1997 Mercury Grand Marquis Engine And Engine Cooling:cooling System Problems

NHTSA component category: ENGINE AND ENGINE COOLING:COOLING SYSTEM · data through 07/14/2026

21Engine And Engine Cooling:cooling System complaints

6.6%Of all 316 complaints

#3Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How engine and engine cooling:cooling system ranks on this vehicle

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE55 · 17.4%

FUEL SYSTEM, GASOLINE:CARBURETOR SYSTEM28 · 8.9%

ENGINE AND ENGINE COOLING:COOLING SYSTEM21 · 6.6%

ENGINE AND ENGINE COOLING21 · 6.6%

ENGINE AND ENGINE COOLING:ENGINE21 · 6.6%

Share of the 316 complaints citing each category; one complaint can cite several. Full breakdown on the 1997 Mercury Grand Marquis overview page.

What owners report

“FAILURE OF INTAKE MANIFOLD WAS SUDDEN/CATESTROPHIC AND HAPPENED AT HIGHWAY SPEED. ENGINE COOLANT CAUSED A CLOUD OF STEAM SO THICK, FORWARD VISION WAS COMPLETELY BLOCKED…”NHTSA complaint 770256 — filed 11/29/2002

“THE INTAKE MANIFOLD IS MADE OF A PLASTIC MATERIAL. IT DEVELOPED A CRACK AND A MAJOR COOLANT LEAK AT THE FRONT OF THE MANIFOLD. THE…”NHTSA complaint 769176 — filed 11/01/2002

“CONSUMER NOTICE COOLANT SMELL INSIDE VEHICLE WHILE TRAVELING SOON AFTER NOTICE TEMPERATURE GAUGE RISING WITH INDICATION LIGHT FLASHING. CONSUMER PULL VEHICLE OVER LOOK UNDER HOOD…”NHTSA complaint 8020553 — filed 10/09/2002

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Engine And Engine Cooling:cooling System complaints by year filed

Frequently asked questions

Does the 1997 Mercury Grand Marquis have engine and engine cooling:cooling system problems?

Engine And Engine Cooling:cooling System is the #3 most-reported problem area on the 1997 Mercury Grand Marquis: 21 of 316 complaints on file (6.6%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 1997 Mercury Grand Marquis have in total?

316 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 11 involved a crash, 6 involved a fire, 11 reported injuries, and none reported deaths.

What does NHTSA's engine and engine cooling:cooling system category include?

NHTSA assigns each complaint to standard component categories; this page reports the ENGINE AND ENGINE COOLING:COOLING SYSTEM category exactly as NHTSA defines and records it.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.