Complaints
25
Crashes
1
Fires
3
Injuries
0
Fatalities
—
Recalls
0
Worst 1984 Mercury Cougar Problems
Top 3 most-reported issues with average mileage at failure.
#16 complaints
ELECTRICAL SYSTEM:IGNITION:SWITCH
Fires:3
#23 complaints
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
#32 complaints
ELECTRICAL SYSTEM:IGNITION:MODULE
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All Problems by Category
Every NHTSA complaint category for the 1984 Mercury Cougar.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| ELECTRICAL SYSTEM:IGNITION:SWITCH | 6 | — | 3 | — | |
| ENGINE AND ENGINE COOLING:ENGINE:GASOLINE | 3 | — | — | — | |
| ELECTRICAL SYSTEM:IGNITION:MODULE | 2 | — | — | — | |
| SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC | 2 | — | — | — | |
| ELECTRICAL SYSTEM:12V/24V/48V BATTERY | 1 | — | — | — | |
| ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL | 1 | — | — | — | |
| FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM | 1 | — | — | — | |
| SEAT BELTS:FRONT:BUCKLE ASSEMBLY | 1 | — | — | — | |
| SEAT BELTS:FRONT:RETRACTOR | 1 | — | — | — | |
| SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP | 1 | — | — | — | |
| SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING: LAMP | 1 | — | — | — | |
| STEERING:LINKAGES:ARM:IDLER AND ATTACHMENT | 1 | — | — | — | |
| STEERING:RACK AND PINION | 1 | — | — | — | |
| UNKNOWN OR OTHER | 1 | — | — | — | |
| VEHICLE SPEED CONTROL | 1 | 1 | — | 41,000 mi | |
| VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:WINDSHIELD:ELECTRICAL HEATING ELEMENT | 1 | — | — | — |
ELECTRICAL SYSTEM:IGNITION:SWITCH
6
complaints
Crashes
—
Fires
3
Avg Miles
—
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
3
complaints
Crashes
—
Fires
—
Avg Miles
—
ELECTRICAL SYSTEM:IGNITION:MODULE
2
complaints
Crashes
—
Fires
—
Avg Miles
—
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC
2
complaints
Crashes
—
Fires
—
Avg Miles
—
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
1
complaints
Crashes
—
Fires
—
Avg Miles
—
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
1
complaints
Crashes
—
Fires
—
Avg Miles
—
FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
1
complaints
Crashes
—
Fires
—
Avg Miles
—
SEAT BELTS:FRONT:BUCKLE ASSEMBLY
1
complaints
Crashes
—
Fires
—
Avg Miles
—
SEAT BELTS:FRONT:RETRACTOR
1
complaints
Crashes
—
Fires
—
Avg Miles
—
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
1
complaints
Crashes
—
Fires
—
Avg Miles
—
SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING: LAMP
1
complaints
Crashes
—
Fires
—
Avg Miles
—
STEERING:LINKAGES:ARM:IDLER AND ATTACHMENT
1
complaints
Crashes
—
Fires
—
Avg Miles
—
STEERING:RACK AND PINION
1
complaints
Crashes
—
Fires
—
Avg Miles
—
UNKNOWN OR OTHER
1
complaints
Crashes
—
Fires
—
Avg Miles
—
VEHICLE SPEED CONTROL
1
complaints
Crashes
1
Fires
—
Avg Miles
41,000
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:WINDSHIELD:ELECTRICAL HEATING ELEMENT
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Search Owner Complaints
Read what owners actually reported to NHTSA for the 1984 Mercury Cougar. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Other Mercury Cougar Years
Wider context: See the full Mercury Cougar reliability report with year-by-year comparison and generation analysis.
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