND CAUSED DAMAGES TO THE HOME. THERE WERE NO PERSONAL INJURIES. AT THIS TIME THE CAUSE OF FAILURE HAS NOT BEEN DETERMINED. THE MANUFACTURER AND INSURANCE COMPANY WERE NOTIFIED. THE FAILURE AND CURRENT MILEAGES WERE 96,000.”
Owner complaint to NHTSAFiled Oct 23, 2009Engine and engine coolingFire reportedODI 10289452
“PLASTIC INTAKE MANIFOLD ON A 1996 FORD GRAND MARQUIS 4.6 LITER V-8. APPARENTLY THERE WAS SOME SETTLEMENT OFFER FROM FORD TO REPLACE THIS PART WITH AN ALUMINUM INTAKE HOWEVER DUE TO THE CAR NOT BEING DRIVEN MUCH, 70,000 MILES IN 12 YEARS THE INTAKE MANIFOLD DID NOT FAIL UNTIL RECENTLY. I WOULD LIKE TO KNOW WHAT OPTIONS I HAVE IN FIXING THIS PART AND POSSIBLE REIMBURSEMENT OF THE $800 OR MORE IT WILL COST ME TO FIX IT. *TR”
Owner complaint to NHTSAFiled Dec 15, 2008Engine and engine coolingODI 10251873
“HAD JUST TURNED OFF FREEWAY WHEN WARNING CHIME FOR OVERHEATED ENGINE SOUNDED. STOPPED CAR WITHIN ONE BLOCK & TURNED OFF MOTOR. TOWED TO MECHANIC. TURNS OUT TO BE THE INTAKE MANIFOLD CATASTROPHIC FAILURE, COMMON TO FORDS (MINE IS 1996 MERCURY GRAND MARQUIS, 71K MILES.) AM NOW RUNNING COMPRESSION TEST TO SEE IF ANY ENGINE DAMAGE, IF THERE IS NO DAMAGE THEN I WILL HAVE TO FIX MANIFOLD AT A COST OF APPROX. $1036. IF THERE IS ENGINE DAMAGE THEN I WILL HAVE TO JUNK A PERFECTLY FINE CAR IN EXCELLENT CONDITION (APART FROM THIS). FORD DOES NOT OFFER ANY REDRESS. I NEVER RECEIVED ANY INFORMATION ABOUT THIS PROBLEM, NOR ABOUT THE CLASS ACTION LAWSUIT SETTLEMENT. THIS COULD HAVE BEEN EXTREMELY DANGEROUS, AS I HAD JUST EXCITED A FREEWAY WHEN THE WARNING BEEP SOUNDED. I HAVE RECEIVED ALL OTHER RECALL INFO ON THIS VEHICLE AND HAVE COMPLIED W. RECALL. IN FACT VEHICLE HAD BEEN FULLY CHECKED BY DEALER ONLY 6 DAYS WHEN TAKEN IN FOR THE SECOND PART OF THE SWITCH RECALL ON THIS MODEL. DEALER NEVER INFORMED ME OF ANY POTENTIAL MANIFOLD PROBLEM. THIS IS A SAFETY ISSUE AS WELL AS A DEFECTIVE PART ISSUE. AT THE VERY LEAST, OWNERS SHOULD BE NOTIFIED THAT THIS IS A COMMON CATASTROPHIC FAILURE. *TR”
Owner complaint to NHTSAFiled May 19, 2008Engine and engine coolingODI 10228207

Showing 6 of 95 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Other 1996 Grand Marquis problem areas