Problems · by component

1997 Mercury Grand Marquis engine and engine cooling problems

146 owner complaints to NHTSA about the 1997 Mercury Grand Marquis cite engine and engine cooling, 39% of all 372 complaints for this model year.

Complaints
146
39% of all complaints
Crashes
2
Reported by owners
Fires
3
Reported by owners
Injuries
4
Reported by owners
01 —Owner reports

What owners say about the engine and engine cooling

Verbatim from NHTSA complaints, newest first
“TL*THE CONTACT OWNS A 1997 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 50 MPH, THE VEHICLE SUDDENLY OVERHEATED. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO REPLACED THE INTAKE MANIFOLD. THE MANUFACTURER WAS NOT NOTIFIED. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 114,000.”
Owner complaint to NHTSAFiled Mar 15, 2011Engine and engine coolingODI 10390203
“TL*THE CONTACT OWNS A 1997 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE DRIVING 65 MPH, THE SERVICE CHECK ENGINE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THEY DIAGNOSED IT STATING THAT THE INTAKE MANIFOLD FAILED DUE TO THE STRUCTURE. THE MANIFOLD WAS REPLACED AT THE OWNERS EXPENSE. THE FAILURE MILEAGE WAS 47025 AND THE CURRENT MILEAGE WAS 47050. UPDATED 11/24/10”
Owner complaint to NHTSAFiled Aug 13, 2010Engine and engine coolingODI 10349227
“TL* THE CONTACT OWNS A 1997 MERCURY GRAND MARQUIS. WHILE DRIVING AT SPEEDS OF 10 MPH, THE CONTACT OBSERVED SMOKE COMING FROM UNDER THE HOOD AND WITHIN SECONDS, THE INTERIOR CABIN WAS FILLED WITH SMOKE AND FLAMES. THE VEHICLE OCCUPANTS WERE ABLE TO SAFELY EXIT THE VEHICLE. AND THE FIRE AND POLICE DEPARTMENT WERE CONTACTED. THERE WERE REPORTS FILED BY BOTH ENTITIES. THE VEHICLE WAS DESTROYED. THE DEALER ADVISED THERE WERE NO RECALLS FOR THE VEHICLE AND THE MANUFACTURER WOULD NOT PROVIDE ANY ASSISTANCE. THE FAILURE AND CURRENT MILEAGES WERE 37,000.”
Owner complaint to NHTSAFiled May 20, 2010Engine and engine coolingFire reportedODI 10331472
“TL*THE CONTACT OWNS A 1997 MERCURY GRAND MARQUIS. WHILE DRIVING AT ANY SPEED, THE VEHICLE WILL SUDDENLY SHUT OFF. THE CONTACT IS ABLE TO SHIFT INTO NEUTRAL AND RESTART THE VEHICLE. THE VEHICLE HAS NOT BEEN DIAGNOSED BY THE DEALER. THE CURRENT AND FAILURE MILEAGES WERE 67,000.”
Owner complaint to NHTSAFiled Jul 24, 2009Engine and engine coolingODI 10278230
“I WAS DRIVING MY FATHER'S 1997 MERCURY GRAND MARQUIS LS AT 35 MPH. I NOTICED A CAR PULL UP BESIDE ME WITH THE DRIVER WAIVING FRANTICALLY. I ROLLED DOWN MY WINDOW AND HE TOLD ME MY CAR WAS "POURING WATER". I LOOKED AT THE TEMPERATURE GAUGE AND IT HAD RISEN. MANAGED TO MAKE IT THE FIVE OR SO BLOCKS TO THE HOUSE AND RAISED THE HOOD. STEAM CAME OUT. FILLED WITH WATER AND TOOK TO A LOCAL SHOP ON MONDAY MORNING TO FIND OUT THE CAR HAD A CRACKED INTAKE MANIFOLD. REPAIR BILL FOR INTAKE WAS $800 WITH MORE TO COME AS NOW IT HAS NOISY LIFTERS. THERE WAS A RECALL AND CLASS ACTION SUIT AS MY 1997 COUGAR HAD 3 INTAKES REPLACED, ONE THE MANUFACTURER REIMBURSED UNDER RECALL. THEY WOULD NOT PAY FOR THE OTHER TWO BUT THEY SENT ME THE SAME FAULTY PART ON THE SECOND GO ROUND. ON MY CAR AND THIS GRAND MARQUIS, MILEAGE WAS RIGHT AT 80,000 ON FIRST OCCURRENCE. MY PARENTS NEVER RECEIVED A RECALL LETTER ON THIS CAR BUT DID RECEIVE NOTICE OF THE CLASS ACTION SUIT. THE KEPT THE NOTICE OF THE SUIT IN THEIR FILE BUT DID NOT RESPOND AS THEY NEVER RECEIVED A RECALL LETTER AND THOUGHT THEIR VEHICLE WAS NOT INCLUDED. THE MANUFACTURER STATES THEY "CANNOT HELP". THE RECALL WAS FOR SEVEN YEARS,…”
Owner complaint to NHTSAFiled May 6, 2008Engine and engine coolingODI 10226872
“THE 1997 MERCURY GRAND MARQUIS HAD STARTED RUNNING A LITTLE ROUGH, AND BEING ON A VERY FIXED INCOME I HOPED AND PRAYED NOTHING WAS TOO BADLY WRONG WITH IT. THE MANIFOLD FAILED ON THE WAY TO THE REPAIR SHOP AND I LOST ALL THE COOLANT FROM THE CRACKED PLASTIC MANIFOLD. I HAD TO REPLACE THE DEFECTIVE MANIFOLD,DUE TO THE 3 INCH CRACK IN IT AND ALL THE RELATED GASKETS AND PERIPHERAL EQUIPMENT. I STILL HAVE THE MANIFOLD AND THE OUTRAGEOUS BILL THAT WENT WITH IT!!!!!!! *TR”
Owner complaint to NHTSAFiled Apr 27, 2008Engine and engine coolingODI 10225813

Showing 6 of 146 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.