1994 Pontiac Trans Sport 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
- Base Mini Cargo Van 3-Door
- Base Mini Passenger Van 3-Door
Engines covered
- 3.1L 189Cu. In. V6 GAS OHV Naturally Aspirated
- 3.8L 3800CC 231Cu. 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
THE SECOND ROW, RIGHT HAND SHOULDER BELT CAN BECOME "PINCHED" BETWEEN THE SEAT AND THE DOOR FRAME PILLAR TRIM. THE SHOULDER BELT MAY NOT RETRACT PROPERLY, WHICH DOES NOT COMPLY WITH THE REQUIREMENTS O
IMPROPER SHOULDER BELT RETRACTION DOES NOT PROVIDE ADEQUATE PROTECTION TO THE SEAT OCCUPANT IN THE E
DEALERS WILL REPLACE THE DOOR FRAME PILLAR TRIM PANEL WITH A REDESIGNED TRIM PANEL. ALSO, A CAUTION
VEHICLE DESCRIPTION: PASSENGER VEHICLES MANUFACTURED FROM AUGUST 1991 THROUGH JULY 1995. THE TRANSMISSION OIL COOLER LINE CAN SEPARATE WHEN THE VEHICLE IS OPERATED IN LOW TEMPERATURES IN COMBINATIO
VEHICLE FIRES CAN OCCUR DUE TO THE SPILLAGE OF TRANSMISSION FLUID.
DEALERS WILL REPLACE THE TRANSMISSION OIL COOLER LINES.
THE THIRD ROW SAFETY BELT RETRACTORS MAY BE INSTALLED INCORRECTLY AND MAY LOCK-UP WHEN THE VEHICLE IS ON SLOPES OF LESS THAN 15 DEGREES, WHICH DOES NOT COMPLY WITH FMVSS NO. 209, "SEAT BELT ASSEMBLIES
CONSEQUENCE OF NON-COMPLIANCE: PASSENGERS SEATED IN THESE POSITON MAYBE UNABLE TO EXTRACT AND FASTE
DEALERS WILL REMOVE THIRD ROW SAFETY BELT RETRACTORS AND REINSTALL THEM PROPERLY.
THE SAFETY BELT RETRACTORS FOR THE REAR CENTER POSITION ARE MISSING A PAWL SPRING AND IN CASE OF AN ACCIDENT, WILL ALLOW THE SAFETY BELT WEBBING TO EXTEND BEYOND THE MINIMUM REQUIREMENTS OF FMVSS NO.
IN THE EVENT OF AN ACCIDENT THE SAFETY BELT WOULD NOTRESTRAIN THE OCCUPANT, SUBJECTING THE OCCUPANT
DEALERS WILL INSPECT THE SAFETY BELT RETRACTOR ASSEMBLY AND REPLACE THE RETRACTOR IF THE PAWL SPRING
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
NO TCC APPLY, MALFUNCTION INDICATOR LAMP (MIL) ON, TCC SURGE, POSSIBLE P0740, P1870, OR 39 AFTER INSTALLATION OF A REMAN (SRTA) 4T60/4T60E. *TT
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
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
COMMENT THAT THE ABS LIGHT IS ON WITH DIAGNOSTIC TROUBLE CODES (DTC'S) 46 AND 86 SET AS CURRENT OR HISTORY. *YC
EXPERIENCING INTERMITTENT STEERING COLUMN SNAP OR CLICK NOISE WHEN TURNING. *YC
COLD START RATTLE NOISE (DIAGNOSIS/SERVICE PROCEDURE). *TW
INTERMITTENT ELECTRICAL CONDITIONS (TIGHTEN LOOSE GROUND NUT G105). *TW
Showing the 8 most recent of 22 technical service bulletins on file with NHTSA.
UPON IMPACT FROM THE REAR, BOTH FRONT BUCKET SEAT BACKS BROKE AND COLLAPSED, ALSO DRIVER AIR BAG DID NOT DEPLOY AFTER HITTING THE VEHICLE IN FRONT. TT *SLC
UPON IMPACT FROM THE REAR, BOTH FRONT BUCKET SEAT BACKS BROKE AND COLLAPSED, ALSO DRIVER AIR BAG DID NOT DEPLOY AFTER HITTING THE VEHICLE IN FRONT. TT *SLC
UPON IMPACT FROM THE REAR BOTH FRONT BUCKET SEAT BACKS BROKE AND COLLAPSED, ALSO DRIVER AIR BAG DID NOT DEPLOY AFTER HITTING THE VEHICLE IN FRONT. TT
UPON IMPACT FROM THE REAR BOTH FRONT BUCKET SEAT BACKS BROKE AND COLLAPSED, ALSO DRIVER AIR BAG DID NOT DEPLOY AFTER HITTING THE VEHICLE IN FRONT. TT
CONSUMER'S 3-YEAR OLD SON WAS ABLE TO PUT TRANSMISSION GEAR INTO DRIVE WITHOUT TOUCHING PEDAL, VEHICLE MOVED, HITTING CONSUMER, AND PINNING HER AGAINST THE GARAGE. *AK
Showing the 5 most serious of 128 complaints filed with NHTSA.
