1986 Mercury Topaz Service and Repair Manual
The 1986 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
- Base Sedan 2-Door
- Base Sedan 4-Door
- GS Sedan 2-Door
- GS Sedan 4-Door
- LS Sedan 2-Door
- LS Sedan 4-Door
Engines covered
- 2.0L 1989CC 122Cu. In. l4 DIESEL SOHC Naturally Aspirated
- 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
CERTAIN FEDERAL-MOGUL AFTERMARKET FUEL PUMPS SOLD UNDER THE BRAND NAMES OF CARTER, ACCUFLOW, NAPA, TRUFLOW, PARTS DEPO, AND PARTS MASTER, SHIPPED BETWEEN AUGUST 2006 AND JULY 2007 FOR USE ON THE VEHIC
A LEAKING FUEL PUMP COULD CREATE A VEHICLE FIRE HAZARD.
FEDERAL-MOGUL WILL NOTIFY OWNERS AND REPLACE THE DEFECTIVE FUEL PUMPS FREE OF CHARGE. THE RECALL BE
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
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
FORD MOTOR COMPANY HAS RELEASED A NEW ELECTRICAL GREASE ( F8AZ - 19G208-AA ) TO REDUCE THE POSSIBILITY OF MOISTURE CORROSION AT THE TERMINALS. *YC
A NEW SILICONE GASKET AND SEALANT. *YC
Showing the 8 most recent of 25 technical service bulletins on file with NHTSA.
ENGINE COMPARTMENT FIRE. *SD
ELECTRICAL SHORT IN THE IGNITION SWITCH, CAUSING THE VEHICLE TO CATCH ON FIRE. *AK
THE HEAD GASKET LEAK AND REPLACE FAN MOTOR , CAR CAUGHT ON FIRE TWO TIMES,THE RACK/PINION WENT OUT WHEN DRIVING THERE IS MORE . TT
SUDDEN APPLICATION OF FOOT BRAKE CAUSES RIGHT FRONT BRAKE TO LOCK. NO BRAKING ON OTHER 3 WHEELS. ABLE TO STOP ONLY BY USING HAND BRAKE AND STEERING TO AVOID COLLISION. REPLACED BRAKES TO NO EFFECT.
Showing the 4 most serious of 13 complaints filed with NHTSA.
