1991 Mercury Topaz Service and Repair Manual
The 1991 Mercury Topaz Service and Repair Manual is a practical, workshop-ready reference for maintenance, diagnostics, and repairs. Use it to troubleshoot symptoms, follow step-by-step procedures, verify specifications, and confirm wiring and connector locations before replacing parts.
Ideal for technicians and DIY owners, it supports everything from routine service to deeper mechanical and electrical work—including drivability, no-start, warning lights, overheating, brake and suspension issues, HVAC faults, and circuit testing.
Trims covered
- GS AWD Sedan 2-Door
- GS AWD Sedan 4-Door
- GS Sedan 2-Door
- GS Sedan 4-Door
- LS AWD Sedan 4-Door
- LS Sedan 4-Door
- LTS AWD Sedan 4-Door
- LTS Sedan 4-Door
- Sport AWD Sedan 2-Door
- Sport Sedan 2-Door
- Sport Sedan 4-Door
- XR5 AWD Sedan 2-Door
- XR5 Sedan 2-Door
Engines covered
- 2.3L 140Cu. In. l4 GAS OHV Naturally Aspirated
What’s inside
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
Why this manual matters
- Faster diagnostics with system-based troubleshooting and wiring diagrams
- Clear procedures and reference sections to reduce guesswork and rework
- Helpful for maintenance planning and verifying parts/specs before repairs
THE IGNITION SWITCH COULD EXPERIENCE AN INTERNAL SHORT CIRCUIT.
THIS CONDITION COULD CAUSE OVERHEATING, SMOKE, AND POSSIBLY FIRE IN THE STEERING COLUMN AREA OF THE
DEALERS WILL REPLACE THE IGNITION SWITCH.
SOME VEHICLES MAY EXHIBIT HEATER CORE LEAKS. *SLC
INFORMATION REGARDING TRANSMISSION FLUID USAGE CHARTS. *SLC
INFORMATION ON THE NEW FLUSH AND FILL TOOL AVAILABLE THROUGH ROTUNDA. *TT
RECOMMENDED GUIDELINES FOR TOWING BEHIND RECREATIONAL VEHICLES. *TT
INFORMATION REGARDING THE NEW TRANSMISSION COOLER FLUSHER- SERVICE TIP. *MJS
INFORMATION ON IDENTIFYING NON-APPROVED / ALTERNATE REFRIGERANTS WHICH COULD CAUSE SAFETY, AND PERFORMANCE CONCERNS IF INSTALLED IN FORD A/C SYSTEMS. *TT
SUBJECT ON A WIRE HARNESS TERMINAL REPAIR KIT AVAILABLE FOR REPAIRING ELECTRICAL WIRING HARNESSES. *TT
EXPERIENCING A WHINE / BUZZ TYPE NOISE IN THE SPEAKERS OF THE ENTERTAINMENT RADIO OR TWO-WAY RADIO ON VEHICLES WITH AN IN-TANK ELECTRIC FUEL PUMP. *TT
Showing the 8 most recent of 38 technical service bulletins on file with NHTSA.
I TOOK MY CAR TO HAVE IT SERVICED ON FRIDAY AND THEY SAID I HAD A GAS LEAK WHICH I HADN'T NOTICED. I HAD EVEN SMOKED IN MY CAR ON THE WAY TO THE STATION. WHEN THEY WAS EMPTYING THE GAS TANK SOMETHING
VEHICLE CAUGHT FIRE DUE TO DEFECTIVE IGNITION SWITCH. A RECALL HAS BEEN ISSUED ON THE VEHICLE'S MAKE/MODEL. HOWEVER, THE CONSUMER WAS NOT NOTIFIED PRIOR TO THE FIRE. DEALER HAS REFUSED TO REIMBURSE
HAD JUST STARTED VEHICLE & LEFT IT PARKED & RUNNING. LEFT FOR A MOMENT. AFTER RETURNING, NOTICED FLAMES AROUND THE EDGES OF THE HOOD. CALLED FIRE DEPARTMENT. THEY PUT FLAMES OUT & INFORMED OWNER IT W
ELECTRICAL SHORT IN THE IGNITION SWITCH, CAUSING THE VEHICLE TO CATCH FIRE IN THE STEERING COLUMN.*AK
CAR WAS PARKED, TURNED OFF AND IT CAUSED A FIRE. PLEASE DESCRIBE .
Showing the 5 most serious of 59 complaints filed with NHTSA.
