2003 Dodge Ram 1500 Service and Repair Manual

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Factory-Grade Data

2003 Dodge Ram 1500 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 troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Wiring diagrams and electrical sections
  • Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

  • SLT Crew Cab Pickup 4-Door
  • Laramie Standard Cab Pickup 2-Door
  • Laramie Crew Cab Pickup 4-Door
  • ST Standard Cab Pickup 2-Door
  • ST Crew Cab Pickup 4-Door
  • SLT Standard Cab Pickup 2-Door

Engines covered

  • 5.9L 360Cu. In. V8 GAS OHV Naturally Aspirated
  • 4.7L 287Cu. In. V8 GAS SOHC Naturally Aspirated
  • 5.7L 345Cu. In. V8 GAS OHV Naturally Aspirated
  • 3.7L 226Cu. In. V6 GAS SOHC 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 Dodge Ram 1500 Recalls & Complaints

NHTSA #10E04000023/08/2010Component: WHEELS:HUB

FEDERAL-MOGUL IS RECALLING CERTAIN CARQUEST, NATIONAL, AND PERCISION BRAND WHEEL HUB ASSEMBLIES, P/NOS 515073 AND 515073, SOLD FOR USE AS REPLACEMENT EQUIPMENT ON MODEL YEAR 2002 THROUGH 2008 DODGE RA

Consequence

A VEHICLE CRASH CAN OCCUR IF THE WHEEL SEPARATES FROM THE VEHICLE.

Remedy

FEDERAL-MOGUL WILL NOTIFY OWNERS OF RECORD AND TECHNICIANS WILL REPLACE THE AFFECTED HUB ASSEMBLIES

NHTSA #06E02400015/03/2006Component: ENGINE AND ENGINE COOLING

CERTAIN REPLACEMENT K&N FUEL PERFORMANCE KITS, P/NOS. 57-1509, 57-1511, 57-1511-1, 57-1517, 57-1517-1, 57-1527, AND 57-1530. ALSO, A SMALL PERCENTAGE OF THESE KITS WERE SOLD UNDER THE MOPAR PERFORMAN

Consequence

A JAMMED OPEN THROTTLE COULD CAUSE UNINTENDED ACCELERATION OF THE VEHICLE, POSSIBLY RESULTING IN A C

Remedy

K&N WILL PROVIDE OWNERS WITH A FREE REPAIR KIT ALONG WITH REPAIR INSTRUCTIONS. THE RECALL BEGAN ON

NHTSA #10E01300003/05/2010Component: STEERING:GEAR BOX:SHAFT PITMAN

FABTECH IS RECALLING CERTAIN AFTERMARKET REPLACEMENT PITMAN ARMS, P/NOS. FTS93001 AND FT44039, INSTALLED FOR USE ON CERTAIN 2003 THROUGH 2008 DODGE 2500 4WD, 3500 4WD, AND 1500 4WD MEGA CAB VEHICLES.

Consequence

STEERING LOSS COULD RESULT IN A VEHICLE CRASH POSSIBLY RESULTING IN PROPERTY DAMAGE, INJURY OR DEATH

Remedy

FABTECH WILL NOTIFY OWNERS AND AUTHORIZED INSTALLERS WILL INSPECT FOR DEFECTIVE PITMAN ARM AND REPLA

TSB #11010205

Plate - Planetary

TSB #10229256

KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not program to the vehicl

TSB #10221686

KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not program to the vehicl

TSB #10220471

Mechanical rocker arm, intake, 1.7 ratio.

TSB #10191442

Mechanical rocker arm, intake, 1.7 ratio.

TSB #10191455

Cummins Equipped Vehicles ONLY - The replacement oil pan gasket can be a four piece gasket rather than a single piece gasket. This applies to Cummins 5.9L and 6.7L engines only.

TSB #10191460

Valve Body. These may cause over drive cycling.

TSB #10175735

Charging System, Battery Diagnostic Tools and Warranty This information only bulletin discusses using the correct test equipment for testing batteries and charging systems, and also warranty reimbursement when battery replacements are neces

Showing the 8 most recent of 28 technical service bulletins on file with NHTSA.

20161212Component: AIR BAGSCrash reportedFire reported1 injured

TAMARA RECALL MY FINANCE WAS CUT ON HIS NECK BY THE AIR BAG WHEN HE WAS IN A ACCIDENT. THE VEHICLE WAS IN MOTION. ..UPDATED 02/13/17 *BF *CN

20140928Component: POWER TRAINCrash reportedFire reported

REAR AXLE LOCKED UP WHILE DRIVING AND SNAPPED BOLTS TO THE DRIVE SHAFT THEN DRIVE SHAFT FELL OFF ONTO THE ROAD. TRUCK CAME SKIDDING TO A STOP. REAR AXLE WILL NOT TURN AT ALL. *TR

20031207Component: SUSPENSION:FRONT:CONTROL ARM:UPPER BALL JOINTCrash reportedFire reported

UPPER BALL JOINTS ON 1-YR OLD TRUCK ARE JUNK. "SEALED" JUST MEANS THEY HAVE TO BE REPLACED MORE OFTEN, ANOTHER SCAM TO CHARGE EXTRA DOLLARS. MY WIFE'S LIBERTY HAS FAILING BALL JOINTS ALSO, THOUGH HER

20190503Component: AIR BAGSCrash reported5 injured

TL* THE CONTACT OWNED A 2003 DODGE RAM 1500. WHILE THE CONTACT'S FIANCE WAS DRIVING 50 MPH, HE SWERVED TO AVOID A SKUNK AND LOST CONTROL OF THE VEHICLE. THE VEHICLE CRASHED INTO A DITCH AND ROLLED OVE

20150922Component: AIR BAGSCrash reported4 injured

TL* THE CONTACT OWNED A 2003 DODGE RAM 1500. WHILE DRIVING APPROXIMATELY 25 MPH, THE DRIVER LOST CONTROL OF THE VEHICLE AND CRASHED INTO A TREE. DURING THE CRASH, THE FRONT END SUSTAINED SEVERE DAMAGE

Showing the 5 most serious of 1362 complaints filed with NHTSA.

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