2003 Lincoln LS Service and Repair Manual

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Factory-Grade Data

2003 Lincoln LS 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.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • LSE Sedan 4-Door
  • Base Sedan 4-Door
  • Sport Sedan 4-Door
  • Premium Sport Sedan 4-Door

Engines covered

  • 3.9L 242Cu. In. V8 GAS DOHC Naturally Aspirated
  • 3.0L 2968CC 181Cu. In. V6 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 Lincoln LS Recalls & Complaints

NHTSA #03V13600007/04/2003Component: WHEELS

ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 17 INCH CHROME WHEELS, THE CHROME WHEELS WERE NOT HEAT-TREATED. THESE WHEELS MAY CRACK AT THE LUG-NUT HOLES, WHICH COULD RESULT IN THE LOSS OF THE LUG-NUT

Consequence

IF THIS CONDITION OCCURS, THE DRIVER MAY EXPERIENCE NOISE AND/OR VIBRATION WHILE DRIVING THE VEHICLE

Remedy

DEALERS WILL INSPECT THE WHEELS TO MAKE SURE THAT ALL THE WHEELS HAVE BEEN HEAT-TREATED. ANY WHEEL

TSB #10177863

This article supersedes TSB 19-2026 to update the vehicle model years affected. Some 2000 and newer Ford/Lincoln/Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint wi

TSB #10156863

Some 2000 and newer Ford, Lincoln and Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. Panel replacement is recommended. Fo

TSB #10155551

Some 2000 and newer Ford, Lincoln and Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. Panel replacement is recommended. Fo

TSB #10048099

FORD/LINCOLN/MERCURY: MAY HAVE SLUDGE BUILDUP IN THROTTLE BODY LEADING TO LESS AIRFLOW OR ENGINE IDLING RPM FLUCTUATION AND HARD STARTS OR BATTERY DISCONNECT OR DEAD BATTERY AFTER KEEP ALIVE MEMORY (KAM) CLEAR. MODELS 2003-05 THUNDERBIRD, 0

TSB #10026402

FORD/LINCOLN MERCURY: CERTAIN 2003-2005 MODEL YEAR LINCOLN LS AND FORD THUNDERBIRD VEHICLES EQUIPPED WITH 3.9L ENGINE WITH EXTENDED WARRANTY COVERAGE ON IGNITION COIL ASSEMBLIES AND ON 2003 MY VEHICLES ONLY , ENGINE VALVE COVER GASKETS. *PE

TSB #10025342

LINCOLN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN 2003-2005 LINCOLN LS VEHICLES EQUIPPED WITH DURATEC 3.0L 4V ENGINE. PCV HOSE ASSEMBLY REPLACEMENT. CSC WAS RECEIVED. *PE

TSB #10023293

CERTAIN 2003 MODEL YEAR LINCOLN LS AND FORD THUNDERBIRD VEHICLES EQUIPPED WITH 3.9L ENGINE - EXTENDED WARRANTY COVERAGE ON IGNITION COIL ASSEMBLIES AND ENGINE VALVE COVER GASKETS. ALSO HAVE AN OWNER'S LETTER. *NJ

TSB #10022299

PARKING AID SYSTEM IS INOPERATIVE - DTC C1983. *KB

Showing the 8 most recent of 81 technical service bulletins on file with NHTSA.

20060428Component: VEHICLE SPEED CONTROLCrash reported

DT*: THE CONTACT STATED THE VEHICLE HAD JUST BEEN PARKED WITH THE BRAKE PEDAL DEPRESSED AND THE VEHICLE ACCELERATED FORWARD. THE VEHICLE WENT OVER A CURB, HIT A TREE, AND STOPPED AFTER HITTING TWO

20050713Component: STEERINGCrash reported

NUMEROUS RANDOM FAILURES INVOLVING DIFFERENT COMPUTERS WITHIN VEHICLE OVER 1-1/2 YEARS, INCLUDING FAILURE AND REPLACEMENT OF RACK AND PINION SYSTEM. BRAKE SYSTEM FAILURE ON 6/03/05 - ABS COMPUTER WAS

20040809Component: VEHICLE SPEED CONTROL:ACCELERATOR PEDALCrash reported

DRIVER WAS SLOWLY APPROACHING A LOW CURB WHILE PARKING IN A CHURCH PARKING LOT CAR WAS MOVING AT NO MORE THAN 1 OR 2 MILES PER HOUR AS THE CURB WAS APPROACHED AND THE BRAKE WAS LIGHTLY APPLIED PENDING

20040811Component: AIR BAGS:SIDE/WINDOW1 injured

SIDE AIR BAG DEPLOYED IN PASSENGER SEAT WHILE CRUISING AT A SPEED OF APROX 65 MPH IN LEASED CAR. 2003 LINCOLN LS SEDAN. I WAS IN PASSENGER SEAT AND ARM & EAR WERE INJURED. DID NOT HIT OR RUN OVER A

20040605Component: AIR BAGS:SIDE/WINDOW1 injured

SIDE AIR BAG DEPLOYMENT IN PASSANGER SEAT WHILE CRUSING AT SPEED LIMIT OF 55MPH IN MY LEASED COMPANY CAR; A 2003 LINCOLN LS SEDAN. WE DID NOT HIT OR RUN OVER ANYTHING. DEALER IS STATING WE MUST HAVE

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

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