1985 Pontiac Fiero service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical diagnostics with wiring diagrams
- Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
Trims covered
- Sport Coupe 2-Door
- SE Coupe 2-Door
- GT Coupe 2-Door
- Base Coupe 2-Door
Engines covered
- 2.8L 173Cu. In. V6 GAS OHV Naturally Aspirated
- 2.5L 2474CC 151Cu. In. l4 GAS OHV Naturally Aspirated
Index / Table of contents
- 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
DUE TO AN INTERACTION OF THE ENGINE COMPARTMENT ENVIRONMENT AND MAINTENANCE OR SERVICE RELATED FACTORS, THERE IS A RISK OF ENGINE COMPARTMENT FIRES.
AN ENGINE COMPARTMENT FIRE CAN SPREAD TO THE PASSENGERCOMPARTMENT AND INJURE OCCUPANTS.
CORRECT OR INSTALL NEW ENGINE COMPONENTS TO PREVENT UNREASONABLE FIRE RISK.
PCV GROMMET OIL LEAKS, TRANSMISSION OIL COOLER LEAKS, PISTON CONNECTING ROD FAILURES BREAKING THROUGH ENGINE WALL CAUSING OIL SPILLAGE, FUEL RAIL LEAKS, COOLANT LEAKS, ROCKER COVER OIL LEAKS, AND MAIN
AN ENGINE COMPARTMENT FIRE CAN SPREAD TO THE PASSENGERCOMPARTMENT AND INJURE OCCUPANTS.
CORRECT OR INSTALL NEW COMPONENTS TO PREVENT UNREASONABLE FIRE RISK.
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURE
THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. I
HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOB
PARKING BRAKE ADJUSTER FAILS TO OPERATE AND DO NOT WORK AFTER BRAKE PAD WEAR.
PARKING BRAKES WILL NOT COMPLETELY HOLD A PARKED VEHICLEWHEN PARKED ON A SLOPE, CAUSING UNINTENDED V
REPLACE NONFUNCTIONING PARKING BRAKE ADJUSTERS.
MOTOR MOUNTS CAME APART. TT
RECALLS 89 V 232 000/ENGINE AND 90 V 104 000/ENGINE: VEHICLE HAD AN ENGINE COMPARTMENT FIRE WHILE TRAVELING 15-20 MPH. MANUFACTURER WAS NOTIFIED. FEEL FREE TO PROVIDE ANY FURTHER INFORMATION ON TH
MY CAR STARTED TO DEVELOP WHAT I THOUGHT WAS AN EXHAUST LEAK FROM NORMAL WEAR & TEAR. I TOOK THE VEHICLE TO SEVERAL EXHAUST SPECIALTY SHOPS (I.E. COLE MUFFLER, MIDAS, ETC.) TO HAVE THE PROBLEM CORREC
TOOK TO DEALER TO BE REPAIRED AND THE DEALER BROKE PARTS OF THE ENGINE AND IS CHARGING CONSUMER FOR FIXING VEHICLE UNDER A RECALL THAT WAS NOT CORRECTED THE FIRST TIME. *AK
ENGINE FAILED, CAUSING OIL LEAKAGE, RESULTING IN A FIRE PRIO TO/AFTER RECALL REPAIRS (90V-104). *AK
Showing the 5 most serious of 40 complaints filed with NHTSA.
