1991 Pontiac Grand Am 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
- Value Leader Sedan 4-Door
- LE Sedan 4-Door
- SE Coupe 2-Door
- Value Leader Coupe 2-Door
- SE Sedan 4-Door
- LE Coupe 2-Door
Engines covered
- 2.5L 2474CC 151Cu. In. l4 GAS OHV Naturally Aspirated
- 2.3L 138Cu. In. l4 GAS DOHC Naturally Aspirated
- 2.3L 140Cu. In. l4 GAS DOHC 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
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
REPLACE STEERING COLUMN ASSEMBLY.
MOISTURE CAN ENTER THE EXPRESS-DOWN ELECTRONIC CONTROL MODULE AND CAUSE A SHORT CIRCUIT THAT CAUSES WINDOW OPERATION WITHOUT OPERATOR CONTROL, AND LEAVES THE WINDOW IN THE DOWN POSITION.
THE ELECTRONIC CONTROL MODULE WILL FAIL FROM OVERHEATINGAND COULD RESULT IN A FIRE HAZARD INSIDE THE
REPLACE THE WINDOW EXPRESS-DOWN ELECTRONIC CONTROL MODULE.
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
VEHICLES MAY SET ANYONE OR A COMBINATION OF FRONT-WHEEL SPEED SENSOR ANTI-LOCK BRAKE SYSTEM CODES AS INTERMITTENT OR HARD FAILURES. GM VOICEMAIL EXPRESS. *TT
ANTI-LOCK BRAKING SYSTEM (ABS) FRONT WHEEL SPEED CODES - JUMPER HARNESS. *TT
ABS FRONT WHEEL SPEED CODES - JUMPER HARNESS. *TT
INFORMATION REGARDING SNOW INTRUSION INTO REAR DRUM BRAKE ASSEMBLIES. **MR
COMMENT THAT THE ABS LIGHT IS ON WITH DIAGNOSTIC TROUBLE CODES (DTC'S) 46 AND 86 SET AS CURRENT OR HISTORY. *YC
UNKNOWN
CRUNCH NOISE FROM RIGHT SIDE DASH AREA WHEN TURNING STEERING WHEEL. *TW
THE BRAKES FAILED ON THE CAR WHICH LED THE CAR TO GO INTO THE WOODS AND CATCH ON FIRE. ENGINE IS BELIEVED TO HAVE ALREADY BEEN ON FIRE.PLEASE DESCRIBE. *AK
TL* THE CONTACT OWNED A 1990 (NA) PONTIAC GRAND AM. WHILE DRIVING APPROXIMATELY 30-40 MPH, THE VEHICLE STALLED WITHOUT WARNING. AS A RESULT, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE CONTACT SUSTA
THE DRIVER LOST CONTROL OF THE VEHICLE DUE TO INCLEMENT WEATHER. VEHICLE HIT THE GUARD RAIL. AND AS A RESULT, DRIVER'S FACE HIT THE WINDSHIELD BECAUSE THE SEAT BELT DID NOT OPERATE AND LOCK. DEALER W
THE DRIVER LOST CONTROL OF THE VEHICLE DUE TO INCLEMENT WEATHER. VEHICLE HIT THE GUARD RAIL. AND AS A RESULT, DRIVER'S FACE HIT THE WINDSHIELD BECAUSE THE SEAT BELT DID NOT OPERATE AND LOCK. DEALER W
SEAT BELT FAILED
Showing the 5 most serious of 102 complaints filed with NHTSA.
