1993 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
- LE Sedan 4-Door
- SE Coupe 2-Door
- STE Sedan 4-Door
- SE Sedan 4-Door
- GT Coupe 2-Door
- GTP Coupe 2-Door
Engines covered
- 3.1L 189Cu. In. V6 GAS OHV Naturally Aspirated
- 3.4L 207Cu. In. V6 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 DELPHI FUEL PRESSURE REGULATORS, P/NOS. FP10020-11B1, FP10026-11B1, AND FP10027-11B1, SOLD AFTER JANUARY 9, 2007, AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES LISTED ABOVE. THE UNI
FUEL MAY LEAK, POSSIBLY RESULTING IN A FIRE.
DELPHI WILL NOTIFY OWNERS AND REPLACE THE UPR FREE OF CHARGE. THE RECALL BEGAN ON APRIL 23, 2007.
THE DRIVER AND PASSENGER FRONT SEAT MANUAL RECLINING MECHANISMS DO NOT COMPLY WITH THE REQUIREMENTS OF FMVSS 207, "SEATING SYSTEMS." THE SEAT BACK MECHANISMS WILL NOT LATCH UNDER CERTAIN CONDITIONS.
THE SEATS MAY RECLINE WITHOUT PRIOR WARNING, RESULTINGIN A HAZARD TO SEAT OCCUPANTS AND POSSIBLE LOS
REPLACE THE MANUAL SEAT RECLINER MECHANISM WITH A MECHANISM THAT COMPLIES WITH FMVSS 207.
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
OWNERS OF SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60, 4T60-E OR 4T65-E TRANSAXLES MAY COMMENT ON A GRINDING AND / OR GROWLING NOISE THAT IS NOTICEABLE WHEN STANDING IN PARK ON A HILL OR SLOPE WITH THE ENGINE RUNNING AND THE PARKING
VOLUNTARY EMISSION CAMPAIGN INVOLVING THE EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE REPLACEMENT AND, CONVERTIBLE ONLY, PROM REPLACEMENT. *TT
SOME V6 ENGINES MAY, ON A VERY INFREQUENT BASIS, HAVE AN OIL ODOR CONDITION THAT IS GENERALLY ENCOUNTERED AFTER THE ENGINE'S OIL HAS BEEN CHANGED.TYPICALLY THE ODOR LASTS APPROXIMATELY 1000 MILES AFTER THE CHANGE OF OIL AND THEN DOES NOT RE
SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60 OR 4T60-E TRANSXALES MAY COMMENT ON A GRINDING AND / OR GROWLING NOISE THAT IS NOTICEABLE WHEN IN PARK ON INCLINE. *TT
CUSTOMERS MAY COMPLAIN OF GRINDING / SCRAPING / GROANING NOISE FROM REAR SUSPENSION. *TT
EXCESSIVE OIL CONSUMPTION (REPLACE PCV HARNESS). *TW
EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VLAVE REPLACEMENT AND CONVERTIBLE ONLY, PROM REPLACEMENT. *YC
Showing the 8 most recent of 20 technical service bulletins on file with NHTSA.
SEAT BELT MOUNTED TO THE DOOR FAILED TO RESTRAIN MY SON IN THE VEHICLE WHEN HE GOT INTO AN ACCIDENT. THE DOOR OPENED CAUSED FOR HIM TO BE EJECTED AND MY SON DID NOT SURVIVE THE ACCIDENT. THE DOOR LINK
SEAT BELT MOUNTED TO THE DOOR FAILED TO RESTRAIN MY SON IN THE VEHICLE WHEN HE GOT INTO AN ACCIDENT. THE DOOR OPENED CAUSED FOR HIM TO BE EJECTED AND MY SON DID NOT SURVIVE THE ACCIDENT. THE DOOR LINK
WHILE DRIVING 20-30MPH VEHICLE WAS INVOLVED IN A FRONTAL COLLISION, AND SEAT BELT DID NOT DID RETRACT, RESULTING IN MINOR INJURIES. MANUFACTURER HAS BEEN NOTIFIED. *AK
THE VEHICLE WAS REAR ENDED BY ANOTHER VEHICLE AND THE DRIVER'S SIDE SEAT COLLAPSED; AND THE BACK OF THE SEAT WENT IN THE BACK SEAT OF THE CAR, CAUSING INJURIES TO THE DRIVER. *AK
DRIVERS SIDE SEAT BELT DOES NOT RESTRAIN PROPERLY. PLEASE DESCRIBE IN MORE DETAIL. TT
Showing the 5 most serious of 185 complaints filed with NHTSA.
