1996 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 07/12/2026

35Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe complaints

14.6%Of all 239 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 PIPE35 · 14.6%

FUEL SYSTEM, GASOLINE:CARBURETOR SYSTEM16 · 6.7%

ENGINE AND ENGINE COOLING:ENGINE16 · 6.7%

ENGINE AND ENGINE COOLING14 · 5.9%

VEHICLE SPEED CONTROL13 · 5.4%

Share of the 239 complaints citing each category; one complaint can cite several. Full breakdown on the 1996 Mercury Grand Marquis overview page.

What owners report

“WHILE DRIVING CONSUMER NOTICED HEAD GASKET WAS LEAKING COOLANT. THE INTAKE MANIFOLD WAS REPLACED AT CONSUMER'S EXPENSE.”NHTSA complaint 10063148 — filed 04/20/2004

“INTAKE MANIFOLD MADE OF PLASTIC AND IT CRACKS. REPLACEMENT HAS METAL WHERE PLASTIC WAS USED, OBVIOUS A DESIGN DEFECT.”NHTSA complaint 10066501 — filed 04/19/2004

“CONSUMER TOOK THE VEHICLE TO DEALERSHIP FOR INSPECTION, AND MECHANIC DETERMINED THAT PLASTIC INTAKE MANIFOLD CRACKED, CAUSING FLUID TO LEAK ONTO THE ENGINE. THIS LED…”NHTSA complaint 10059855 — filed 02/26/2004

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 1996 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 1996 Mercury Grand Marquis: 35 of 239 complaints on file (14.6%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 1996 Mercury Grand Marquis have in total?

239 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 9 involved a crash, 19 involved a fire, 16 reported injuries, and 2 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 07/12/2026.