2003 Pontiac Sunfire Service and Repair Manual

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Factory-Grade Data

2003 Pontiac Sunfire 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
  • SE Sedan 4-Door
  • GT Coupe 2-Door

Engines covered

  • 2.2L 2198CC 134Cu. 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

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Vehicle Safety Data

2003 Pontiac Sunfire Recalls & Complaints

NHTSA #08E06300017/10/2008Component: STEERING

DORMAN PRODUCTS IS RECALLING 3,900 INTERMEDIATE STEERING SHAFTS DORMAN PART NOS. 425-151, 425-152, AND 425-153, (SOLD UNDER DORMAN'S "OE SOLUTIONS" BRAND NAME), BALKAMP #'S 7-3057, 7-3058, 7-3059 (SOL

Consequence

IF THE WELD FAILS, LOSS OF STEERING COULD RESULT, POSSIBLY RESULTING IN A VEHICLE CRASH.

Remedy

DORMAN WILL NOTIFY OWNERS AND REPLACE THE STEERING SHAFTS FREE OF CHARGE. THE RECALL BEGAN ON OCTOB

NHTSA #04V52400001/11/2004Component: EXTERIOR LIGHTING:TURN SIGNAL

ON CERTAIN PASSENGER VEHICLES, THE REAR LAMPS THAT PROVIDE STOP AND TURN SIGNALS AND TAIL LAMP FUNCTIONS STOP WORKING BECAUSE OF INADEQUATE CONTACT BETWEEN THE BULB AND SOCKET. IN ADDITION, IF ONE BU

Consequence

AN INOPERATIVE BRAKE LAMP WILL NOT CONVEY THE DRIVER'S INTENTION OF STOPPING TO DRIVERS IN FOLLOWING

Remedy

DEALERS WILL INSPECT THE REAR LAMP BULB SOCKET ASSEMBLIES AND APPLY GREASE OR REPLACE THEM IF NECESS

TSB #11020816

This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

TSB #11017252

This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.

TSB #11014455

This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the

TSB #11009156

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and

TSB #11007744

This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi

TSB #11007743

This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi

TSB #11007208

This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed fo

TSB #11006621

Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected mo

Showing the 8 most recent of 458 technical service bulletins on file with NHTSA.

20130616Component: AIR BAGSCrash reported1 injured

I WAS DRIVING ON THE HIGHWAY AROUND 5:00PM, PERFECT ROAD CONDITIONS. I STARTED CHOKING & SWERVED INTO ANOTHER LANE, OTHER DRIVER BLASTED HIS HORN & SCARED ME. I OVER COMPENSATED & LOST CONTROL OF MY C

20130616Component: SEAT BELTSCrash reported1 injured

I WAS DRIVING ON THE HIGHWAY AROUND 5:00PM, PERFECT ROAD CONDITIONS. I STARTED CHOKING & SWERVED INTO ANOTHER LANE, OTHER DRIVER BLASTED HIS HORN & SCARED ME. I OVER COMPENSATED & LOST CONTROL OF MY C

20050713Component: AIR BAGSCrash reported1 injured

DT: WHILE DRIVING ABOUT 45 MPH, THE AIRBAGS DEPLOYED INADVERTENTLY DEPLOYED WHICH CAUSED THE CONSUMER TO STRIKE A UTILITY POLE. THE SEAT BELT ALSO FAILED, IT UNLATCHED DURING THIS INCIDENT. THE V

20050713Component: SEAT BELTS:FRONT:BUCKLE ASSEMBLYCrash reported1 injured

DT: WHILE DRIVING ABOUT 45 MPH, THE AIRBAGS DEPLOYED INADVERTENTLY DEPLOYED WHICH CAUSED THE CONSUMER TO STRIKE A UTILITY POLE. THE SEAT BELT ALSO FAILED, IT UNLATCHED DURING THIS INCIDENT. THE V

20140615Component: STEERINGCrash reported

BOUGHT A 2003 PONTIAC SUNFIRE FROM A DEALERSHIP 5 MONTHS AGO. I TOLD THE OWNER/SALESMAN I WANTED A SAFE 1ST CAR FOR MY KID. MY KID AND SOME FRIENDS WERE DRIVING,IT WAS RAINING AND THE BACK TIRES START

Showing the 5 most serious of 113 complaints filed with NHTSA.

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