1997 Mercury Grand Marquis Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe Problems

NHTSA component category: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE · data through 07/14/2026

55Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe complaints

17.4%Of all 316 complaints

#1Most-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:exhaust system:manifold/header/muffler/tail pipe 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

“THE PLASTIC INTAKE MANIFOLD CRACKED, WHICH CAUSED COOLANT TO LEAK ONTO THE ENGINE.”NHTSA complaint 10009143 — filed 02/24/2003

“WHILE DRIVING THE VEHICLE AT 25-30MPH THE INTAKE MANIFOLD BROKE. DEALER HAS BEEN NOTIFIED. PLEASE PROVIDE FURTHER INFORMATION. PH”NHTSA complaint 8024044 — filed 12/09/2002

“WHILE DRIVING THE VEHICLE AT 40PMH THE ENGINE INTAKE MANIFOLD DEVELOPED A CRACKED AND LOSE ALL ANTIFREEZE. DEALER HAS BEEN NOTIFIED. PLEASE PROVIDE FURTHER INFORMATION…”NHTSA complaint 8023151 — filed 11/21/2002

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

Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe complaints by year filed

Frequently asked questions

Does the 1997 Mercury Grand Marquis have engine and engine cooling:exhaust system:manifold/header/muffler/tail pipe problems?

Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe is the most-reported problem area on the 1997 Mercury Grand Marquis: 55 of 316 complaints on file (17.4%). 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:exhaust system:manifold/header/muffler/tail pipe category include?

NHTSA assigns each complaint to standard component categories; this page reports the ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE 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.