1988 Pontiac Grand Prix Service and Repair Manual

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Factory-Grade Data

1988 Pontiac Grand Prix 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

  • SE Coupe 2-Door
  • Base Coupe 2-Door
  • LE Coupe 2-Door

Engines covered

  • 2.8L 173Cu. In. V6 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

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Vehicle Safety Data

1988 Pontiac Grand Prix Recalls & Complaints

NHTSA #88V04500028/03/1988Component: POWER TRAIN:MANUAL TRANSMISSION:COLUMN SHIFT ASSEMBLY

AN INTERFERENCE BETWEEN THE TRANSMISSION SHIFT CABLE AND THE BELLCRANK CLIP IN THE STEERING COLUMN CAN RESULT IN DISENGAGEMENT OF THE TRANSMISSION CABLE.

Consequence

THIS CONDITION COULD ALLOW THE TRANSMISSION TO BE IN AGEAR OTHER THAN THAT DISPLAYED BY THE SHIFT IN

Remedy

A NEWLY DESIGNED BELLCRANK CLIP WILL BE INSTALLED.

NHTSA #88V03500023/03/1988Component: WHEELS:LUGS/NUTS/BOLTS/STUDS

WHEEL LUG NUTS WERE NOT PROPERLY TORQUED TO SPECIFICATIONS.

Consequence

WHEEL LUG NUTS COULD LOOSEN AND/OR COME OFF THE WHEELSTUDS. THIS COULD EVENTUALLY RESULT IN WHEEL S

Remedy

INSPECTION OF VEHICLE AND ASSURE PROPER TORQUE REPLACES ANY MISSING LUG NUT OR LOOSE STUD.

NHTSA #88V06500018/04/1988Component: LATCHES/LOCKS/LINKAGES:HOOD:LATCH

THE SECONDARY HOOD LATCH MAY NOT PROPERLY ENGAGE.

Consequence

IF PRIMARY LATCH DISENGAGES, HOOD COULD UNEXPECTEDLYOPEN. IF CAR WAS IN MOTION, HOOD COULD CONTACT

Remedy

REPLACE SECONDARY LATCH WITH A NEW LATCH.

NHTSA #95V11500005/06/1995Component: WHEELS

CRACKS DEVELOP IN THE WHEEL MOUNTING SURFACE. IF THESE CRACKS BECOME SEVERE ENOUGH, THE WHEEL WILL COMPLETELY SEPARATE FROM THE VEHICLE.

Consequence

IF WHEEL SEPARATION OCCURS WHILE THE VEHICLE IS IN MOTION, LOSS OF STEERING AND BRAKE CONTROL OF THE

Remedy

DEALERS WILL INSPECT THE MANUFACTURING DATE CODES STAMPED ON EACH WHEEL OF THE VEHICLE AND IF A WHEE

NHTSA #88V17500004/11/1988Component: PARKING BRAKE:CONVENTIONAL:MECHANICAL:LINKAGE AND CABLE

THE PARKING BRAKE CABLE MAY BE DISCONNECTED FROM THE LEFT REAR BRAKE CALIPER.

Consequence

PARKING BRAKE CANNOT BE PROPERLY APPLIED AND VEHICLEWILL NOT MEET THE GRADE HOLDING REQUIREMENTS OF

Remedy

INSTALL A RETAINER ON LEFT REAR CALIPER IF CABLE IS NOT ALREADY RETAINED WITH A COTTER PIN AND ADJUS

NHTSA #88V04900001/04/1988Component: SEAT BELTS:FRONT:WEBBING

THE FRONT SHOULDER BELT GUIDE LOOP ATTACHED TO THE UPPER REAR CORNER OF THE DOOR MAY INTERFERE WITH THE GARNISH MOLDING.

Consequence

THIS INTERFERENCE COULD LIMIT THE ROTATION OF THE GUIDELOOP. IF THIS CONDITION EXISTS AND VEHICLE I

Remedy

A NEWLY DESIGNED GUIDE LOOP NUT AND SPACER WILL BE INSTALLED TO ELIMINATE THE POTENTIAL FOR INTERFER

TSB #6088680

CUSTOMERS MAY COMPLAIN OF GRINDING / SCRAPING / GROANING NOISE FROM REAR SUSPENSION. *TT

TSB #37954

RATTLING NOISE/ENGINE OVERHEATING. *TW

19961127Component: SEAT BELTS:FRONT:RETRACTORCrash reported1 injured

CONSUMER WAS INVOLVED IN A CRASH, IMPACT LOCATION LEFT FRONT FENDER AND THE DRIVER'S SIDE DOOR OPENED, CONSUMER WAS WEARING A SEAT BELT AND THE CONSUMER WAS EJECTED OUT OF THE VEHICLE. *AK

19980218Component: ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASHCrash reported

WHILE DRIVING VEHICLE TRIED TO CROSS THE STREET ABOUT 5 MPH ON A RAINY DAY ANOTHER VEHICLE TURNED IN FRONT AND HIT GRAND PRIX IN FRONT GRILL AND HOOD. SINCE THEN THE DASHBOARD HAD LOST ELECTRICAL PO

19960930Component: WHEELSCrash reported

LEFT/FRONT WHEEL FELL OFF, CAUSING ACCIDENT.

19951204Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPERCrash reported

CALIPERS ARE SEIZING. TT

19950307Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISCCrash reported

CORRODED REAR DISC CALIPER PINS PREVENTED THE CALIPERS FROM RELEASING, CAUSING BRAKE PADS TO OVERHEAT, ONCE RESULTING IN AN ACCIDENT. *AK

Showing the 5 most serious of 119 complaints filed with NHTSA.

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