1994 Pontiac Trans Sport Service and Repair Manual

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Factory-Grade Data

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

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Vehicle Safety Data

1994 Pontiac Trans Sport Recalls & Complaints

NHTSA #94V10000024/05/1994Component: SEAT BELTS:FRONT:WEBBING

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

Consequence

IMPROPER SHOULDER BELT RETRACTION DOES NOT PROVIDE ADEQUATE PROTECTION TO THE SEAT OCCUPANT IN THE E

Remedy

DEALERS WILL REPLACE THE DOOR FRAME PILLAR TRIM PANEL WITH A REDESIGNED TRIM PANEL. ALSO, A CAUTION

NHTSA #96V01500023/01/1996Component: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES

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

Consequence

VEHICLE FIRES CAN OCCUR DUE TO THE SPILLAGE OF TRANSMISSION FLUID.

Remedy

DEALERS WILL REPLACE THE TRANSMISSION OIL COOLER LINES.

NHTSA #94V01500021/01/1994Component: SEAT BELTS:FRONT:RETRACTOR

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

CONSEQUENCE OF NON-COMPLIANCE: PASSENGERS SEATED IN THESE POSITON MAYBE UNABLE TO EXTRACT AND FASTE

Remedy

DEALERS WILL REMOVE THIRD ROW SAFETY BELT RETRACTORS AND REINSTALL THEM PROPERLY.

NHTSA #93V21200013/12/1993Component: SEAT BELTS:REAR/OTHER

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.

Consequence

IN THE EVENT OF AN ACCIDENT THE SAFETY BELT WOULD NOTRESTRAIN THE OCCUPANT, SUBJECTING THE OCCUPANT

Remedy

DEALERS WILL INSPECT THE SAFETY BELT RETRACTOR ASSEMBLY AND REPLACE THE RETRACTOR IF THE PAWL SPRING

TSB #10168979

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock ce

TSB #10165876

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock ce

TSB #10141381

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock c

TSB #10246631

Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules

TSB #10007559

NO TCC APPLY, MALFUNCTION INDICATOR LAMP (MIL) ON, TCC SURGE, POSSIBLE P0740, P1870, OR 39 AFTER INSTALLATION OF A REMAN (SRTA) 4T60/4T60E. *TT

TSB #619370

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

TSB #6089996

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

TSB #54419

COMMENT THAT THE ABS LIGHT IS ON WITH DIAGNOSTIC TROUBLE CODES (DTC'S) 46 AND 86 SET AS CURRENT OR HISTORY. *YC

Showing the 8 most recent of 25 technical service bulletins on file with NHTSA.

19951023Component: AIR BAGS:FRONTALCrash reported2 injured

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

19951023Component: SEATS:FRONT ASSEMBLY:RECLINERCrash reported2 injured

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

19951023Component: SEATS:FRONT ASSEMBLY:RECLINERCrash reported2 injured

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

19951023Component: AIR BAGS:FRONTALCrash reported2 injured

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

20000411Component: POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCHCrash reported1 injured

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.

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