2003 Dodge Ram 2500 Service and Repair Manual

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Factory-Grade Data

2003 Dodge Ram 2500 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
  • SLT Cab & Chassis 2-Door
  • Laramie Cab & Chassis 4-Door
  • Laramie Cab & Chassis 2-Door
  • Laramie Standard Cab Pickup 2-Door
  • ST Cab & Chassis 4-Door
  • SLT Cab & Chassis 4-Door
  • Laramie Crew Cab Pickup 4-Door
  • ST Cab & Chassis 2-Door
  • ST Standard Cab Pickup 2-Door
  • ST Crew Cab Pickup 4-Door
  • SLT Standard Cab Pickup 2-Door

Engines covered

  • 5.7L 345Cu. In. V8 GAS OHV Naturally Aspirated
  • 8.0L 7990CC 488Cu. In. V10 GAS OHV Naturally Aspirated
  • 5.9L 359Cu. In. l6 DIESEL OHV Turbocharged
  • 4.7L 287Cu. In. V8 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 2500 Recalls & Complaints

NHTSA #13V52800006/11/2013Component: STEERING:LINKAGES:TIE ROD ASSEMBLY

Chrysler Group LLC (Chrysler) is recalling certain model year 2003-2008 Dodge RAM 2500 4x4 and 3500 4x4, model year 2007-2008 Dodge RAM 3500 4x2 Cab Chassis and model year 2006-2008 Dodge RAM 1500 Meg

Consequence

A failure of the tie rod assembly may result in a loss of steering control, increasing the risk of a

Remedy

Chrysler notified owners and launched its recall campaign in January 2014. Owners may contact Chr

NHTSA #05V46200006/10/2005Component: POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

ON CERTAIN PICKUP TRUCKS EQUIPPED WITH DIESEL ENGINES AND AUTOMATIC TRANSMISSIONS, IN AN ATTEMPT TO EXIT THE VEHICLE QUICKLY WITHOUT SHUTTING OFF THE ENGINE AND REMOVING THE KEY, THE DRIVER MAY INADVE

Consequence

THIS ERROR IS AN UNINTENDED ACTION THAT MAY RESULT IN A LACK OF TRANSMISSION PARK PAWL ENGAGEMENT AN

Remedy

DEALERS WILL PERFORM A SOFTWARE MODIFICATION TO EQUIP THESE VEHICLES WITH AN OUT-OF-PARK ALARM. OWN

NHTSA #11V35000006/07/2011Component: STEERING:LINKAGES:TIE ROD ASSEMBLY

CHRYSLER IS RECALLING CERTAIN MODEL YEAR 2008-2011 DODGE RAM 2500/3500 4X4, MANUFACTURED FROM FEBRUARY 14, 2008, THROUGH MARCH 28, 2011; MODEL YEAR 2008-2011 DODGE RAM 3500 CAB CHASSIS 4X2, MANUFACTUR

Consequence

THIS CONDITION COULD RESULT IN THE POTENTIAL LOSS OF DIRECTIONAL STABILITY IN THE LEFT HAND FRONT WH

Remedy

DEALERS WILL INSPECT THE TIE ROD ENDS FOR RELATIVE ORIENTATION AND REPLACE THE LEFT OUTER TIE ROD AS

NHTSA #03V21200005/06/2003Component: WHEELS:HUBCAP/COVER

CERTAIN HEAVY DUTY PICKUP TRUCKS, THE ALUMINUM WHEELS MAY HAVE EXCESSIVE POROSITY IN THE CENTER HUB AREA WHICH CAN CAUSE A WHEEL TO CRACK.

Consequence

THIS COULD CAUSE A LOSS OF VEHICLE CONTROL AND RESULT IN A CRASH WITHOUT WARNING.

Remedy

DEALERS WILL INSPECT THE WHEELS AND REPLACE THEM IF NECESSARY. OWNER NOTIFICATION IS EXPECTED TO BE

NHTSA #03V03300005/02/2003Component: VEHICLE SPEED CONTROL

CERTAIN PICKUP TRUCKS, EQUIPPED WITH CUMMINS DIESEL ENGINES AND MANUAL TRANSMISSIONS, MAY EXPERIENCE AN ELEVATED IDLE SPEED AFTER EXTENDED CRUISE CONTROL USE.

Consequence

THIS CAN RESULT IN UNINTENDED ACCELERATION AND A REDUCTION IN BRAKING EFFECTIVENESS, INCREASING THE

Remedy

DEALERS WILL REPROGRAM THE SOFTWARE IN THE CUMMINS ENGINE CONTROLLER. OWNER NOTIFICATION 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

NHTSA #07E00900001/02/2007Component: SUSPENSION

CERTAIN LKI ENTERPRISES, INC., BRAND NAME SUPERLIFT SUSPENSION, PITMAN ARMS SOLD AS REPLACEMENT EQUIPMENT FOR 2003-2007 DODGE RAM 2500 AND 3500 4X4 LIGHT TRUCKS. DUE TO INADEQUATE HEAT TREATMENT DURI

Consequence

PITMAN ARM WEAR OR FAILURE MAY LEAD TO LOSS OF VEHICLE CONTROL, POSSIBLY RESULTING IN A VEHICLE CRAS

Remedy

LKI WILL NOTIFY OWNERS AND REPLACE THE PITMAN ARM, IF NECESSARY. THE RECALL BEGAN ON MARCH 12, 2007

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 #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

TSB #10175743

Disinfectant Solution Recommended for COVID-19

TSB #10229181

Part Description: 5.7L Long Block Issue Description: This 5.7L Long Block Assembly is compatible with both EGR and Non-EGR applications. An EGR Block-Off Plate (53032739AA) must be ordered when installing this Long Block Assembly in a Non-E

Showing the 8 most recent of 31 technical service bulletins on file with NHTSA.

20200729Component: AIR BAGSCrash reported4 injured

VEHICLE WAS INVOLVED IN A COLLISION GOING 50 MPH ON A HIGHWAY AND ANOTHER VEHICLE FAILED TO STOP AT A STOP SIGN AT A CROSS ROAD AND WE STRUCK THEM WITH THE FRONT OF THE VEHICLE ON THEIR PASSENGER DOOR

20130811Component: STEERINGCrash reported2 injured

AT APPROX. 55-60 MPH, THE TRUCK BEGAN TO SHAKE VERY VIOLENTLY. APPLIED BRAKE, TO ATTEMPT TO GET TRUCK UNDER CONTROL; WE ENDED UP IN THE DITCH. MYSELF AND MY DAUGHTER WERE INJURED. LUCKILY, NEITHER OF

20130811Component: SUSPENSIONCrash reported2 injured

AT APPROX. 55-60 MPH, THE TRUCK BEGAN TO SHAKE VERY VIOLENTLY. APPLIED BRAKE, TO ATTEMPT TO GET TRUCK UNDER CONTROL; WE ENDED UP IN THE DITCH. MYSELF AND MY DAUGHTER WERE INJURED. LUCKILY, NEITHER OF

20030626Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITEDCrash reported2 injured

THE BRAKE PEDAL WENT TO THE FLOOR WHEN THE BRAKE WAS APPLIED. *NLM *TS ALSO THE AIR BAGS FAILED TO DEPLOY. *JB THE AIR CONDITION WAS INOPERATIVE. *JB

20030626Component: AIR BAGSCrash reported2 injured

THE BRAKE PEDAL WENT TO THE FLOOR WHEN THE BRAKE WAS APPLIED. *NLM *TS ALSO THE AIR BAGS FAILED TO DEPLOY. *JB THE AIR CONDITION WAS INOPERATIVE. *JB

Showing the 5 most serious of 866 complaints filed with NHTSA.

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